Diagnostic Trouble Code Identification: Notes
NOTE:
When connecting test equipment, disconnect Engine Control Module (ECM) connector "D" first. When reconnecting connectors, connect connector "D" last. See ECM CONNECTOR IDENTIFICATION .
Use DTC identification to identify possible cause, see DIAGNOSTIC TROUBLE CODE LIST . Proceed to indicated area under TEST STEP/REMEDY column. Before proceeding with diagnostic testing, see HOW TO READ DIAGNOSTIC INFORMATION . Some diagnostic information is identified by chassis/model number. See MODEL IDENTIFICATION . To further understand DTC diagnosis and/or diagnose intermittent failures, see DTC DESCRIPTION . If vehicle is experiencing a communication failure (no communication at all), perform FUEL INJECTION SYSTEM TESTS , IGNITION SYSTEM TESTS , ELECTRONIC ACCELERATOR TESTS , and CRUISE CONTROL TESTS entirely.
NOTE:
DTC IDENTIFICATION FOR CYLINDER SHUTOFF only applies to CL500 equipped with optional cylinder shutoff. See CYLINDER SHUTOFF TESTS .
DIAGNOSTIC TROUBLE CODE LIST
| DTC | Definition | Test Step/Remedy |
| P0100 | MAF Circuit Malfunction | 4, Fuel Injection System Test (Steps 3.0-4.0) |
| P0105 Only USA vehicles with cylinder shutoff |
MAP Circuit Malfunction | 6, see Fuel Injection System Test (Step 6.0) |
| P0110 | IAT Circuit Malfunction | 5, see FUEL INJECTION SYSTEM TEST (STEPS 5.0 & 5.1) |
| P0115 | ECT Circuit Malfunction | 8, see FUEL INJECTION SYSTEM TEST (STEPS 8.0 & 8.1) |
| P0120 | Throttle Position Circuit Malfunction | 3, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) |
| P0130 | O2S-1 Circuit Malfunction | 11, see Fuel Injection System Test (Steps 11.0-12.0) |
| P0133 | O2S-1 Circuit Slow Response | 11, see Fuel Injection System Test (Steps 11.0-12.0) |
| P0135 | O2S-1 Heater Circuit Malfunction | 13, see FUEL INJECTION SYSTEM TEST (STEPS 13.0 & 14.0) |
| P0136 Only USA |
O2S-2 Circuit Malfunction | 15, see FUEL INJECTION SYSTEM TEST (STEPS 15.0 & 16.0) |
| P0140 | O2S-2 Heater Circuit Malfunction | 11, see Fuel Injection System Test (Steps 11.0-12.0) |
| P0141 Only USA |
O2S-2 Heater Circuit Malfunction | 17, see FUEL INJECTION SYSTEM TEST (STEPS 17.0 & 18.0) |
| P0150 | O2S-1 Circuit Malfunction | 10, see Fuel Injection System Test (Steps 8.2-10.0) |
| P0153 | O2S-1 Circuit Slow Response | 10, see Fuel Injection System Test (Steps 8.2-10.0) |
| P0155 | O2S-2 Circuit Malfunction | 12, see Fuel Injection System Test (Steps 11.0-12.0) |
| P0156 Only USA |
O2S-2 Circuit Malfunction | 14, see FUEL INJECTION SYSTEM TEST (STEPS 13.0 & 14.0) |
| P0160 | O2S Heater Circuit Malfunction | 10, see Fuel Injection System Test (Steps 8.2-10.0) |
| P0161 Only USA |
O2S-2 Heater Circuit Malfunction | 16, see FUEL INJECTION SYSTEM TEST (STEPS 15.0 & 16.0) |
| P0170 | Fuel Trim Malfunction | Intake air leak, injectors, diaphragm pressure regulator, engine wear |
| P0173 | Fuel Trim Malfunction | Intake air leak, injectors, diaphragm pressure regulator, engine wear |
| P0201 | Injector Circuit Malfunction Cyl. 1 | 18, see FUEL INJECTION SYSTEM TEST (STEPS 17.0 & 18.0) |
| P0202 | Injector Circuit Malfunction Cyl. 2 | 19, see Fuel Injection System Test (Step 19.0) |
| P0203 | Injector Circuit Malfunction Cyl. 3 | 20, see Fuel Injection System Test (Step 20.0) |
| P0204 | Injector Circuit Malfunction Cyl. 4 | 21, see Fuel Injection System Test (Step 21.0) |
| P0205 | Injector Circuit Malfunction Cyl. 5 | 22, see Fuel Injection System Test (Step 22.0) |
| P0206 | Injector Circuit Malfunction Cyl. 6 | 23, see Fuel Injection System Test (Step 23.0) |
| P0207 | Injector Circuit Malfunction Cyl. 7 | 24, see Fuel Injection System Test (Step 24.0) |
