Toyota Diagnostic Fault Codes List

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See also: Toyota PDF Service Manuals

P0100 Air Flow Sensor Circuit Malfunction
P0101 Flow sensor signal output from the permissible range
P0102 Air Flow Sensor Low Output Level
P0103 High flow sensor output
P0105 Air Pressure Sensor Fault
P0106 ​​Air pressure sensor signal output from the permissible range
P0107 Low level of the air pressure sensor output signal

P0108 High level of output signal of air pressure sensor
P0110 Inlet air temperature sensor fault
P0111 Suction air temperature sensor output signal from the permissible range
P0112 Inlet air temperature sensor low
P0113 High intake air temperature sensor
P0115 Coolant Temperature Sensor Fault
P0116 Coolant temperature sensor output signal from permissible range
P0117 Coolant Temperature Sensor Low

P0118 High Level Coolant Temperature Sensor
P0120 Throttle Position Sensor “A” Malfunction
P0121 Throttle position sensor signal output “A” out of range
P0122 Throttle Position Sensor “A” Low Output
P0123 Throttle Position Sensor “A” High Output
P0125 Low coolant temperature for closed loop control
P0130 The oxygen sensor 1 (bank 1) is defective
P0131 Oxygen sensor 1 low (bank 1)
P0132 High oxygen sensor 1 signal (Bank 1)
P0133 Slow response of the oxygen sensor 1 (bank 1) for enrichment depletion
P0134 No oxygen sensor output 1 activity (Bank 1)
P0135 Heater of oxygen sensor 1 (bank 1) defective
P0136 The oxygen sensor 2 (bank 1) is defective
P0137 Low level of oxygen sensor 2 output (bank 1)
P0138 High oxygen sensor 2 output level (Bank 1)
P0139 Slow response of the oxygen sensor 2 (bank 1) for enrichment depletion
P0140 No oxygen sensor 2 output signal (Bank 1)
P0141 Heater of oxygen sensor 2 (bank 1) defective
P0142 The oxygen sensor 3 (bank 1) is defective
P0143 Low oxygen sensor output 3 (Bank 1)
P0144 High oxygen sensor 3 output level (Bank 1)
P0145 Slow response of oxygen sensor 3 (bank 1) for enrichment / depletion
P0146 No oxygen sensor output 3 activity (Bank 1)
P0147 Heater of oxygen sensor 3 (bank 1) defective
P0150 The oxygen sensor 1 (bank 2) is defective
P0151 Oxygen sensor 1 low (bank 2)
P0152 High oxygen sensor 1 signal (Bank 2)
P0153 Slow response of the oxygen sensor 1 (bank 2) for enrichment depletion
P0154 No oxygen sensor output 1 activity (Bank 2)
P0155 Heater of oxygen sensor 1 (bank 2) defective
P0156 The oxygen sensor 2 (bank 2) is defective
P0157 Low oxygen sensor 2 output (Bank 2)
P0158 High oxygen sensor 2 output level (Bank 2)
P0159 Slow response of the oxygen sensor 2 (bank 2) for enrichment depletion
P0160 No oxygen sensor 2 output signal activity (Bank 2)
P0161 Heater of oxygen sensor 2 (bank 2) defective
P0162 The oxygen sensor 3 (bank 2) is defective
P0163 Low oxygen sensor 3 output (Bank 2)
P0164 High oxygen sensor output 3 (Bank 2)
P0165 Slow response of oxygen sensor 3 (bank 2) for enrichment depletion
P0166 No oxygen sensor output 3 activity (Bank 2)

P0167 Heater of oxygen sensor 3 (bank 2) defective
P0171 Too lean mixture (air can be sucked in)
P0172 Too rich mixture
P0173 Fuel leakage from the fuel system of cylinder block # 2
P0174 Cylinder block 2 mix too poor
P0175 Cylinder block 2 mix too rich
P0176 Fuel Composition ejector defective
P0177 Fuel Composition sensor signal out of range
P0178 Low signal level of the CHX sensor (Fuel Composition)
P0179 The high level of the signal of the sensor CHF (Fuel Composition)
P0180 Fuel Temperature Sensor Circuit Fault “A”
P0181 Fuel temperature sensor signal “A” outside the permissible range
P0182 Fuel gauge temperature sensor low “A”
P0183 A high level signal of the fuel temperature sensor “A”
P0185 Fuel Temperature Sensor Circuit Malfunction “B”
P0186 Fuel temperature sensor “B” signal outside the permissible range
P0187 Fuel Temperature Sensor Low “B”
P0188 The high signal level of the fuel temperature sensor “B”
P0190 Fuel Rail Pressure Sensor Circuit Malfunction
P0191 Fuel rail pressure sensor signal out of range
P0192 Low fuel pressure sensor signal in fuel rail
P0193 High Fuel Pressure Sensor Signal
P0194 The intermittent signal of the fuel pressure sensor in the fuel rail
P0195 Engine Oil Temperature Sensor Circuit Malfunction
P0196 Engine oil temperature sensor out of range
P0197 Engine oil temperature sensor low
