| Model | Year | Engine identification | System |
|---|---|---|---|
| RDX 2.3L | 2007-09 | K23A1 | PGM-FI |
| TL 3.2L | 2004-08 | J32A3 | PGM-FI |
| TL 3.5L | 2007-08 | J35A8 | PGM-FI |
| TSX 2.4L | 2004-09 | K24A2 | 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) [1].
Erasing
Trouble codes can only be erased by using a Scan Tool connected to the data link connector (DLC) [1].
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/lefl/front, bank 1 – circuit malfunction/timing over-advanced/system performance | Wiring, valve timing, engine mechanical fault, CMP actuator, ECM |
| P1077 | Intake manifold air control system – high RPM malfunction | Wiring, intake manifold air control solenoid, ECM programming, ECM |
| P1078 | Intake manifold air control system – low RPM malfunction | Wiring, intake manifold air control solenoid, ECM programming, ECM |
| P1109 | Barometric pressure (BARO) sensor- range/performance problem | BARO sensor, ECM programming, ECM |
| P1116 | Engine coolant temperature (ECT) sensor- range/performance problem | Wiring, ECT sensor, ECM programming, ECM |
| P1128 | Manifold absolute pressure (MAP) sensor – pressure lower than expected | Wiring, MAP sensor |
| P1129 | Manifold absolute pressure (MAP) sensor- pressure higher than expected | Wiring, vacuum leaks, MAP sensor |
| P1131 | Brake system vacuum sensor – signal malfunction | Wiring, other trouble codes stored, brake system vacuum sensor, brake servo vacuum pump, ECM programming, ECM |
| P1157 | Heated oxygen sensor (H02S) – circuit malfunction | Wiring, H025, ECM programming, ECM |
| P1172 | Heated oxygen sensor (H02S) -front -circuit malfunction | Wiring, H025, ECM programming, ECM |
| P1172 0 | Heated oxygen sensor (H02S) – H02S 1, bank 1 – circuit malfunction | Wiring, H025, ECM programming, ECM |
| P1174 0 | Heated oxygen sensor (H02S) – H02S 1, bank 2 – circuit malfunction | Wiring, H025, ECM programming, ECM |
| P1233 | Turbocharger (TC) boost pressure sensor/barometric pressure (BARO) sensor- signal correlation | Wiring, TC boost pressure sensor, BARO sensor, ECM programming, ECM |
| P1234 | Turbocharger (TC) boost pressure sensor/manifold absolute pressure (MAP) sensor – signal correlation | Wiring, TC boost pressure sensor, MAP sensor, ECM programming, ECM |
| P1297 | Electrical load sensor – circuit/voltage low | Wiring, underhood fusebox/relay plate, electrical load sensor, ECM programming, ECM |
| P1298 | Electrical load sensor – circuit/voltage high | Wiring, underhood fusebox/relay plate, electrical load sensor, ECM programming, ECM |
| P145A | Evaporative emission (EVAP) canister purge system – incorrect flow | Wiring, hose leak/blockage, EVAP canister purge valve, non-return valve B, ECM programming, ECM |
| P145B | Evaporative emission (EVAP) canister purge system – non-return valve stuck open | Non-return valve A |
| P145C | Evaporative emission (EVAP) canister purge system – incorrect flow | Wiring, hose leak/blockage, EVAP canister purge valve, mechanical fault, ECM programming, ECM |
| P145D | 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 programming, ECM |
| P15BA | Brake booster pressure sensor – no vacuum | Wiring, vacuum pipes blocked/leaking, brake booster pressure sensor, brake booster vacuum pump, brake booster, brake pedal position (BPP) switch |
| P15BB | Brake booster pressure sensor -leak detected | Vacuum pipes blocked/leaking, brake booster vacuum pump, brake booster pressure sensor, brake booster, brake pedal position (BPP) switch |
| P15BC | Brake booster vacuum pump – stuck ON | Wiring, brake booster pressure sensor, vacuum pipes leaking, brake booster vacuum pump, intake manifold check valve |
| P1589 | Brake booster pressure sensor – signal malfunction | Wiring, vacuum pipes blocked/leaking, air leaks, brake booster pressure sensor, intake manifold check valve, ECM programming, ECM |
| P1549 | Generator system – high voltage | Wiring, generator, ECM programming, ECM |
| P16BB | Generator system – low voltage | Wiring, generator, ECM programming, ECM |
| P16BC | Generator system – low voltage | Wiring, generator, ECM programming, ECM |
| P16BD | Starter motor relay 2 – malfunction | Wiring, starter motor relay |
| P16BE | Starter motor relay 1 – malfunction | Wiring, starter motor relay |
| P16BF | Starter motor relays 1/2 – circuit malfunction | Wiring, ECM programming, ECM |
| P16CO | Engine control module (ECM) – malfunction | ECM programming, ECM |
| P16DA | Brake booster vacuum pump relay 1 – stuck OFF | Wiring, brake booster vacuum pump relay, ECM programming, ECM |
| P16DB | Brake booster vacuum pump relay 1/2- circuit malfunction | Wiring, brake booster vacuum pump relays, ECM programming, ECM |
| P16DC | Brake booster vacuum pump relay 2 – stuck ON | Wiring, brake booster vacuum pump relay, ECM programming, ECM |
| P16DD | Brake booster vacuum pump relay 1 – stuck ON | Wiring, brake booster vacuum pump relay, ECM programming, ECM |
| P16D9 | Engine control module (ECM) – internal circuit failure | ECM programming, other trouble codes stored, ECM |
| P1658 | Electronic throttle system (ETS) relay – malfunction | Wiring, ETS relay, ECM programming, ECM |
| P1659 | Electronic throttle system (ETS) relay – malfunction | Wiring, ETS relay, ECM programming, 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 |
| P1717 | Transmission range (TR) switch – open circuit | Wiring, transmission shift link adjustment, TR switch, ECM programming, ECM |
| P1730 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid Al8/D, ECM programming, ECM |
| P1731 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid E, AT clutch pressure control solenoid A, ECM programming, ECM |
| P1732 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM |
| P1733 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid D, AT clutch pressure control solenoid C, ECM programming, ECM |
| P1734 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM |
| P1743 | AT- gear shift malfunction | Transmission fluid, wiring, shift solenoid E, mechanical fault, ECM programming, ECM |
| P1744 | AT- gear shift malfunction | Transmission fluid, wiring, shift solenoid E, mechanical fault, ECM programming, ECM |
| P1745 | AT- gear shift malfunction | Transmission fluid, mechanical fault |
| P1780 | AT- gear shift malfunction | Other AT trouble codes stored, ECM programming, ECM |