| P0208 | Injector Circuit Malfunction Cyl. 8 | 25, see Fuel Injection System Test (Step 25.0) |
| P0300 | Random Misfire Detected | 13-21, see Ignition System Test (Steps 13.0-14.0) - Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0301 | Cylinder 1 Misfire Detected | 13, see Ignition System Test (Steps 13.0-14.0) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0302 | Cylinder 2 Misfire Detected | 14, see Ignition System Test (Steps 13.0-14.0) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0303 | Cylinder 3 Misfire Detected | 15, see Ignition System Test (Steps 14.1-15.1) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0304 | Cylinder 4 Misfire Detected | 16, see Ignition System Test (Steps 16.0-17.0) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0305 | Cylinder 5 Misfire Detected | 17, see Ignition System Test (Steps 16.0-17.0) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0306 | Cylinder 6 Misfire Detected | 18, see Ignition System Test (Steps 17.1-18.1) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0307 | Cylinder 7 Misfire Detected | 19, see Ignition System Test (Steps 19.0-19.1) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0308 | Cylinder 8 Misfire Detected | 20, see Ignition System Test (Steps 20.0-20.1) ; 21, see Ignition System Test (Step 21.0) 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) Compression pressure |
| P0325 | Right KS 1 Circuit Malfunction | Wiring, connector, A16g1 |
| P0330 | Left KS 2 Circuit Malfunction | Wiring, connector, A16g2 |
| P0335 | CKP Sensor Circuit Malfunction | 11, see IGNITION SYSTEM TEST (STEPS 11.0 & 11.1) |
| P0341 | CMP Sensor Circuit Range/Performance | 12, see IGNITION SYSTEM TEST (STEPS 12.0 & 12.1) |
| P0370 | Angle Deviation Between Camshaft & Crankshaft | Check basic adjustment of camshaft |
| P0400 | Exhaust Gas Recirculation Flow Malfunction | 29, see Fuel Injection System Test (Step 29.0) |
| P0410 Only USA |
Air Injection System Malfunction | 26-28, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) & Fuel Injection System Test (Step 28.0) |
| P0422 | TWC (Right) Efficiency Below Threshold | Replace Right TWC |
| P0432 | TWC (Left) Efficiency Below Threshold | Replace left TWC |
| P0440 | EVAP System Malfunction | 32 & 33, see FUEL INJECTION SYSTEM TEST (STEPS 32.0 & 33.0) |
| P0441 | EVAP System Malfunction (Leak) - Logic Chain | 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) ; 32, see FUEL INJECTION SYSTEM TEST (STEPS 32.0 & 33.0) |
| P0442 | EVAP System Leak Detected (Small Leak) | 33, see FUEL INJECTION SYSTEM TEST (STEPS 32.0 & 33.0) |
| P0443 | EVAP System Purge Control Valve Circuit Malfunction | 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) |
| P0446 Only USA |
EVAP System Vent Control Malfunction |
A. Activated charcoal canister shut-off valve (Y58/4) 34 & 35, see Fuel Injection System Test (Steps 34.0-35.1) B. End stage activated charcoal canister shut-off valve (Y58/4) within N3/10 N3/10 |
| P0450 Only USA |
EVAP System Leak Detected (Large Leak) | A. Fuel tank pressure sensor (B4/3) electrical fault 35, see Fuel Injection System Test (Steps 34.0-35.1) B. Fuel tank pressure sensor (B4/3) electrical fluctuations Charcoal canister plugged |
| P0455 Only USA |
EVAP System Leak Detected (Large Leak) | EVAP system, large leak 33, see FUEL INJECTION SYSTEM TEST (STEPS 32.0 & 33.0) Fuel tank pressure sensor (B4/3) (voltage supply) 35, see Fuel Injection System Test (Steps 34.0-35.1) |
| P0460 | Fuel Level Sensor Circuit Low Input | Fill fuel tank |
| P0500 | VSS Sensor Malfunction | Test ASR/ESP. See TRACTION CONTROL in BRAKES |