P0198 High oil temperature sensor signal in engine
P0199 Intermittent Signal of Engine Oil Temperature Sensor
P0200 Injector Control Circuit Malfunction
P0201 Injector No.1 Control Circuit Malfunction
P0202 Injector No.2 Control Circuit Malfunction
P0203 Injector No.3 Control Circuit Malfunction
P0204 Injector No.4 Control Circuit Malfunction
P0205 Injector No.5 Control Circuit Malfunction
P0206 Injector No.6 Control Circuit Malfunction
P0207 Injector No. 7 Control Circuit Malfunction
P0208 Nozzle control circuit fault
P0209 Nozzle control circuit fault # 9
P0210 Nozzle control circuit fault
P0211 Nozzle control circuit fault
P0212 Injector No. 12 Control Circuit Malfunction
P0213 Cold Start Nozzle Control Circuit Malfunction
P0214 Cold Start Nozzle Control Circuit Malfunction
P0215 Engine Shutdown Solenoid Malfunction
P0216 Injection timing control circuit malfunction
P0217 Engine overheating
P0218 Transmission overheat
P0219 Engine Overspeed Condition
P0220 Throttle Position Sensor “B” Malfunction
P0221 Throttle position sensor “B” signal outside the permissible range
P0222 Throttle Position Sensor “B” Low
P0223 Throttle Position Sensor “B” High
P0224 Throttle Position Sensor “B” Intermittent
P0225 Throttle Position Sensor “C” Malfunction
P0226 Throttle position sensor signal outside the permissible range “C”
P0227 Throttle Position Sensor “C” Low
P0228 Throttle Position Sensor High “C”
P0229 Throttle Position Sensor “C” Intermittent
P0230 Fault in the primary control circuit of the gasoline pump (pump control relay)
P0231 Constant low level of the secondary circuit of the petrol pump
P0232 Permanent high level of the secondary circuit of the petrol pump
P0233 Intermediate level of the secondary circuit of the gasoline pump
P0235 Turbocharger pressure sensor circuit “A”
P0236 Turbine sensor signal “A” outside the permissible range
P0237 Turbine sensor “A” signal low
P0238 High signal level from turbine sensor “A”

P0239 Turbocharger pressure sensor circuit “B”
P0240 The signal from the turbine sensor “B” is out of range
P0241 Turbine sensor “B” signal low
P0242 High signal level from the turbine sensor “B”
P0243 Turbine Exhaust Gasket Solenoid Malfunction “A”
P0244 Turbine exhaust gas solenoid valve signal “A” outside of ext. range
P0245 Turbine exhaust gas solenoid valve “A” always open
P0246 Turbine exhaust gas solenoid valve “A” always closed
P0247 Turbine “B” exhaust gas solenoid malfunction
P0248 Turbine exhaust gas solenoid “B” signal outside add. range
P0249 Turbine “B” exhaust gas solenoid valve always open
P0250 Turbine “B” exhaust gas solenoid always closed
P0251 Turbine Injection Pump “A” Malfunction
P0252 Turbine Injection Pump “A” signal of an unacceptable range
P0253 Turbine Injection Pump Low “A”
P0254 Turbine Injection Pump High “A”
P0255 Intermittent signal level of the turbocharger injection pump “A”
P0256 Malfunction of turbocharger injection pump “B”
P0257 Turbine injection pump signal “B” out of range
P0258 Turbine Injection Pump Low Voltage “B”
P0259 Turbine injection pump “B” high level
P0260 Intermittent signal level of the turbocharger injection pump “B”
P0261 Cylinder 1 injector – earth fault
P0262 Cylinder 1 injector – open or short to + 12V
P0263 Cylinder 1 injector – injector driver malfunction
P0264 Cylinder No.2 injector – ground fault
P0265 Injector No.2 cylinder – open or short to + 12V
P0266 Cylinder No.2 injector driver malfunction
P0267 Cylinder No.3 injector – earth fault
P0268 Cylinder No.3 injector – open or short to + 12V
P0269 Cylinder No.3 injector fault
P0270 Cylinder No.4 injector – earth fault
P0271 Cylinder 4 injector – open or short to + 12V
P0272 Cylinder No.4 injector driver malfunction
P0273 Cylinder No.5 injector – earth fault
P0274 Injector No.5 cylinder – open or short to + 12V
P0275 Cylinder Nozzle No.5 – injector driver malfunction
P0276 Cylinder No.6 injector – earth fault
P0277 Cylinder No.6 injector – open or short to + 12V
P0278 Cylinder Nozzle No.6 – Injector Driver Failure
P0279 Cylinder No.7 injector – ground fault
P0280 Injector No.7 cylinder – open or short to + 12V
P0281 Cylinder No.7 injector driver malfunction
P0282 Cylinder No.8 injector – earth fault
P0283 Cylinder No.8 injector – open or short to + 12V
P0284 Cylinder No.8 injector driver malfunction
