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Diagnostic Trouble Code Identification: Notes

NOTE: This diagnostic information applies to 1997-2000 models with 2.3L engine (No.111), equipped with Motor Electronics Sequential Fuel Injection (ME-SFI).
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, 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 .

If there is no DTC indicating no malfunction in system, and there is a complaint, perform FUEL INJECTION SYSTEM TESTS , IGNITION SYSTEM TESTS , ELECTRONIC ACCELERATOR TESTS  and CRUISE CONTROL TESTS  entirely.

DIAGNOSTIC TROUBLE CODE LIST

DTC Definition Test Step/Remedy
P0100 MAF Circuit Malfunction 4, see Fuel Injection System Test (Steps 3.0-4.1) 
P0105 MAP Circuit Malfunction 6, see FUEL INJECTION SYSTEM TEST (STEPS 6.0 & 6.1) 
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 10, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0133 O2S-1 Circuit Slow Response 10, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0135 O2S-1 Heater Circuit Malfunction 11, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0136 O2S-2 Circuit Malfunction 12, see FUEL INJECTION SYSTEM TEST (STEPS 12.0 & 13.0) 
P0141 O2S-2 Heater Circuit Malfunction 13, see FUEL INJECTION SYSTEM TEST (STEPS 12.0 & 13.0) 
P0170 Fuel Trim Malfunction Intake air leak, injectors, diaphragm pressure regulator, engine wear
P0201 Injector Circuit Malfunction - Cyl. 1 14, see Fuel Injection System Test (Step 14.0) 
P0202 Injector Circuit Malfunction - Cyl. 2 15, see Fuel Injection System Test (Step 15.0) 
P0203 Injector Circuit Malfunction - Cyl. 3 16, see Fuel Injection System Test (Step 16.0) 
P0204 Injector Circuit Malfunction - Cyl. 4 17, see Fuel Injection System Test (Step 17.0) 
P0243 Recirculated Air Flap Actuator (M16/7) For Supercharger 37, see Fuel Injection System Test (Steps 35.0-37.0) 
P0300 Random Misfire Detected A. Random misfire
7 & 8, see Ignition System Test (Steps 7.0-8.1) 
B. Random misfire, TWC damaging
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TEST 
Compression pressure
P0301 Cylinder 1 Misfire Detected A. Cylinder 1 misfire
7, see Ignition System Test (Steps 7.0-8.1) 
B. Cylinder 1 misfire, TWC damaging
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TEST 
Compression pressure
P0302 Cylinder 2 Misfire Detected A. Cylinder 2 misfire
8, see Ignition System Test (Steps 7.0-8.1) 
B. Cylinder 2 misfire, TWC damaging
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TEST 
Compression pressure
P0303 Cylinder 3 Misfire Detected A. Cylinder 3 misfire
8, see Ignition System Test (Steps 7.0-8.1) 
B. Cylinder 3 misfire, TWC damaging
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TEST 
Compression pressure
P0304 Cylinder 4 Misfire Detected A. Cylinder 4 misfire
7, see Ignition System Test (Steps 7.0-8.1) 
B. Cylinder 4 misfire, TWC damaging
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TEST 
Compression pressure
P0325 KS 1 Circuit Malfunction Wiring, connector, A16
P0335 CKP Sensor Circuit Malfunction 5, see IGNITION SYSTEM TEST (STEPS 5.0 & 5.1) 
P0341 CMP Sensor Circuit Range/Performance 6, see IGNITION SYSTEM TEST (STEPS 6.0 & 6.1) 
P0370 Angle Deviation Between Camshaft And Crankshaft Check basic adjustment of camshaft
P0400
Only USA Model 202: without supercharger
Exhaust Gas Recirculation Flow Malfunction 22, see FUEL INJECTION SYSTEM TEST (STEPS 21.0 & 22.0) ; 23, see Fuel Injection System Test (Step 23.0) 
O0410
Only USA Models 170 & 202
Air Injection System Malfunction 20, see Fuel Injection System Test (Step 20.0) 
P0422 TWC Efficiency Below Threshold Replace TWC
P0440
Only USA Model 170 & model 202 as of 09/97
EVAP System Malfunction 26, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) ; 28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0441 EVAP System Incorrect Purge Flow 26 & 27, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) 
P0442
Only USA Model 170 & model 202 as of 09/97
EVAP System Leak Detected (Small Leak) 28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0443 EVAP System Purge Control Valve Circuit Malfunction 26, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) 
P0446
Only USA Model 170 & model 202 as of 09/97
EVAP System Vent Control Malfunction A. Activated charcoal canister shut-off valve
27, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) ; 28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) & 30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
B. End stage activated charcoal canister shut-off valve
29, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0450
Only USA Models 170 & 202
EVAP System Pressure Sensor Malfunction A. Fuel tank pressure sensor electrical fault
30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
B. Fuel tank pressure sensor electrical fluctuations
Charcoal canister plugged
P0450
Only USA Model 202 up to 08/97
EVAP System Pressure Sensor Malfunction 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
P0455
Only USA Model 170 & model 202 as of 09/97
EVAP System Leak Detected (Large Leak) EVAP system, large leak
28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
Fuel tank pressure sensor
30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
P0460
Only USA Model 170 & model 202 as of 09/97
Fuel Sensor Circuit Low Input Fill fuel tank