| P0507 | ISC RPM Higher Than Expected | 1-3, see Electronic Accelerator Test (Steps 1.0-2.0) & ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) |
| P0560 | System Voltage Malfunction | 1 & 2, see Fuel Injection System Test (Steps 1.0-1.2) & Fuel Injection System Test (Steps 2.0-2.2) |
| P0565 | Cruise Control Switch | 1, see CRUISE CONTROL TESTS |
| P0600 | Serial Communication Link Malfunction | 36, see Fuel Injection System Test (Steps 36.0-36.2) |
| P0604 | Internal Control Module Random Access Memory (RAM) Error | N3/10 |
| P0605 | Internal Control Module Read Only Memory (ROM) Error | N3/10 |
| P0700 | Transmission Control System Malfunction, Gear Unplausi, Transmission Leak, Command Sleeve Stuck In Pressure Pos. | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0702 | Transmission Control System Electrical, Voltage Supply To Solenoid Valves | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0715 | Input/Turbine Speed Sensor Circuit Malfunction, RPM Sensor Voltage Supply & Function | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0720 | Output Speed Sensor Circuit Malfunction, CAN Fault Recognition | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0730 | Incorrect Gear Ratio, Ratio Comparison Negative (Numerous) | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0740 | Torque Converter Clutch Circuit Malfunction | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0743 | Torque Converter Clutch Circuit Electrical | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0748 | Pressure Control Solenoid Electrical, Pressure Control Valve Modulation Press., Pressure Control Valve Shift Pressure | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0753 | Shift Solenoid A Electrical, 1-2/4-5 Solenoid Shift Valve | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0758 | Shift Solenoid B Electrical, 2-3 Solenoid Shift Valve | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0763 | Shift Solenoid C Electrical | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P0801 | Engine/Climate Control Electric Cooling Fan Malfunction | 38, see Fuel Injection System Test (Steps 38.0-40.0) |
| P0802 | Resonance Intake Manifold Switchover Valve Malfunction | 30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) |
| P0809 | Angle Deviation Between Camshaft & Crankshaft | Check basic adjustment of camshaft |
| P0811 | CAN From Electronic Ignition Lock | 36, see Fuel Injection System Test (Steps 36.0-36.2) |
| P1031 | O2 Sensor (G3/3, G3/4) Reversed | Check proper connection of O2 sensors in ETM |
| P1177 | Oil Sensor (level, temperature, quality) (B40) Oil temperature implausible | 37, see FUEL INJECTION SYSTEM TEST (STEPS 37.0 & 31.1) |
| P1178 | Oil Sensor (level, temperature, quality) (B40) Oil level implausible | 37, see FUEL INJECTION SYSTEM TEST (STEPS 37.0 & 31.1) |
| P1179 | Oil Sensor (level, temperature, quality) (B40) Oil quality implausible | 37, see FUEL INJECTION SYSTEM TEST (STEPS 37.0 & 31.1) |
| P1180 | Oil Sensor (level, temperature, quality) (B40) Oil temperature too high | 37, see FUEL INJECTION SYSTEM TEST (STEPS 37.0 & 31.1) |
| P1181 | Engine/Climate Control Electric Cooling Fan | 38, see Fuel Injection System Test (Steps 38.0-40.0) |
| P1185 | Oil Sensor (level, temperature, quality) (B40) water in oil | 37, see FUEL INJECTION SYSTEM TEST (STEPS 37.0 & 31.1) |
| P1186 | Fuel Safety Shut Off Recognized | 3 & 4, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) & ELECTRONIC ACCELERATOR TEST (STEPS 4.0 & 5.0) |
| P1225 | Resonance Intake Manifold Switchover Valve Malfunction | 30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) |
| P1233 | EA/CC/ISC Actuator (M16/6) Icing Problem | Actuator |