P0285 Cylinder Nozzle No.9 – Ground fault
P0286 Cylinder No.2 injector – open or short to + 12V
P0287 Cylinder Nozzle No.9 – Injector Driver Failure
P0288 Cylinder Nozzle No.10 – Ground fault
P0289 Cylinder Nozzle No.10 – open or short to + 12V
P0290 Cylinder Nozzle No.10 – Injector Driver Failure
P0291 Cylinder Nozzle No.11 – Ground fault
P0292 Cylinder Injector No.11 – open or short to +12
P0293 Cylinder Nozzle No.11 – Injector Driver Failure
P0294 Cylinder No.12 injector – ground fault
P0295 Cylinder Nozzle 12 – open or short to + 12V
P0296 Cylinder No.12 injector driver malfunction
P0300 Occasional / multiple misfires detected
P0301 Ignition misfires detected in cylinder No. 1
P0302 Misfiring in cylinder No.2 detected
P0303 Ignition misfires detected in cylinder No. 3
P0304 Misfiring in cylinder No.4 detected
P0305 Ignition misfires detected in cylinder No. 5
P0306 Ignition misfires detected in cylinder No. 6
P0307 Misfiring in cylinder No. 7 detected
P0308 Ignition misfires detected in cylinder No. 8
P0309 Ignition misfires detected in cylinder No. 9
P0310 Ignition misfires detected in cylinder No. 10
P0311 Ignition misfires detected in cylinder No. 11
P0312 Ignition misfires detected in cylinder No. 12

P0320 Fault in the ignition distributor circuit
P0321 Ignition distributor signal out of range
P0322 Ignition distributor signal missing
P0323 Intermittent Distributor Switching Signal
P0325 Knock Sensor No.1 Circuit Malfunction
P0326 Knock sensor # 1 is out of range
P0327 Knock sensor No. 1 low
P0328 Detonation sensor # 1 high
P0329 Knock Sensor No.1 Intermittent Signal Level
P0330 Knock Sensor Circuit Malfunction No.2
P0331 Knock sensor signal # 2 out of range
P0332 Knock sensor No. 2 low
P0333 High level of the signal of the knock sensor No.2
P0334 Intermittent Detonation Sensor No.2 Level
P0335 Crankshaft Position Sensor Error “A”
P0336 DPCV error “A” (single tooth failure)
P0337 Low level or short to ground. DPCV “A”
P0338 High level or short circuit to + 12V DCU “A”
P0339 Intermittent DSC signal “A”
P0340 Camshaft Sensor Fault
P0341 Camshaft sensor signal out of range
P0342 Camshaft Sensor Low Signal
P0343 Camshaft Sensor Signal High
P0344 Intermittent Signal Level Level Sensor
P0350 Ignition Coil Primary / Secondary Circuit Malfunction
P0351 Primary / secondary circuit of ignition coil “A”
P0352 Ignition coil primary / secondary circuit fault “B”
P0353 Primary / secondary circuit of ignition coil “C”
P0354 Ignition coil primary / secondary circuit fault “D”
P0355 Primary / secondary circuit of ignition coil “E”
P0356 Ignition coil primary / secondary fault “F”
P0357 Primary / secondary circuit of ignition coil “G”
P0358 Ignition coil primary / secondary circuit fault “H”
P0359 Primary / secondary ignition coil “I”
P0360 Ignition coil primary / secondary circuit fault “J”
P0361 Primary / secondary circuit of ignition coil “K”
P0362 Primary / secondary circuit of ignition coil “L”
P0370 Timer A signal failure
P0371 The number of pulses of the timer signal A is higher than the norm
P0372 The number of pulses of the timer signal A is below the norm
P0373 Unstable signal pulses A timer
P0374 No Timer A signal pulses
P0375 Timer B Timer Error
P0376 The number of pulses of the timer B signal is higher than the norm
P0377 The number of pulses of the B timer signal is below the norm
P0378 Unstable pulses of the B timer signal
P0379 No Timer A Signals
P0380 Fault in glow plug or heating circuit
P0381 Malfunction of glow plug or heating indicator
P0385 Crankshaft Position Sensor Circuit Malfunction “B”
P0386 Crankshaft Position Sensor “B” signal outside reachable range
P0387 Low or short to ground DUKV “B”
P0388 High level or short circuit to + 12V DCU “B”
P0389 Intermittent signal of the crankshaft position sensor “B”
P0400 Defective EGR System
P0401 Inefficiency of the exhaust gas recirculation system
P0402 Excess gas recirculation (OG) system redundancy
P0403 EGR Sensor Circuit Malfunction
P0404 Exhaust Gas Recirculation Sensor Signal Out of Range
P0405 Sensor “A” low of exhaust gas recirculation
P0406 Sensor “A” high of exhaust gas recirculation
P0407 Sensor “B” low of exhaust gas recirculation
P0408 Sensor “B” high signal of the exhaust gas recirculation system
P0410 Secondary air supply system malfunction
P0411 Incorrect flow through the secondary air supply system
