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Diagnostic Trouble Code Identification: Notes

NOTE: Diagnostic information applies to 1998-2000 models with 2.8L and 3.2L engine (No. 112), equipped with Motor Electronics Sequential Fuel Injection (ME-SFI).
NOTE: Cruise control testing is not available.
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 list to identify possible cause, then 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  in entirety.

DIAGNOSTIC TROUBLE CODE LIST

DTC Definition Test Step/Remedy
P0100 MAF Circuit Malfunction 4, see Fuel Injection System Test (Steps 4.0-4.2) 
P0105 MAP Circuit Malfunction 6, see FUEL INJECTION SYSTEM TEST (STEPS 5.1 & 6.0) 
P0110 IAT Circuit Malfunction 5, see FUEL INJECTION SYSTEM TEST (STEPS 4.3 & 5.0) 
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 2.1-3.1) 
P0130 O2S-1 Circuit Malfunction 11, see Fuel Injection System Test (Steps 10.0-12.0) 
P0133 O2S-1 Circuit Slow Response 11, see Fuel Injection System Test (Steps 10.0-12.0) 
P0135 O2S-1 Heater Circuit Malfunction 13, see FUEL INJECTION SYSTEM TEST (STEPS 13.0 & 14.0) 
P0136
Only USA
O2S-2 Circuit Malfunction 13, see FUEL INJECTION SYSTEM TEST (STEPS 13.0 & 14.0) 
P0140 O2S-1 Circuit Malfunction 11, see Fuel Injection System Test (Steps 10.0-12.0) 
P0141
Only USA
O2S-2 Heater Circuit Malfunction 17, see Fuel Injection System Test (Step 17.0) 
P0150 O2S-1 Circuit Malfunction 10, see Fuel Injection System Test (Steps 10.0-12.0) 
P0153 O2S-1 Circuit Slow Response 10, see Fuel Injection System Test (Steps 10.0-12.0) 
P0155 O2S-2 Heater Circuit Malfunction 12, see Fuel Injection System Test (Steps 10.0-12.0) 
P0156
Only USA
O2S-2 Circuit Malfunction 14, see FUEL INJECTION SYSTEM TEST (STEPS 13.0 & 14.0) 
P0160 O2S-2 Heater Circuit Malfunction 10, see Fuel Injection System Test (Steps 10.0-12.0) 
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 (Step 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) 
P0300 Random Misfire Detected 11-17, see Ignition System Test (Steps 11.0-12.0)  - Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0301 Cylinder 1 Misfire Detected 11, see Ignition System Test (Steps 11.0-12.0) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0302 Cylinder 2 Misfire Detected 12, see Ignition System Test (Steps 11.0-12.0) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0303 Cylinder 3 Misfire Detected 13, see Ignition System Test (Steps 12.1-13.1) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0304 Cylinder 4 Misfire Detected 14, see Ignition System Test (Steps 14.0-15.0) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0305 Cylinder 5 Misfire Detected 15, see Ignition System Test (Steps 14.0-15.0) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0306 Cylinder 6 Misfire Detected 16, see Ignition System Test (Steps 15.1-16.1) ; 17, see Ignition System Test (Step 17.0) 
1 & 2, see FUEL INJECTOR TESTS 
Compression Pressure
P0325 KS 1 Circuit Malfunction Wiring, connector, A16g1
P0330 KS 2 Circuit Malfunction Wiring, connector, A16g2
P0335 CKP Sensor Circuit Malfunction 9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
P0341 CMP Sensor Circuit Range/Performance 10, see IGNITION SYSTEM TEST (STEPS 10.0 & 10.1) 
P0370 Angle Deviation Between Camshaft & Crankshaft Check basic adjustment of camshaft
P0400 Exhaust Gas Recirculation Flow Malfunction 27, see Fuel Injection System Test (Step 27.0) 
P0410
Only USA
Air Injection System Malfunction 24-26, see FUEL INJECTION SYSTEM TEST (STEPS 24.0 & 25.0)  & Fuel Injection System Test (Step 26.0) 
P0422 TWC Efficiency Below Threshold Replace TWC
P0432 TWC Efficiency Below Threshold Replace TWC
P0440
Only USA
EVAP System Malfunction 30 & 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) 
P0441
Only USA
EVAP System Malfunction (Function) 29, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) ; 30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) 
P0442
Only USA
EVAP System Leak Detected (Small Leak) 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) 
P0443 EVAP System Purge Control Valve Circuit Malfunction 29, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0446
Only USA
EVAP System Vent Control Malfunction A. Activated charcoal canister shut-off valve (Y58/4) (logic chain)
32 & 33, see Fuel Injection System Test (Steps 32.0-33.1) 
B. End stage activated charcoal canister shut-off valve (Y58/4)
N3/10
P0450
Only USA
EVAP System Pressure Sensor Malfunction A. Fuel tank pressure sensor (B4/3) electrical fault
33, see Fuel Injection System Test (Steps 32.0-33.1) 
B. Fuel tank pressure sensor (B4/3) electrical fluctuations
Charcoal canister plugged
P0455 EVAP System Leak Detected (Large Leak) EVAP system, large leak
31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 31.0) 
