Diagnostic Trouble Code Definitions
If codes other than those listed are indicated, verify the code. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If the code indicated is not listed, replace the ECM. The Check Engine light (Malfunction Indicator Light) may come on, indicating a system problem, when, in fact, there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair connections if necessary. If the Check Engine light is on while the engine is running, jump the service check connector. If no code is displayed (Check Engine light stays on steady), the back-up system is in operation. Replace ECM and recheck. If the indication goes away, replace the original ECM.
On vehicles with automatic transaxle, the Check Engine light and DRIVE gear indicator light may come on simultaneously when the self-diagnosis indicator blinks 6, 7 and 17. Check the PGM-FI system according to the PGM-FI control system troubleshooting and recheck the DRIVE gear indicator light. To check DRIVE gear indicator light, see TROUBLESHOOTING in appropriate TRANSMISSION information.
On all vehicles, the Check Engine light and TCS indicator light may come on simultaneously when the self-diagnosis indicator blinks 3, 5, 6, 13, 15, 16, 17, 35 and 36. Check the PGM-FI system according to the PGM-FI control system troubleshooting and recheck the TCS indicator light. If it comes on, see TROUBLESHOOTING in TRACTION CONTROL article in BRAKES. The Check Engine light does not come on when there is a malfunction in the A/T FI signal. However, when the two terminals of the service check connector are connected with a jumper wire, the Check Engine light will indicate the codes.
| DTC | Definition | Go To | ||||
|---|---|---|---|---|---|---|
| 0 | Engine Control Module | (1) | ||||
| 1 | Front Heated Oxygen Sensor | DTC 1 OR 2 | ||||
| 2 | Rear Oxygen Sensor | DTC 1 OR 2 | ||||
| 3 | MAP Sensor | DTC 3 | ||||
| 4 | CKP Position Sensor "A" | DTC 4, 9, 54 OR 59 | ||||
| 5 | MAP Sensor | DTC 5 | ||||
| 6 | ECT Sensor | DTC 6 | ||||
| 7 | Throttle Position | DTC 7 | ||||
| 9 | No. 1 CYP Position Sensor "A" | DTC 4, 9, 54 OR 59 | ||||
| 10 | IAT Sensor | DTC 10 | ||||
| 12 | EGR System | DTC 12 | ||||
| 13 | BARO Sensor | DTC 13 | ||||
| 14 | IAC System | DTC 14 | ||||
| 15 | Ignition Output Signal | DTC 15 | ||||
| 16 | Fuel Injector | DTC 16 | ||||
| 17 | Vehicle Speed Sensor | DTC 17 | ||||
| 18 | Ignition Timing Adjustment | DTC 18 | ||||
| 21 | Front VTEC Solenoid Valve | DTC 21 OR 51 | ||||
| 22 | Front VTEC Oil Pressure Switch | DTC 22 OR 52 | ||||
| 23 | Front Knock Sensor | DTC 23 & 53 | ||||
| 30 | A/T FI Signal "A" | DTC 30 OR 31 | ||||
| 31 | A/T FI Signal "B" | DTC 30 OR 31 | ||||
| 35 | Traction Control STB Signal | (2) | ||||
| 36 | Traction Control FC Signal | (2) | ||||
| 41 | Front Oxygen Sensor Heater | DTC 41 OR 42 | ||||
| 42 | Rear Oxygen Sensor Heater | DTC 41 OR 42 | ||||
| 43 | Front Fuel Supply System | DTC 43 OR 44 | ||||
| 44 | Rear Fuel Supply System | DTC 43 OR 44 | ||||
| 45 | Front Fuel Metering | DTC 45 OR 46 | ||||
| 46 | Rear Fuel Metering | DTC 45 OR 46 | ||||
| 47 | Fuel Pump | DTC 47 | ||||
| 51 | Rear VTEC Solenoid Valve | DTC 21 OR 51 | ||||
| 52 | Rear VTEC Oil Pressure Switch | DTC 22 OR 52 | ||||
| 53 | Rear Knock Sensor | DTC 23 & 53 | ||||
| 54 | CKP Sensor "B" | DTC 4, 9, 54 & 59 | ||||
| 59 | No. 1 CYP Position Sensor "B" | DTC 4, 9, 54 & 59 | ||||
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