P0412 Secondary air system valve failure “A”
P0413 Secondary air supply valve “A” always open
P0414 Secondary air supply valve “A” always closed
P0415 Malfunction of secondary air supply valve “B”

P0416 Secondary air supply valve “B” is always open
P0417 The secondary air supply valve “B” is always closed
P0420 The efficiency of the catalyst system B1 is below the permissible threshold
P0421 The efficiency of heating of catalysts B1 is below the permissible threshold
P0422 The efficiency of the main catalyst B1 is below the permissible threshold
P0423 The efficiency of the catalyst heater B1 is below the permissible threshold
P0424 The temperature of the catalyst heater B1 is below the permissible threshold
P0430 The efficiency of the catalyst system B2 is below the permissible threshold
P0431 The efficiency of heating of catalysts B3 is below the permissible threshold
P0432 The efficiency of the main catalyst B2 is below the permissible threshold
P0433 The efficiency of the catalyst heater B2 is below the permissible threshold
P0434 The temperature of the catalyst heater B2 is below the permissible threshold
P0440 Gasoline vapor recovery system control failure
P0441 Poor purging of gasoline vapor recovery system
P0442 A small leak in a gasoline vapor recovery system
P0443 Gasoline vapor recovery system purge valve circuit fault
P0444 Purge gas purge valve purge valve always open
P0445 Purge gas purge valve purge valve always closed
P0446 Malfunction of control. air valve of the vapor recovery system
P0447 The air valve of the vapor recovery system is always open
P0448 The air valve of the vapor recovery system is always closed
P0450 Gasoline Vapor Pressure Sensor Fault
P0451 Gasoline vapor pressure sensor signal out of range
P0452 Low level signal of vapor pressure sensor Gasoline
P0453 High level signal of the vapor pressure sensor of gasoline
P0454 Intermittent signal level of the petrol vapor pressure sensor
P0455 Large leakage in a gasoline vapor recovery system
P0460 Fuel Level Sensor Circuit Malfunction
P0461 Fuel level sensor signal out of range
P0462 Fuel Level Sensor Low
P0463 Fuel Level Sensor High
P0464 Intermittent signal level of fuel level sensor
P0465 Purge air flow sensor circuit fault
P0466 Purge air flow sensor signal out of range
P0467 Purge air flow sensor low
P0468 High purge air flow sensor signal
P0469 Purge air flow sensor intermittent signal level
P0470 Exhaust Gas Pressure Sensor Fault
P0471 Exhaust gas pressure sensor signal out of range
P0472 Exhaust Gas Pressure Sensor Low
P0473 Exhaust Gas Pressure Sensor High
P0474 Intermittent signal level of the exhaust gas pressure sensor
P0475 Exhaust Pressure Sensor Valve Fault
P0476 Exhaust gas pressure sensor valve signal out of range
P0477 Exhaust Gas Pressure Sensor Low Signal
P0478 Exhaust Gas Pressure Sensor High Signal High
P0479 Intermittent signal level of the exhaust gas pressure sensor valve
P0480 Fan relay control circuit fault
P0500 No vehicle speed sensor signal
P0501 Vehicle speed sensor signal out of range
P0502 Vehicle Signal Speed ​​Sensor Low
P0503 High Vehicle Speed ​​Sensor Signal
P0505 Idle speed controller malfunction
P0506 Idle speed controller malfunction – low speed
P0507 Idle speed controller malfunction – high speed
P0510 Throttle valve end fault
P0520 Oil pressure sensor circuit fault
P0521 Invalid indicator / oil pressure sensor not adjusted
P0522 Oil Pressure Sensor Low Voltage
P0523 Oil Pressure Sensor High Voltage
P0530 Air Conditioning Coolant Pressure Sensor Circuit Malfunction
P0531 Invalid indicator / the A / C coolant pressure sensor is not adjusted
P0532 Air Conditioning Coolant Pressure Sensor Low
P0533 A / C Coolant Level Sensor High
P0534 Air Conditioning Coolant Leak
P0550 Power steering pressure sensor circuit fault
P0551 Invalid indicator / the pressure sensor in the power steering has not been adjusted
P0552 Low indicator of the pressure sensor in the power steering
P0553 High indicator of the pressure sensor in the power steering
P0554 Malfunction of the power steering pressure sensor
P0560 System power supply is below the operating threshold
P0561 System power supply voltage is unstable
P0562 Low System Power Supply
P0563 High Power Supply System
P0565 Cruise control system activation signal malfunction
