DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC (1) | System Affected |
|---|
| 0 | Engine Control Module (ECM) |
| 1 | Heated Oxygen Sensor (HO2S) |
| 3 | Manifold Absolute Pressure (MAP) Sensor |
| 4 | Crankshaft Position (CKP) Sensor |
| 6 (2) | Engine Coolant Temperature (ECT) Sensor |
| 7 (2) | Throttle Position (TP) Sensor |
| 8 | Top Dead Center (TDC) Sensor |
| 9 | No. 1 Cylinder Position (CYP) Sensor |
| 10 | Intake Air Temperature (IAT) Sensor |
| 12 | Exhaust Gas Recirculation (EGR) Valve Lift Sensor |
| 13 | Barometric Pressure (BARO) Sensor |
| 14 | Idle Air Control (IAC) Valve |
| 15 | Ignition Output Signal |
| 16 | Fuel Injector |
| 17 (2) | Vehicle Speed Sensor (VSS) |
| 20 (3) | Electrical Load Detector (ELD) |
| 21 (4) | Variable Valve Timing And Valve Lift Electronic Control VTEC) Solenoid Valve |
| 22 (4) | Variable Valve Timing And Valve Lift Electronic Control VTEC) Pressure Switch |
| 30 (3) | A/T FI Signal A |
| 31 (3) | A/T FI Signal B |
| 41 | Heated Oxygen Sensor (HO2S) Heater |
| 43 | Fuel Supply System |
| (1) If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. (2) MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. (3) MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. (4) Applies to Valve Lift Electronic Control (VTEC) engine only. |
| (1) | If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. |
| (2) | MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. |
| (3) | MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. |
| (4) | Applies to Valve Lift Electronic Control (VTEC) engine only. |
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (ACCORD)
| DTC (1) | System Affected |
|---|
| 0 | Malfunction Indicator Light (MIL) |
| 0 | Malfunction Indicator Light (MIL) Stays On |
| 1 | Heated Oxygen Sensor (HO2S) |
| 3 | Manifold Absolute Pressure (MAP) Sensor |
| 4 | Crankshaft Position (CKP) Sensor |
| 6 (2) | Engine Coolant Temperature (ECT) Sensor |
| 7 (2) | Throttle Position (TP) Sensor |
| 8 | Top Dead Center (TDC) Sensor |
| 9 | No. 1 Cylinder Position (CYP) Sensor |
| 10 | Intake Air Temperature (IAT) Sensor |
| 12 | Exhaust Gas Recirculation (EGR) Valve Lift Sensor |
| 13 | Barometric Pressure (BARO) Sensor |
| 14 | Idle Air Control (IAC) Valve |
| 15 | Ignition Output Signal |
| 16 | Fuel Injector |
| 17 (2) | Vehicle Speed Sensor (VSS) |
| 20 (3) | Electrical Load Detector (ELD) |
| 30 (3) | A/T FI Signal A |
| 31 (3) | A/T FI Signal B |
| 41 | Heated Oxygen Sensor (HO2S) Heater |
| 43 | Fuel Supply System |
| (1) If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. (2) MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. (3) MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. |
| (1) | If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. |
| (2) | MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. |
| (3) | MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. |
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (ODYSSEY)
| DTC (1) | System Affected |
|---|
| 0 (2) | Engine Control Module (ECM) |
| 1 | Heated Oxygen Sensor (HO2S) |
| 3 | Manifold Absolute Pressure (MAP) Sensor |
| 4 | Crankshaft Position (CKP) Sensor |
| 5 | Manifold Absolute Pressure (MAP) Sensor |
| 6 (3) | Engine Coolant Temperature (ECT) Sensor |
| 7 (3) | Throttle Position (TP) Sensor |
| 8 | Top Dead Center (TDC) Sensor |
| 9 | No. 1 Cylinder Position (CYP) Sensor |
| 10 | Intake Air Temperature (IAT) Sensor |
| 12 | Exhaust Gas Recirculation (EGR) Valve Lift Sensor |
| 13 | Barometric Pressure (BARO) Sensor |
| 14 14 | Idle Air Control (IAC) Valve |
| 15 | Ignition Output Signal |
| 16 | Fuel Injector |
| 17 (3) | Vehicle Speed Sensor (VSS) |
| 20 (4) | Electrical Load Detector (ELD) |
| 21 (5) | Variable Valve Timing And Valve Lift Electronic Control VTEC) Solenoid Valve |
| 22 (5) | Variable Valve Timing And Valve Lift Electronic Control VTEC) Pressure Switch |
| 23 (6) | Knock Sensor (KS) |
| 30 (4) | A/T FI Signal A |
| 31 (4) | A/T FI Signal B |
| 41 | Heated Oxygen Sensor (HO2S) Heater |
| 43 | Fuel Supply System |
| (1) If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. (2) For DTC 0 testing, see NO DTC testing chart. (3) MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. (4) MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. (5) Applies to Valve Lift Electronic Control (VTEC) engine only. (6) Does not apply to 2.2L SOHC engine. |
| (1) | If codes appear other than those listed in table, verify code. If code is not listed, replace ECM. |
| (2) | For DTC 0 testing, see NO DTC testing chart. |
| (3) | MIL and D4 indicator light may illuminate simultaneously when DTC 6, 7 or 17 is stored. Diagnose PGM-FI system as necessary, then recheck if D4 indicator light is on. If D4 indicator light is on, repair transmission. |
| (4) | MIL will not illuminate when a malfunction occurs in A/T FI signal or Electrical Load Detector (ELD). MIL will indicate appropriate DTC when Service Check Connector is shorted. |
| (5) | Applies to Valve Lift Electronic Control (VTEC) engine only. |
| (6) | Does not apply to 2.2L SOHC engine. |
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (PRELUDE)
ENGINE CODE IDENTIFICATION
| Application | Engine Code |
|---|
| Accord |
| 2.2L SOHC VTEC | F22B1 |
| 2.2L SOHC | F22B2 |
| Odyssey |
| 2.2L SOHC | F22B6 |
| Prelude |
| 2.2L SOHC | F22A1 |
| 2.2L DOHC VTEC | H22A1 |
ENGINE CODE IDENTIFICATION
Scheme 12
Scheme 12: CONNECTOR IDENTIFICATION
Scheme 13
Scheme 14
Scheme 15
Note. In the following DTC testing, illustrations and schematics are courtesy of American Honda Motor Co., Inc.
