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Diagnostic Trouble Code Identification: Notes

NOTE: This diagnostic information applies to engine (No. 111), equipped with Motor Electronics Sequential Fuel Injection (ME-SFI). Be sure diagnostic information being used applies to vehicle being diagnosed. Disregard references to 202 chassis vehicles.
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 .

If no DTC, in case of 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, Hot film MAF sensor (B2/5) 4, see Fuel Injection System Test (Steps 3.0-4.1) 
P0105 MAP circuit malfunction, Pressure sensor (B28) 6, see FUEL INJECTION SYSTEM TEST (STEPS 6.0 & 6.1) 
P0110 IAT circuit malfunction, IAT sensor (in Hot film MAF sensor B2/5) 5, see FUEL INJECTION SYSTEM TEST (STEPS 5.0 & 5.1) 
P0115 ECT circuit malfunction, ECT sensor (B11/4) 8, see FUEL INJECTION SYSTEM TEST (STEPS 8.0 & 8.1) 
P0120 Throttle position circuit malfunction, actual value petentiometer in CC/ISC actuator (M16/2) 3, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1) 
P0130 O2S 1 circuit malfunction
A. O2S 1 (before TWC) (G3/2)
B. O2S 1 (before TWC) (G3/2)
Voltage increase insufficient
10, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0133 O2S 1 circuit slow response
A. O2S 1 (before TWC) (G3/2), ageing correction value exceeded
B. O2S 1 (before TWC) (G3/2), ageing time period too long
10, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0135 O2S 1 heater (before TWC) (G3/2) circuit malfunction 11, see FUEL INJECTION SYSTEM TEST (STEPS 10.0 & 11.0) 
P0136 O2S 2 (after TWC) (G3/1) (only USA) circuit malfunction 12, see FUEL INJECTION SYSTEM TEST (STEPS 12.0 & 13.0) 
P0141 Right O2S 2 heater (after TWC) (G3/1) (only USA) circuit malfunction 13, see FUEL INJECTION SYSTEM TEST (STEPS 12.0 & 13.0) 
P0170 Fuel trim malfunction
A. Self adaptation of fuel mixture "partial load" at limit from engine control module (N3/10)
B. Self adaptation of fuel mixture "CTP" at limit from engine control module (N3/10)
Intake air leak, injectors, diaphragm pressure regulator, engine wear
P0201 Injector (Y62y1) circuit malfunction - cyl. 1 14, see Fuel Injection System Test (Step 14.0) 
P0202 Injector (Y62y2) circuit malfunction - cyl. 2 15, see Fuel Injection System Test (Step 15.0) 
P0203 Injector (Y62y3) circuit malfunction - cyl. 3 16, see Fuel Injection System Test (Step 16.0) 
P0204 Injector (Y62y4) 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 or random misfire, TWC damaging, detected 7 & 8, see Ignition System Test (Steps 7.0-8.1) 
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TESTS 
Compression pressure
P0301 Cylinder 1 misfire or misfire, TWC damaging, detected 7, see Ignition System Test (Steps 7.0-8.1) 
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TESTS 
Compression pressure
P0302 Cylinder 2 misfire or misfire, TWC damaging, detected 8, see Ignition System Test (Steps 7.0-8.1) 
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TESTS 
Compression pressure
P0303 Cylinder 3 misfire or misfire, TWC damaging, detected 8, see Ignition System Test (Steps 7.0-8.1) 
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TESTS 
Compression pressure
P0304 Cylinder 4 misfire or misfire, TWC damaging, detected 7, see Ignition System Test (Steps 7.0-8.1) 
9, see IGNITION SYSTEM TEST (STEPS 9.0 & 9.1) 
1, see FUEL INJECTOR TESTS 
Compression pressure
P0325 Front KS 1 (A16) circuit malfunction Wiring, connector, A16
P0335 CKP sensor (L5) circuit malfunction 5, see IGNITION SYSTEM TEST (STEPS 5.0 & 5.1) 
P0341 CMP (Camshaft Hall-effect) sensor (B6/1) 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 (logic chain) 22 & 23, see FUEL INJECTION SYSTEM TEST (STEPS 21.0 & 22.0)  & Fuel Injection System Test (Step 23.0) 
P0410
Only USA Models 170, 202
Air injection system malfunction (logic chain) 20, see Fuel Injection System Test (Step 20.0) 
P0422 TWC efficiency below threshold Replace TWC
P0440
Only USA Model 170, 202 as of 09/97
EVAP system malfunction (leak, logic chain) 26 & 28, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0)  & FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
P0441 EVAP system incorrect purge flow (not functioning) 26 & 27, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) 
P0442
Only USA Model 170, 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 (Y58/1) circuit malfunction 26, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) 
P0446
Only USA Model 170, 202 as of 09/97
EVAP system vent control malfunction
A. Activated Charcoal canister shut-off valve (Y58/4)
B. End stage Activated Charcoal canister shut-off valve (Y58/4)
27, 28 & 30, see FUEL INJECTION SYSTEM TEST (STEPS 26.0 & 27.0) , FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0)  & FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
P0450
Only USA Model 170, 202 as of 09/97
Model 202 only USA, up to 08/97
A. Fuel tank pressure sensor (B4/3) electrical fault 30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
B. Fuel tank pressure sensor (B4/3) electrical fluctuations Charcoal canister plugged
Purge monitoring pressure sensor (B4/4) 31, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
P0455
Only USA Model 170, 202 as of 09/97
EVAP system leak detected (large leak)
 