P0566 Cruise control off switch malfunction
P0567 Cruise control continuation signal failure

P0568 Cruise control system speed setting signal malfunction
P0569 Cruise control system brake signal malfunction
P0570 Cruise control system acceleration malfunction
P0571 C Brake switch circuit A of cruise control system
P0572 Low indicator of cruise control switch A
P0573 High indicator of brake switch A of cruise control system
P0574 Cruise control system malfunction
P0575 Cruise control system malfunction
P0576 Cruise control system malfunction
P0577 Cruise control system malfunction
P0578 Cruise control system malfunction
P0579 Cruise control system malfunction
P0580 Cruise control system malfunction
P0600 Communication failure
P0601 ROM Checksum Error
P0602 Programmable control unit error
P0603 External RAM error
P0604 Internal RAM error
P0605 Error in the memory (ROM) of the control unit
P0606 PCM Processor Malfunction
P0607 Malfunction of the detonation channel
P0608 Sensor fault VSS “A” of the control unit
P0609 Malfunction of the VSS “B” sensor of the control unit
P0620 Malfunction in the generator control circuit
P0621 Malfunction in the lamp circuit “L” of the generator
P0622 Malfunction in the “F” block of the generator
P0650 Malfunction Indicator Lamp Circuit Malfunction (MIL)
P0654 Motor RPM is incorrectly adjusted
P0655 Malfunction in the engine warm-up lamp circuit
P0656 Fuel Level Sensor Circuit Malfunction
P0700 Transmission Control System Malfunction
P0701 Transmission control system out of range
P0702 Electric Transmission Control System
P0703 Malfunction in the brake torque reduction sensor circuit B
P0704 Clutch Sensor Circuit Malfunction
P0705 Transmission Transmission Sensor Circuit Malfunction (PRNDL)
P0706 Wrong indicator / not adjusted transmission sensor
P0707 Low Transmission Sensor
P0708 High Transmission Sensor
P0709 Transmission Sensor Malfunction
P0710 Transmission Fluid Temperature Sensor Circuit Malfunction
P0711 Wrong indicator / temperature sensor of transmission fluid not adjusted
P0712 Transmission Fluid Temperature Sensor Low
P0713 Transmission Fluid Temperature Sensor High
P0714 Transmission Fluid Temperature Sensor Fault
P0715 Malfunction in the turbine speed sensor circuit
P0716 Invalid indicator / turbine speed sensor not adjusted
P0717 No signal from the turbine speed sensor
P0718 Malfunction of the turbine speed sensor
P0719 The low value of the brake torque reduction sensor circuit B
P0720 Malfunction of the shaft speed sensor circuit
P0721 Invalid indicator / the shaft speed sensor is not adjusted
P0722 No signal from the shaft speed sensor
P0723 Malfunction of the shaft speed sensor
P0724 High indicator of brake torque reduction sensor circuit B
P0725 Engine speed sensor circuit fault
P0726 Invalid indicator / engine speed sensor not adjusted
P0727 No signal from engine speed sensor
P0728 Malfunction of the engine speed sensor
P0730 Gearbox incorrectly adjusted
P0731 1 gear is not adjusted correctly
P0732 2 gear set incorrectly
P0733 3 gear is not adjusted correctly
P0734 4 gear is not adjusted correctly
P0735 5 gear is not adjusted correctly
P0736 Rear gear incorrectly adjusted
P0740 Malfunction in the clutch chain
P0741 Clutch is not adjusted correctly
P0742 Clutch is defective
P0743 Damage to clutch electrical circuit
P0744 Malfunction in the clutch chain
P0745 Malfunction in the solenoid pressure circuit
P0746 The pressure solenoid is not adjusted correctly
P0747 Pressure solenoid damaged
P0748 Damage to the electrical circuit of the pressure solenoid
P0749 Pressure Solenoid Malfunction
P0750 Malfunction of A solenoid switch
P0751 The solenoid switch A is not adjusted correctly.
P0752 Damage to solenoid switch A
P0753 Damage to the electrical circuit of the solenoid switch A
P0754 Solenoid A Switch Fault
P0755 Malfunction of solenoid switch B
P0756 B solenoid switch B is not correctly adjusted
P0757 Damage to B solenoid switch

P0758 Damage to the electrical circuit of the solenoid switch B
P0759 Malfunction of solenoid switch B
P0760 Malfunction of solenoid switch C
P0761 The C solenoid switch
P0762 Damage to C solenoid switch
P0763 Damage to the electrical circuit of the solenoid switch C
P0764 Malfunction of C solenoid switch
P0765 Solenoid switch D fault
P0766 The solenoid switch D is not adjusted correctly.