| P1386 | Knock Sensor Control From ECM (N3/10) At End Stop | Increased knock tendency due to bad fuel, carbon in combustion chamber or mechanical damage |
| P1400 | EGR Valve Vacuum Transducer | 29, see Fuel Injection System Test (Step 29.0) |
| P1420 Only USA |
AIR Pump Switchover Valve | 27, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) |
| P1453 Only USA |
AIR Relay Module, AIR Pump | 26, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) |
| P1491 | Refrigerant pressure in A/C system too high | Check automatic A/C system |
| P1542 | Pedal Value Sensor | 1 & 2, see Electronic Accelerator Test (Steps 1.0-2.0) |
| P1570 | CAN Signal From DAS Control Module To Engine Control Module | A. Start attempted with "locked" DAS User Error B. CAN signal from DAS control module (N54/1) to engine control module (N3/10) interrupted Check operation of DAS C. Engine control module (ME-SFI) and DAS control module are not compatible Step 36, see Fuel Injection System Test (Steps 36.0-36.2) , check control modules and part no. |
| P1580 | EA/CC/ISC Actuator (M16/1) | 3 & 4, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) & ELECTRONIC ACCELERATOR TEST (STEPS 4.0 & 5.0) |
| P1584 | Stop Lamp Switch | Test ETS/ASR. See TRACTION CONTROL in BRAKES |
| P1603 | CAN From EIS | 36, see Fuel Injection System Test (Steps 36.0-36.2) |
| P1605 | - | Test ETS/ASR. See TRACTION CONTROL in BRAKES |
| P1642 | Engine Control Module | Check engine control module for correct version code |
| P1644 | Transmission version cannot be checked due to low voltage of transmission control module (N15/3) | See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES |
| P1681 | Crash Signal Unplausible | 40, see Fuel Injection System Test (Steps 38.0-40.0) |
| P1747 | CAN Signal From ETC | A. CAN failure: Transmission protection malfunction from transmission control module (N15/3) See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES B. CAN failure: Instrument cluster Test instrument cluster (A1) |
| P0520 | Cylinder Shutoff Oil Pressure Sensor Fault Code Description |
See DTC P0520 Test |
| P1183 | Cylinder Shutoff Valve For Right Bank Of Cylinders (Y80), Fault Code Description | See DTC P1183 & P1184 Test |
| P1184 | Cylinder Shutoff Valve For Left Bank Of Cylinders (Y81), Fault Code Description | See DTC P1183 & P1184 Test |
| P1355 | Cylinder Shutoff Valve For Right Bank Of Cylinders (Y80), Fault Code Description | See DTC P1355 & P1356 Test |
| P1356 | Cylinder Shutoff Valve For Left Bank Of Cylinders (Y81), Fault Code Description | See DTC P1355 & P1356 Test |
| P1357 | Cylinder Shutoff ON: No. 2, 3, 5 Or 8 Cylinder Inlet Valve Still Being Activated, Fault Code Description | See DTC P1357, P1358, P1359, P1360 & P1361 Test |
| P1358 | Cylinder Shutoff OFF: No. 5 Cylinder Outlet Valve Not Being Activated, Fault Code Description | See DTC P1357, P1358, P1359, P1360 & P1361 Test |
| P1359 | Cylinder Shutoff OFF: No. 2 Cylinder Outlet Valve Not Being Activated, Fault Code Description | See DTC P1357, P1358, P1359, P1360 & P1361 Test |
| P1360 | Cylinder Shutoff OFF: No. 3 Cylinder Outlet Valve Not Being Activated, Fault Code Description | See DTC P1357, P1358, P1359, P1360 & P1361 Test |
| P1361 | Cylinder Shutoff OFF: No. 8 Cylinder Outlet Valve Not Being Activated, Fault Code Description | See DTC P1357, P1358, P1359, P1360 & P1361 Test |
| P1366 | Exhaust Valve Changeover Valve, Fault Code Description | See DTC P1366 Test |
| P1380 | A Cylinder Inlet Valve Is Not Being Activated With Cylinder Shutoff OFF, Fault Code Description | See DTC P1380 Test |
| P1666 | Cylinder Shutoff Valve Opens With Cylinder Shutoff ON, Fault Code Description | See DTC P1666 Test |