Fuel tank pressure sensor (B4/3)
28, see FUEL INJECTION SYSTEM TEST (STEPS 28.0 & 29.0) 
30, see FUEL INJECTION SYSTEM TEST (STEPS 30.0 & 30.1) 
P0460
Only USA Model 170, 202 as of 09/97
Fuel level sensor circuit low input Fill fuel tank
P0500 VSS sensor (left front or rear) malfunction Test ASR/ETS. See TRACTION CONTROL in BRAKES
P0507 ISC RPM higher than expected 1, 2 & 3, see ELECTRONIC ACCELERATOR TEST (STEPS 1.0 & 1.1) , ELECTRONIC ACCELERATOR TEST (STEPS 2.0 & 2.1)  & ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 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 1, see CRUISE CONTROL TESTS 
P0600 Serial communication link malfunction (CAN bus from ESP/SPS control module (N47-5) 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 Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0702 Transmission control system electrical 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 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 Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0730 Incorrect gear ratio 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 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 Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0748 Pressure control solenoid electrical Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0753 Shift solenoid A electrical Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0758 Shift solenoid B electrical Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
P0763 Shift solenoid C electrical 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 (M4/3) malfunction 38, see Fuel Injection System Test (Step 38.0) 
P0803
Supercharger only
Air flap/air filter actuator (M16/7) 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 (Y2/1) 36, see Fuel Injection System Test (Steps 35.0-37.0) 
P0809 Angle deviation between camshaft and 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 (S43) 34, see FUEL INJECTION SYSTEM TEST (STEPS 33.0 & 34.0) 
P1181 Engine/climate control electric cooling fan (M4/3) malfunction 38, see Fuel Injection System Test (Step 38.0) 
P1182 Starter lock-out relay module (N65k2) (Model 170 only).
Starter relay (K40/4k2) Model 202 as of 06/97.
3, see Fuel Injection System Test (Steps 3.0-4.1) 
P1186 Fuel safety shut-off recognized (EA/ISC actuator (M16/1) 3 & 4, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1)  & Electronic Accelerator Test (Steps 4.0-6.0) 
EA/ISC actuator (M16/1 sticks or jammed, check intake system for residue
P1235 Supercharger function 35, see Fuel Injection System Test (Steps 35.0-37.0) 
P1236 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 (Y27) malfunction 21, see FUEL INJECTION SYSTEM TEST (STEPS 21.0 & 22.0) 
P1420
Only USA Models 170, 202
AIR pump switchover value (Y32) 19, see FUEL INJECTION SYSTEM TEST (STEPS 18.0 & 19.0) 
P1453
Only USA Model 202, without supercharger
AIR relay module in passenger side fuse and relay module box (K40/4) 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 (Y49) (logic chain) 25, see Fuel Injection System Test (Steps 24.0-25.0) 
P1525 Adjustable camshaft timing solenoid (Y49) 24, see Fuel Injection System Test (Steps 24.0-25.0) 
P1542 Pedal value sensor (B37) 1 & 2, see ELECTRONIC ACCELERATOR TEST (STEPS 1.0 & 1.1)  & ELECTRONIC ACCELERATOR TEST (STEPS 2.0 & 2.1) 
P1570 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 correct operation of DAS. See Fuel Injection System Test (Step 23.0) 
C. Engine control module (ME-SFI) and DAS control module are not compatible Check control modules and part no.
P1580 EA/CC/ISC actuator (M16/6) 3 & 4, see ELECTRONIC ACCELERATOR TEST (STEPS 3.0 & 3.1)  & Electronic Accelerator Test (Steps 4.0-6.0) 
P1584 Stop lamp switch (S9/1) Check switch
P1603 CAN signal from EIS (CAN failure) 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 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
Test Electronic Transmission Control (ETC). 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) 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 A. CAN failure: Transmission protection malfunction from transmission control module (N15/3) Test Electronic Transmission Control (ETC). See appropriate AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS article in TRANSMISSION SERVICE & REPAIR for IMPORTED VEHICLES.
B. CAN failure: Instrument cluster Test instrument cluster