P0767 Damaged solenoid switch D
P0768 Damage to the electrical circuit of the solenoid switch D
P0769 Malfunction of D solenoid switch
P0770 Malfunction of solenoid switch E
P0771 The E solenoid switch
P0772 Damage to E solenoid switch
P0773 Damage to the electrical circuit of the solenoid switch E
P0774 Malfunction of solenoid switch E
P0780 Switch failure
P0781 Fault of 1-2 switches
P0782 Fault 2-3 switches
P0783 Fault 3-4 switches
P0784 Fault of 4-5 switches
P0785 Solenoid fault
P0786 Wrong indicator / not adjusted solenoid
P0787 Low value of the solenoid sensor
P0788 High Solenoid Sensor Value
P0789 Solenoid fault
P0790 Switch circuit fault in normal mode
P0801 Reverse Inhibit System Circuit Malfunction
P0803 Malfunction in the solenoid circuit of the switch 1-4
P0804 Malfunction in the control lamp circuit of switch 1-4
The codes are set by the manufacturers. Depend on the car brand.
P1000 OBD II Monitor does not pass the test
P1001 Key On Engine Running (KOER) Self-Test not able to complete. KOER aborted
P1100 Mass Air Flow (MAF) sensor intermittent
P1101 Mass Air Flow (MAF) sensor out of Self-Test range
P1102 Low resistance of oxygen sensor heater
P1106 High Intake Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
P1107 Low Intake Manifold Absolute Pressure (MAP) Sensor Circuit
P1110 Switch over valve solenoid
P1111 Intake Air Temperature (IAT) Sensor High Voltage
P1112 Switch over valve 1
Low Intake in Intake Air Temperature (IAT) Circuit
P1113 Switch over valve 2
P1114 Coolant Temperature Sensor Circuit Low Voltage (ECT)
P1115 High voltage in the coolant temperature sensor circuit (ECT)
P1116 O2 Sensor heater Circuit (Open)
The engine temperature sensor (ECT) failed the self-test
P1117 Engine Temperature Sensor (ECT) sensor intermittent
P1120 Throttle Position (TP) Sensor out of range low
P1121 Throttle Position (TP) Sensor Circuit High Voltage
P1122 Throttle Position (TP) Sensor Circuit Low Voltage
P1123 Long Term Fuel Trim Additive Air (System too Rich)
P1124 Throttle Position (TP) sensor out of Self -Test range
Long Term Fuel Trim Additive Air (System too Lean
P1125 Throttle position sensor (TP) sensor circuit intermittent
P1127 Heated Oxygen Sensors (HO2Ss)
Long Term Fuel Trim Multiplicative (System too Rich)
P1128 Upstream Heated Oxygen Sensors (HO2Ss) swapped from bank to bank
Long Term Fuel Trim Multiplicative (System too Lean)
P1129 Downstream Heated Oxygen Sensors (HO2Ss) swapped from bank to bank
P1130 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, adaptive fuel at limit (Bank # 1)
P1131 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, sensor indicates lean (Bank # 1))
P1132 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, sensor indicates rich (Bank # 1)
P1133 Sensor 1 HO2S
P1134 HO2S Timer On Timer
P1136 Long Term Fuel Trim Additive Fuel (System too Rich)
P1137 Lack of downstream Heated Oxygen Sensor (HO2S 12) switch, sensor indicates lean (Bank # 1)
Long Term Fuel Trim Additive Fuel (System too Lean)
P1138 Lack of downstream Heated Oxygen Sensor (HO2S 12) switch, sensor indicates rich (Bank # 1)
P1140 Invalid load signal
P1150 Lack of upstream Heated Oxygen Sensor (HO2S 21) switch, adaptive fuel at limit (Bank # 2)
P1151 Lack of upstream Heated Oxygen Sensor (HO2S 21) switch, sensor indicates lean (Bank # 2)
P1152 Lack of upstream Heated Oxygen Sensor (HO2S 21) switch, sensor indicates rich (Bank # 2)
P1157 Lack of downstream Heated Oxygen Sensor (HO2S 22) switch, sensor indicates lean (Bank # 2)
P1158 Lack of downstream Heaven Oxygen Sensor (HO2S 22) switch, sensor indicates rich (Bank # 2)
P1171 Low level of CO-potentiometer signal
P1172 High level of CO-potentiometer signal
P1174 02 Sensor 1 Bank 1 (period monitoring)
P1176 02 Sensor 1 Bank 1 (tv monitoring)
P1200 Injector control circuit

P1220 Series Throttle Control System malfunction
P1224 Throttle Position Sensor B (TP-B) out of Self – Test range
P1229 Power Supply Relay Primary Circuit Voltage High
P1230 Power Supply Relay Secondary Circuit Voltage Low
P1231 Fuel pump relay circuit low with high speed pump on
P1232 Low speed Fuel Pump primary circuit malfunction
P1233 Fuel Pump Driver Module disabled or offline
P1234 Fuel Pump Driver Module disabled or offline
P1235 Fuel Pump control out of Self – Test range
P1236 Fuel Pump control out of Self – Test range
Can not read the crankshaft position sensor (CKP)
