Vehicle diagnostics
System overviews and published DTC guides for this vehicle family.
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Fuel system
Learn how fuel pressure, pump-solenoid control, direct injection, mixture feedback, and cylinder variation work together on the 2018-2025 Honda Accord 2.0 Hybrid.
Vehicle network and module communication system
Learn how CAN, LIN, gateway routing, bus-off behavior, module power and grounds, and communication diagnosis work on the 2018-2025 Honda Accord 2.0 Hybrid.
The body control module may be seeing a mismatch between an ignition-one power signal and the ignition-one status reported through the gauge control module side of the body network
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1038 may mean the body control module is not receiving the immobilizer authentication ID over the F-CAN network.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1039 may indicate that the body control module is seeing an immobilizer ID authentication mismatch over the F-CAN network.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1042 may mean the body control module is seeing a mismatch between the backup wiper signal and the front wiper data it expects.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1080 may mean the relay control module is seeing an issue with the IG1 power supply input or with how that IG1 status compares to the body control module message.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1085 may indicate a headlight low-beam power-source abnormality being recognized by the relay control module.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1140 may set when the power window master switch’s recognized driver-window position does not match the actual window position.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1145 may indicate a front passenger power window position detect circuit problem, where the system’s understood window position can disagree with the actual glass position.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B121D may mean the climate control unit is not receiving the expected information from the humidity and in-car temperature sensor.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1228 may indicate the climate control unit is seeing an outside air temperature sensor signal that is lower than expected.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1233 may mean the climate control unit is seeing an abnormal driver-side air mix control motor position signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1235 may indicate that the climate control unit is seeing the driver’s air mix control motor feedback outside the expected range.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1236 may indicate that the climate control unit is seeing an open or abnormal passenger air mix control motor signal circuit.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1237 may indicate that the climate control unit is seeing a low input from the passenger side air mix control motor signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1238 may indicate that the climate control unit is seeing an unexpected passenger air mix control motor signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1240 may indicate that the climate control unit is seeing a mode control motor signal that does not match the expected position behavior for airflow outlet control.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1276 often means the body control module may be receiving an abnormal or conflicting headlight switch position signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1658 may mean the body control module is detecting a possible disconnection or open condition in the rear bumper LF antenna line for the keyless access system.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1664 may mean the body control module is seeing a possible open or disconnected condition in the rear interior LF antenna circuit for the keyless access system.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B18EA may mean the left-side BSI radar unit has stored a fault because it received PCM or automatic-transmission-related failure information through the integrated control module.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B1E77 may indicate an open condition in the right-side BSI radar unit indicator circuit.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B2964 may indicate that the climate control unit is not receiving expected communication from the front climate control switch.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B2983 may indicate the climate control unit is seeing an unexpected signal from the recirculation control motor feedback circuit.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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B2986 may indicate that the climate control unit is seeing an abnormal recirculation control motor feedback signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P000F may indicate that the PCM is seeing high pressure fuel supply behavior that is higher than expected during fuel pressure control.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P006A may indicate that the measured intake airflow and the airflow inferred from pressure-sensor data do not agree as expected.
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P0087 means the fuel rail pressure may be lower than what the control module is trying to command.
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P0088 means the PCM may be seeing fuel rail pressure that is higher than the target pressure.
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P0113 often means the PCM is seeing the intake air temperature sensor 1 signal higher than expected.
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P0172 may mean the PCM is seeing the fuel mixture as richer than expected and is using fuel trim correction to compensate.
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P0328 means the ECM/PCM may be seeing a knock sensor circuit signal that is higher than expected.
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P0339 may indicate that the PCM is seeing an abnormal or inconsistent crankshaft position signal.
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P0344 may mean the PCM is seeing an intermittent loss or interruption in the camshaft position sensor A signal.
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P0369 may indicate an intermittent interruption in the camshaft position sensor B circuit, where the PCM can lose or see an abnormal CMP sensor B signal.
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P0456 may indicate that the EVAP system has detected a very small leak or sealing problem in the fuel vapor control system.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0480 means the control module may be seeing radiator cooling fan performance that does not match the requested fan operation.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P04F1 may indicate that the EVAP diagnostic is not seeing the expected pressure activity from the purge and leak-check system after the engine is stopped.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P050A may indicate that the PCM is not seeing the expected cold-start idle airflow behavior during quick warm-up operation.