Fuel tank pressure sensor (B4/3) (voltage supply)
33, see Fuel Injection System Test (Steps 32.0-33.1) 
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 2.1-3.1) 
P0560 System Voltage Malfunction 1 & 2, see FUEL INJECTION SYSTEM TEST (STEPS 1.0 & 1.1)  & Fuel Injection System Test (Steps 1.2-2.2) 
P0565 Cruise Control Switch N/A
P0600 Serial Communication Link Malfunction 34, see Fuel Injection System Test (Steps 34.0-34.2) 
P0604 Internal Control Module Random Access Memory (RAM) Error N3/10
P0605 Internal Control Module Rear Only (ROM) Error N3/10
P0700 Transmission Control System Malfunction, Gear Implausible. Or Transmission Leak, command Valve Sticks In Pressure Position See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0702 Transmission Control System Electrical, Transmission Control Module Solenoid Valves, Voltage Supply See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0715 Input/Turbine Speed Sensor Circuit Malfunction, RPM Sensor Function See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0720 Output Speed Sensor Circuit Malfunction, (CAN Fault) See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0730 Incorrect Gear Ratio See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0740 Torque Converter Lock-Up 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, Modulating Press. Reg. Solenoid Valve, Shift Pressure Reg. Solenoid Valve See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0753 Shift Solenoid A Electrical 1-2/4-5 Solenoid Valve See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0758 Shift Solenoid B Electrical 2-3 Shift Solenoid Valve See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0763 Shift Solenoid C Electrical 3-4 Shift Solenoid Valve See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0801 Engine/Climate Control Electric Cooling Fan Malfunction 36, see Fuel Injection System Test (Steps 36.0-38.0) 
P0802 Resonance Intake Manifold Switchover Valve Malfunction 28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0809 Angle Deviation Between Camshaft & Crankshaft Check basic adjustment of camshaft
P0811 CAN From Electronic Ignition Lock 34, see Fuel Injection System Test (Steps 34.0-34.2) 
P1031 O2 Sensor (G3/3, G3/4) Reversed Check proper connection of O2 sensors in ETM
P1177 Oil Sensor 35, see FUEL INJECTION SYSTEM TEST (STEPS 35.0 & 35.1) 
P1178 Oil Sensor 35, see FUEL INJECTION SYSTEM TEST (STEPS 35.0 & 35.1) 
P1179 Oil Sensor 35, see FUEL INJECTION SYSTEM TEST (STEPS 35.0 & 35.1) 
P1180 Oil Sensor 35, see FUEL INJECTION SYSTEM TEST (STEPS 35.0 & 35.1) 
P1181 Engine/Climate Control Electric Cooling Fan 36, see Fuel Injection System Test (Steps 36.0-38.0) 
P1185 Oil Sensor 35, see FUEL INJECTION SYSTEM TEST (STEPS 35.0 & 35.1) 
P1186 Fuel Safety Shut Off Recognized 3 & 4, see Electronic Accelerator Test (Steps 2.1-3.1)  & Electronic Accelerator Test (Steps 4.0-6.0) 
EA/CC/ISC actuator (M16/6) sticks or jammed, check intake system for residue.
P1225 Resonance Intake Manifold Switchover Valve 28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P1223 Throttle Valve Setting Element Replace element
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 27, see Fuel Injection System Test (Step 27.0) 
P1420
Only USA
AIR Pump Switchover Valve 25, see FUEL INJECTION SYSTEM TEST (STEPS 24.0 & 25.0) 
P1453
Only USA
AIR Relay Module, AIR Pump 24, see FUEL INJECTION SYSTEM TEST (STEPS 24.0 & 25.0) 
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. Check correct operation of DAS.
B. CAN signal from DAS control module (N54/1) to engine control module (N3/10) interrupted
C. Engine control module (ME/SFI) and DAS control module are not compatible. See step 34, Fuel Injection System Test (Steps 34.0-34.2) 
P1580 EA/CC/ISC Actuator 3 & 4, see Electronic Accelerator Test (Steps 2.1-3.1)  & Electronic Accelerator Test (Steps 4.0-6.0) 
P1584 Stop Lamp Switch Test ASR/ETS. See TRACTION CONTROL in BRAKES
P1603 CAN From EIS 34, Fuel Injection System Test (Steps 34.0-34.2) 
P1605 Poor road/traction condition recognition signal (via comparison of VSS RPM signals Test ASR/ESP. See TRACTION CONTROL in BRAKES
P1642 Engine control module incorrectly coded (coded for MT, vehicle has AT) Check version coding and correct, see VERSION CODING under SELF-DIAGNOSTICS
P1643 Engine control module incorrectly coded (coded for MT, vehicle has AT) or no CAN transmission from transmission control module (N15/3) Check version coding and correct, see VERSION CODING under SELF-DIAGNOSTICS
See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P1644 Transmission version cannot be checked due to low voltage at transmission control module (N15/3) See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P1681 Crash Signal Implausible  
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)