P0500 VSS Sensor Malfunction Test ASR/ETS, see appropriate TRACTION CONTROL in BRAKES
P0507 IDC RPM Higher Than Expected 1, 2 & 3, see ELECTRONIC ACCELERATOR TESTS 
P0560 System Voltage Malfunction 1, see FUEL INJECTION SYSTEM TEST (STEPS 1.0 & 1.1) ; 2, see Fuel Injection System Test (Steps 1.2-2.2) 
P0565 Cruise Control Switch 1, see CRUISE CONTROL TESTS 
P0600 Serial Communication Link Malfunction 32, see Fuel Injection System Test (Steps 32.0-32.2) 
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
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0702 Transmission Control System Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0715 Input/Turbine Speed Sensor Circuit Malfunction
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0720 Output Speed Sensor Circuit Malfunction
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0730 Incorrect Gear Ratio
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0740 Torque Converter Clutch Circuit Malfunction
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0743 Torque Converter Clutch Circuit Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0748 Pressure Control Solenoid Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0753 Shift Solenoid A Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0758 Shift Solenoid B Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P0763 Shift Solenoid C Electrical
Read DTC memory of transmission control module
Test Electronic Transmission Control (ETC). 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 (Step 38.0) 
P0803
Supercharger only
Air/Flap Filter Actuator Malfunction 37, see Fuel Injection System Test (Steps 35.0-37.0) 
P0805
Supercharger only
Supercharger Function 35, see Fuel Injection System Test (Steps 35.0-37.0) 
P0806
Supercharger only
Magnetic Supercharger Clutch 36, see Fuel Injection System Test (Steps 35.0-37.0) 
P0809 Angle Deviation Between Camshaft & Crankshaft Check basic adjustment of camshaft
P0811 CAN From Electronic Ignition Lock 32, see Fuel Injection System Test (Steps 32.0-32.2) 
P1163 Oil Level Switch 34, see FUEL INJECTION SYSTEM TEST (STEPS 33.0 & 34.0) 
P1181 Engine/Climate Control Electric Cooling Fan Malfunction 38, see Fuel Injection System Test (Step 38.0) 
P1182
Only USA Model 170 & model 202 as of 09/97
Model 170: Starter Lock Out Relay Module (N65k2)
Model 202: Starter Relay (K40/4k2)
3, see Fuel Injection System Test (Steps 3.0-4.1) 
P1186 Fuel Safety Shut Off Recognized 3, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) ; 4, see Electronic Accelerator Test (Steps 4.0-6.0) 
EA/CC/ISC actuator (M16/1) sticks or jammed, Check intake system for residue.
P01235
Supercharger only
Supercharger Function 35, see Fuel Injection System Test (Steps 35.0-37.0) 
P01236
Supercharger only
Magnetic Supercharger Clutch (Y2/1) 36, see Fuel Injection System Test (Steps 35.0-37.0) 
P1386 Knock Sensor Control From ECM (N3/10) At End Stop 1. Increased knock tendency due to bad fuel, carbon in combustion chamber or mechanical damage.
2. Engine control module (N3/10).
P1400
Only USA Model 202: without supercharger
EGR Switchover Valve Malfunction 21, see FUEL INJECTION SYSTEM TEST (STEPS 21.0 & 22.0) 
P1420
Only USA Models 170 & 202
AIR Pump Switchover Valve) 19, see FUEL INJECTION SYSTEM TEST (STEPS 18.0 & 19.0) 
P1453
Only USA Model 202: without supercharger
AIR Relay Module 18, see FUEL INJECTION SYSTEM TEST (STEPS 18.0 & 19.0) 
P1491 Refrigerant Pressure In A/C System Too High Check automatic A/C system
P1519 Adjustable Camshaft Timing Solenoid 25, see Fuel Injection System Test (Steps 24.0-25.0) 
P1525 Adjustable Camshaft Timing Solenoid 24, see Fuel Injection System Test (Steps 24.0-25.0) 
P1542 Pedal Value Sensor 1, see ELECTRONIC ACCELERATOR TEST (STEPS 1.0 & 1.1) ; 2, see ELECTRONIC ACCELERATOR TEST (STEPS 2.0 & 2.1) 
P1570 CAN Signal From DAS Control Nodule To Engine Control Module A. Start attempted with "locked" DAS, user error
B. CAN signal from DAS control module to engine control module interrrupted. Check correct operation of DAS, step 23, see Fuel Injection System Test (Step 23.0) 
C. Engine control module and DAS control module are not compatible. Check control modules and part no.
P1580 EA/CC/ISC Actuator 3, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) ; 4, see Electronic Accelerator Test (Steps 4.0-6.0) 
P1584 Stop Lamp Switch Check switch
P1603 CAN Signal From EIS 32, see Fuel Injection System Test (Steps 32.0-32.2) 
P1605 Poor road/traction condition recognition signal (via comparison of VSS RPM signals) Test ASR./ESP, see appropriate TRACTION CONTROL article in BRAKES
P1642 Engine Control Module Incorrectly Coded Check version coding and correct. See VERSION CODING  under SELF-DIAGNOSTICS.
P1643 Engine Control Module Incorrectly Coded Or No CAN Transmission From Transmission Control Module Check version coding and correct. See VERSION CODING  under SELF-DIAGNOSTICS.
Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P1644 Transmission Version Can Not Be Checked Due To Low Voltage At Transmission Control Module Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
P1681 Crash Signal Not Plausible 41, see Fuel Injection System Test (Steps 39.0-41.0) 
P1747 CAN Signal From ETC Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES
Test instrument cluster