P1237 Fuel Pump secondary circuit malfunction
P1238 Fuel Pump secondary circuit malfunction
P1260 Attempted theft – start blocked
P1270 Engine RPM or vehicle speed limiter reached
P1285 Cylinder Temperature Sensor Malfunction
P1288 Temperature sensor cylinder head (CHT) sensor out of Self – Test range
P1289 Temperature sensor cylinder head (CHT) sensor circuit low input
P1290 Temperature sensor cylinder head (CHT) sensor circuit high input
P1299 Engine over temperature condition
P1326 Knock Control Maximum Spark Limit Cylinder 1
P1327 Knock Control Maximum Spark Limit Cylinder 2
P1328 Knock Control Maximum Spark Limit Cylinder 3
P1329 Knock Control Maximum Spark Limit Cylinder 4
P1350 Spare Monitoring Line
P1351 Ignition Diagnostic Monitor (IDM) circuit input malfunction
P1356 PIPS occurred while IDM
P1357 Ignition Diagnostic Monitor (IDM) pulse width not defined
P1358 Ignition Diagnostic Monitor (IDM) signal out of Self – Test range
P1359 Spark output circuit malfunction
P1361 Ignition Control Circuit Low Voltage (IC)
P1374 Changing the frequency of the crankshaft position sensor (CKP)
P1380 Fault in the system – data can not be read
P1386 Knock control Testpulse
P1390 Octane Adjust (OCT ADJ) out of Self – Test range
P1400 Differential Pressure Feedback EGR (DPFE) sensor circuit low voltage detected
P1401 Differential Pressure Feedback EGR (DPFE) sensor circuit high voltage detected
P1405 Differential Pressure Feedback EGR (DPFE) sensor upstream hose off or plugged
P1406 Differential Pressure Feedback EGR (DPFE) sensor downstream hose off or plugge
Adjusting the EGR sensor
P1408 Exhaust Gas Recirculation (EGR) flow out of Self – Test range
P1409 Canister purge valve power stage (malfunction)
Electronic Vacuum Regulator (EVR) control circuit malfunction
P1410 Canister purge valve power stage (high)
Secondary air pump relay
P1411 Secondary Air Injection system failed downstream flow detected
P1413 Secondary Air Injection system monitor circuit low voltage
P1414 Secondary Air Injection system monitor circuit high voltage
P1425 Canister purge valve power stage (low)
Purge purge valve control circuit, ground fault
P1426 Adsorber purge valve control circuit, open
P1441 Consumption in the fuel vapor system (EVAP) for the Chevrolet car only
Consumption in the fuel vapor diverting system (EVAP) only for the Oldsmobile
P1442 Evaporative emission control system
P1443 Evaporative emission control system – vacuum system, purge control solenoid or vapor management valve malfunction
P1444 Purge Flow (PF) Sensor circuit low input
P1445 Purge Flow (PF) Sensor circuit high input
P1449 Evaporative emission control system unable to hold vacuum (Probe)
P1450 Unable to bleed up fuel tank vacuum
P1452 Unable to bleed up fuel tank vacuum
P1455 Evaporative emission control system control leak detected (gross leak)
P1460 Wide Open Throttle Air Conditioning Cutoff (WAC) circuit malfunction
P1461 Air Conditioning Pressure (ACP) sensor circuit low input
P1462 Air Conditioning Pressure (ACP) sensor circuit high input
P1463 Air Conditioning Pressure (ACP) sensor insufficient pressure change
P1464 Air Condition (A / C) demand out of Self – Test range
P1469 Low air conditioning cycling period

P1473 Fan secondary high with fan (s) off
P1474 Low Fan Control primary circuit malfunction
P1479 High Fan Control primary circuit malfunction
P1480 Fan secondary low with low fan on
P1481 Fan secondary low with high fan on
P1483 Power to fan circuit over current
P1484 Open power ground to Variable Load Control Module (VLCM)
P1500 Fuel Pump Relay Circuit Fault
P1501 Immobilizer – no code or wrong code
Fuel pump relay – earth fault
P1502 Fuel pump relay – short circuit to + 12V
Immobilizer – no signal
P1503 Immobilizer – Wrong signal
P1504 Idle Air Control (IAC) circuit malfunction
P1505 Idle Air Control (IAC) system at adaptive clip
P1506 Idle Air Control (IAC) overspeed error
P1507 Idle Air Control (IAC) under speed error
P1509 Idling speed control circuit, overload
P1512 Intake Manifold Runner Control (IMRC) malfunction (Bank # 1 stuck closed)
P1513 Intake Manifold Runner Control (IMRC) malfunction (Bank # 2 stuck closed)
Idle speed control circuit – ground fault
P1514 Idling speed control circuit – open
P1516 Intake Manifold Runner Control (IMRC) input error (Bank # 1)
P1517 Intake Manifold Runner Control (IMRC) input error (Bank # 2)
P1518 Intake Manifold Runner Control (IMRC) malfunction (stuck open)
