Acura OBD/OBD2 Codes >> RDX 2.3L – TL 3.2/3.5L – TSX 2.4L (2004 – 2009)

ModelYearEngine identificationSystem
RDX 2.3L2007-09K23A1PGM-FI
TL 3.2L2004-08J32A3PGM-FI
TL 3.5L2007-08J35A8PGM-FI
TSX 2.4L2004-09K24A2PGM-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 codeFault locationProbable cause
PO,P2,UORefer to OBD-11 trouble code tables
P1009Camshaft position (CMP), intake/lefl/front, bank 1 – circuit malfunction/timing over-advanced/system performanceWiring, valve timing, engine mechanical fault, CMP actuator, ECM
P1077Intake manifold air control system – high RPM malfunctionWiring, intake manifold air control solenoid, ECM programming, ECM
P1078Intake manifold air control system – low RPM malfunctionWiring, intake manifold air control solenoid, ECM programming, ECM
P1109Barometric pressure (BARO) sensor- range/performance problemBARO sensor, ECM programming, ECM
P1116Engine coolant temperature (ECT) sensor- range/performance problemWiring, ECT sensor, ECM programming, ECM
P1128Manifold absolute pressure (MAP) sensor – pressure lower than expectedWiring, MAP sensor
P1129Manifold absolute pressure (MAP) sensor- pressure higher than expectedWiring, vacuum leaks, MAP sensor
P1131Brake system vacuum sensor – signal malfunctionWiring, other trouble codes stored, brake system vacuum sensor, brake servo vacuum pump, ECM programming, ECM
P1157Heated oxygen sensor (H02S) – circuit malfunctionWiring, H025, ECM programming, ECM
P1172Heated oxygen sensor (H02S) -front -circuit malfunctionWiring, H025, ECM programming, ECM
P1172 0Heated oxygen sensor (H02S) – H02S 1, bank 1 – circuit malfunctionWiring, H025, ECM programming, ECM
P1174 0Heated oxygen sensor (H02S) – H02S 1, bank 2 – circuit malfunctionWiring, H025, ECM programming, ECM
P1233Turbocharger (TC) boost pressure sensor/barometric pressure (BARO) sensor- signal correlationWiring, TC boost pressure sensor, BARO   sensor, ECM programming, ECM
P1234Turbocharger (TC) boost pressure sensor/manifold absolute pressure (MAP) sensor – signal correlationWiring, TC boost pressure sensor, MAP   sensor, ECM programming, ECM
P1297Electrical load sensor – circuit/voltage lowWiring, underhood fusebox/relay plate, electrical load sensor, ECM programming, ECM
P1298Electrical load sensor – circuit/voltage highWiring, underhood fusebox/relay plate, electrical load sensor, ECM programming, ECM
P145AEvaporative emission (EVAP) canister purge system – incorrect flowWiring, hose leak/blockage, EVAP canister purge valve, non-return valve B, ECM programming, ECM
P145BEvaporative emission (EVAP) canister purge system – non-return valve stuck openNon-return valve A
P145CEvaporative emission (EVAP) canister purge system – incorrect flowWiring, hose leak/blockage, EVAP canister purge valve, mechanical fault, ECM programming, ECM
P145DEvaporative emission (EVAP) canister purge system – incorrect flowWiring, hose leak/blockage, EVAP canister purge valve, mechanical fault, ECM programming, ECM
P1454Fuel tank pressure sensor- range/performance problemWiring, hose, fuel tank pressure sensor, fuel filler cap, EVAP canister/vent valve, ECM programming, ECM
P15BABrake booster pressure sensor – no vacuumWiring, vacuum pipes blocked/leaking, brake booster pressure sensor, brake booster vacuum pump, brake booster, brake pedal position (BPP) switch
P15BBBrake booster pressure sensor -leak detectedVacuum pipes blocked/leaking, brake booster vacuum pump, brake booster pressure sensor, brake booster, brake pedal position (BPP) switch
P15BCBrake booster vacuum pump – stuck ONWiring, brake booster pressure sensor, vacuum pipes leaking, brake booster vacuum pump, intake manifold check valve
P1589Brake booster pressure sensor – signal malfunctionWiring, vacuum pipes blocked/leaking, air leaks, brake booster pressure sensor, intake manifold check valve, ECM programming, ECM
P1549Generator system – high voltageWiring, generator, ECM programming, ECM
P16BBGenerator system – low voltageWiring, generator, ECM programming, ECM
P16BCGenerator system – low voltageWiring, generator, ECM programming, ECM
P16BDStarter motor relay 2 – malfunctionWiring, starter motor relay
P16BEStarter motor relay 1 – malfunctionWiring, starter motor relay
P16BFStarter motor relays 1/2 – circuit malfunctionWiring, ECM programming, ECM
P16COEngine control module (ECM) – malfunctionECM programming, ECM
P16DABrake booster vacuum pump relay 1 – stuck   OFFWiring, brake booster vacuum pump relay, ECM programming, ECM
P16DBBrake booster vacuum pump relay 1/2- circuit malfunctionWiring, brake booster vacuum pump relays, ECM programming, ECM
P16DCBrake booster vacuum pump relay 2 – stuck ONWiring, brake booster vacuum pump relay, ECM programming, ECM
P16DDBrake booster vacuum pump relay 1 – stuck ONWiring, brake booster vacuum pump relay, ECM programming, ECM
P16D9Engine control module (ECM) – internal circuit failureECM programming, other trouble codes stored, ECM
P1658Electronic throttle system (ETS) relay – malfunctionWiring, ETS relay, ECM programming, ECM
P1659Electronic throttle system (ETS) relay – malfunctionWiring, ETS relay, ECM programming, ECM
P1683Throttle motor – default position spring performance problemWiring, throttle sticking/mechanically damaged, throttle motor
P1684Throttle motor – return spring performance problemWiring, throttle sticking/mechanically damaged, throttle motor
P1717Transmission range (TR) switch – open circuitWiring, transmission shift link adjustment, TR switch, ECM programming, ECM
P1730AT – gear shift malfunctionTransmission fluid, mechanical fault, wiring, shift solenoid Al8/D, ECM programming, ECM
P1731AT – gear shift malfunctionTransmission fluid, mechanical fault, wiring, shift solenoid E, AT clutch pressure control solenoid A, ECM programming, ECM
P1732AT- gear shift malfunctionTransmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM
P1733AT – gear shift malfunctionTransmission fluid, mechanical fault, wiring, shift solenoid D, AT clutch pressure control solenoid C, ECM programming, ECM
P1734AT- gear shift malfunctionTransmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM
P1743AT- gear shift malfunctionTransmission fluid, wiring, shift solenoid E, mechanical fault, ECM programming, ECM
P1744AT- gear shift malfunctionTransmission fluid, wiring, shift solenoid E, mechanical fault, ECM programming, ECM
P1745AT- gear shift malfunctionTransmission fluid, mechanical fault
P1780AT- gear shift malfunctionOther AT trouble codes stored, ECM   programming, ECM