| Model | Year | Engine identification | System |
|---|---|---|---|
| Accord 2.4L | 2005-07 | K24A4/K24A8 | PGM-FI |
| Accord 2.4L | 2008-09 | K24Z2/K24Z3 | PGM-FI |
| Accord 3.0L | 2005-07 | J30A4/J30A5 | PGM-FI |
| Accord 3.0L | 2008-09 | J35Z2/J35Z3 | PGM-FI |
| Civic 1.8L | 2006-09 | J35Z2/J35Z3 | PGM-FI |
| Civic 2.0L | 2006-09 | K20Z3 | PGM-FI |
General information
- Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
- ECM operates in backup mode if sensors fail, to enable vehicle to be driven to repair shop.
Accessing
Trouble codes can only be displayed by using a Scan Tool connected to the data link connector (DLC).
o Accord 1o Civic 2
Erasing
Trouble codes can only be erased by using a Scan Tool connected to the data link connector (DLC).
Trouble code identification
| OBD-11 code | Fault location | Probable cause |
| PO, P2, UO | Refer to OBD-11 trouble code tables | – |
| P1009 | Camshaft position (CMP), intake/letufront, bank 1 – circuit malfunction/timing over-advanced/system performance | Wiring, valve timing, engine mechanical fault, CMP actuator, ECM |
| P1077 | Intake manifold air control actuator – high RPM malfunction | Wiring, intake manifold air control actuator, ECM |
| P1078 | Intake manifold air control actuator – low RPM malfunction | Wiring, intake manifold air control actuator, ECM |
| P1109 | Barometric pressure (BARO) sensor- range/performance problem | BARO sensor, ECM |
| P1116 | Engine coolant temperature (ECT) sensor 1/2 – range/performance problem | Wiring, ECT sensor, ECM |
| P1121 | Throttle position (TP) sensor – signal lower than expected | Wiring, TP sensor, ECM |
| P1122 | Throttle position (TP) sensor- signal higher than expected | Wiring, TP sensor, ECM |
| P1128 | Manifold absolute pressure (MAP) sensor – pressure lower than expected | MAP sensor |
| P1129 | Manifold absolute pressure (MAP) sensor – pressure higher than expected | MAP sensor |
| P1157 | Heated oxygen sensor (H02S) 1 – circuit malfunction | Wiring, H02S, ECM |
| P1172 D | Heated oxygen sensor (H02S) 1 – circuit malfunction | Wiring, H02S, ECM |
| P1172 H | Heated oxygen sensor (H02S) 1, bank 1 – circuit malfunction | Wiring, H02S, ECM |
| P1174 | Heated oxygen sensor (H02S) 1, bank 2 – circuit malfunction | Wiring, H02S, ECM |
| P1187 | Fuel tank temperature sensor- low input | Wiring short to ground, fuel tank temperature sensor, ECM |
| P1188 | Fuel tank temperature sensor- high input | Wiring short to positive, fuel tank temperature sensor, ECM |
| P1192 | Fuel tank pressure sensor- low input | Wiring short to ground, fuel tank pressure sensor |
| P1193 | Fuel tank pressure sensor – high input | Wiring short to positive, fuel tank pressure sensor |
| P1297 | Electrical load sensor – circuit/voltage low | Wiring, electrical load sensor, ECM |
| P1298 | Electrical load sensor – circuit/voltage high | Wiring, electrical load sensor, ECM |
| P145C | Evaporative emission (EVAP) canister purge system – incorrect flow | Wiring, hose leak/blockage, EVAP canister purge valve, mechanical fault, ECM programming, ECM |
| P1454 | Fuel tank pressure sensor- range/performance problem | Wiring, hose, fuel tank pressure sensor, fuel filler cap, EVAP canister/vent valve, ECM |
| P1549 | Generator system – high voltage | Wiring, generator, ECM |
| P16BB | Generator system – low voltage | Wiring, generator, ECM |
| P16BC | Generator system – low voltage | Wiring, generator, ECM |
| P16CO | Engine control module (ECM) – malfunction | ECM programming, ECM |
| P165B | Electronic throttle system (ETS) relay – malfunction | Wiring, ETS relay, ECM |
| P1659 | Electronic throttle system (ETS) relay – malfunction | Wiring, ETS relay, ECM |
| P1683 | Throttle motor – default position spring performance problem | Wiring, throttle sticking/mechanically damaged, throttle motor |
| P1684 | Throttle motor – return spring performance problem | Wiring, throttle sticking/mechanically damaged, throttle motor |