P1519 Intake Manifold Runner Control (IMRC) malfunction (stuck closed)
P1520 Intake Manifold Runner Control (IMRC) circuit malfunction
P1530 ​​Air Condition (A / C) clutch circuit malfunction
P1537 Intake Manifold Runner Control (IMRC) malfunction (Bank # 1 stuck open)
P1538 Intake Manifold Runner Control (IMRC) malfunction (Bank # 2 stuck open)
P1539 Power to Air condition (A / C) clutch circuit overcurrent
P1541 The control circuit of the petrol pump relay, an open
P1550 Power steering Pressure (PSP) sensor out of Self – Test range
P1554 Cruise control feedback loop
P1570 Immobilizer chain failure
P1600 No connection to immobilizer
Reprogram or Replace Electronic Control Unit (ECM)
P1601 ECM Box Temperature High
P1602 Controller power failure
Knock control module
P1603 Error EEPROM
P1604 Knock control device
P1605 Knock control device
P1606 Knock control device
P1612 CPU reset error
P1619 Electrical Thermostat Control powerstage (too high)
P1620 ROM error
Electrical Thermostat Control powerstage (too low)
P1621 RAM error
P1622 EEPROM error
Electrical Thermostat Control powerstage (Range / Perfomance)
P1625 B (+) supply to ariable Load Control Module (VCLM) fan circuit malfunction
P1626 B (+) supply to Variable Load Control Module (VCLM) Air Condition (A / C) circuit malfunctio
Loss of signal from the fuel system
P1629 There is no signal from the fuel system
P1635 Chain 5 volts, only for Oldsmobile
5 Volt Chain, Chevrolet only
P1639 2 circuit 5 volts, only for car Oldsmobile
2 circuit 5 volts, only for car Chevrolet
P1640 Knock control or all-wheel drive module
P1641 Malfunction Indicator Lamp Test Circuit (MIL)
P1650 Power Steering Pressure (PSP) switch out of Self – Test range
P1651 Power Steering Pressure (PSP) switch input malfunction
Control circuit 1 of the fan relay, only for the Oldsmobile
Control circuit 1 of the fan relay, only for the Chevrolet car

P1652 Control circuit 2 fan relay, only for Oldsmobile
Control circuit 2 fan relay, only for Chevrolet car
P1654 A / C Relay Control Circuit (A / C)
P1655 Evaporative Fuel System Solenoid Control Circuit (EVAP), only for Oldsmobile
Pilot control circuit of the EVAP solenoid, only for the Chevrolet
P1662 Cruise Control System Circuit
P1663 Recharge warning lamp
Oil Change Warning Lamp
P1672 Low oil level warning lamp
P1675 Pilot Fuel Solenoid Solenoid Control Circuit (EVAP)
P1689 Error memory error
P1690 Lamp diagnosis error
MIL-on requestsignal (Malfunction)
P1693 MIL-on requestsignal (High)
P1701 Reverse engagement error
P1703 Brake On / Off (BOO) switch out of Self – Test range
P1705 Transmission Range (TR) Sensor out of Self – Test range
P1709 Park or Neutral Position (PNP) switch is not indicating neutral during KOEO Self – Test
P1711 Transmission Fluid Temperature (TFT) sensor out of Self – Test range
P1728 Transmission slip fault

P1729 4×4 Low switch error
P1740 Torque Control unit
P1741 Torque Converter Clutch (TCC) control error
P1742 Torque Converter Clutch (TCC) solenoid failed on (turns on MIL)
P1743 Torque Converter Clutch (TCC) solenoid failed on (turns on TCIL)
P1744 Torque Converter Clutch (TCC) system mechanically stuck in off position
P1746 Electronic Pressure Control (EPC) solenoid open circuit (low input)
P1747 Electronic Pressure Control (EPC) solenoid short circuit (high input)
P1749 Electronic Pressure Control (EPC) solenoid failed low
P1751 Shift Solenoid # 1 (SS1) performance
P1754 Coast Clutch Solenoid (CCS) circuit malfunction
P1756 Shift Solenoid # 2 (SS2) performance
P1761 Shift Solenoid # 3 (SS3) performance
P1780 Transmission Control Switch (TCS) circuit out of Self – Test range
P1781 4×4 Low switch out of Self – Test range
P1783 Transmission over temperature condition
P1788 3-2 Timing / Coast Clutch Solenoid (3-2 / CCS) circuit open
P1789 3-2 Timing / Coast Clutch Solenoid (3-2 / CCS) circuit shorted
U1021 SCP indicating the lack of Air Condition (A / C) clutch status response
U1039 SCP ​​indicating the vehicle speed signal missing or incorrect
U1051 SCP indicating the brake switch signal missing or incorrect
U1073 SCP indicating the lack of engine coolant fan status response
U1131 SCP indicating the lack of Fuel Pump status response
U1135 SCP indicating the ignition switch signal missing or incorrect
U1256 SCP indicating a communications error
U1451 Lack of response from Passive Anti-Theft system (PATS) module – engine disabled