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P0532 means the control module may be seeing the A/C pressure sensor signal lower than expected.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0533 means the control module may be seeing an A/C pressure sensor signal voltage that is higher than expected.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P05A0 may indicate the upper shutter grille is stuck or has not completed its initial learning as expected.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0602 may mean the PCM has detected that its programming or update process did not complete correctly.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P060A may indicate a possible internal control module problem in the PCM.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0641 may mean the PCM is detecting an out-of-range sensor reference voltage on a shared reference circuit.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0651 often means the PCM may be detecting an abnormal condition on a sensor reference voltage circuit that feeds multiple sensors or components.
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P0706 may mean the control module is not seeing the expected transmission range switch signal for the selected gear range.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0752 may mean the control module is seeing a hydraulic response that does not match the commanded state of shift solenoid valve A.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0757 may indicate that the transmission control system commanded shift solenoid valve B one way, but the hydraulic pressure response may not have matched what the controller was
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P0841 may mean the control module is seeing a transmission fluid pressure sensor signal that does not match expected performance.
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P0842 may indicate that the ICM is seeing a low transmission fluid pressure sensor signal.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0843 generally means the ICM may be seeing a transmission fluid pressure sensor signal that is higher than expected.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0974 may indicate that the ICM is seeing a mismatch between its command to turn shift solenoid valve A off and the return signal it receives.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0977 may mean the ICM is seeing a high control-circuit condition for shift solenoid valve B, often because the feedback on that circuit does not match what the module expects.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P0A94 may mean the hybrid system is seeing DC-DC converter performance that does not match expected low-voltage system behavior.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P100A may indicate that the ECM or PCM is detecting an electric VTC motor circuit malfunction.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P1659 may mean the PCM is seeing a possible mismatch between commanded relay operation and the power supply input for the electronic throttle control system.
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P1683 may mean the PCM is seeing the throttle valve fail to return to the expected default position.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P16E8 means the integrated control module may not be receiving the shutter grille signal it expects over the LIN communication line.
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P2097 may indicate post-catalyst fuel-trim behavior that the PCM sees as abnormal.
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P2135 often means the PCM may see a mismatch between the throttle position sensor signals.
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P2176 means the PCM may not be able to learn the electronic throttle actuator idle, or fully closed, position correctly.
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P2199 may indicate that the ECM/PCM sees the intake air temperature sensor readings as not agreeing with each other.
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P219C may indicate an abnormal fuel correction or cylinder balance pattern associated with the No. 1 cylinder.
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P219E may indicate the PCM is detecting cylinder air-fuel variation rather than even cylinder contribution.
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P2228 may indicate the PCM is seeing a barometric pressure signal that is lower than expected.
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P2229 may indicate the PCM is seeing the barometric pressure sensor signal higher than expected.
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P2270 may indicate that the secondary heated oxygen sensor, Sensor 2, is reporting a lean-biased signal or is not responding as expected.
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P2279 may mean the PCM is detecting an intake air leak or unexpected air influence, often around the intake, PCV, or purge-related air paths.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P24C0 may indicate that the ECM/PCM is seeing an EVAP leak check module or ELCM pressure-related signal that does not match expected system behavior.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P2610 may indicate the PCM is seeing a possible internal engine-off timer or performance-related concern within the PGM-FI system.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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P2623 means the PCM may be seeing high-pressure fuel pump spill valve behavior that does not match the command it expects.
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U0029 may indicate that the acoustic vehicle alerting control unit is seeing an F-CAN communication line problem.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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U0029 may indicate an F-CAN communication line error seen by the acoustic vehicle alerting control unit.
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U0038 may indicate an F-CAN BUS-OFF communication concern involving the ICM, where the module may not be communicating normally on the DF-CAN B network.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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U0100 may mean the acoustic vehicle alerting control unit is not receiving expected communication data from the PCM.
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U0104 may mean the gauge control module is not receiving expected communication from the driving support system control unit or related radar communication path.
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U0122 may mean the acoustic vehicle alerting control unit is not receiving expected communication from the VSA modulator-control unit.
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U0129 may indicate lost or missing communication between the acoustic vehicle alerting control unit and the electric servo brake control unit.
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U0131 may mean the gauge control module is not receiving expected communication from the EPS control unit.
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U0146 may indicate a communication problem between the PCM and the CAN gateway.
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U0151 may indicate that the PCM is not receiving normal communication from the SRS unit over the PF-CAN M network.
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U0155 may mean the acoustic vehicle alerting control unit is not receiving expected communication from the gauge control module.
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U0199 may indicate that the climate control unit is not receiving expected communication from the power window master switch.
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This code may mean the ICM is not receiving the expected LIN communication from the battery sensor.
Article vehicle: 2018-2025 Honda Accord 2.0Hybrid
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U1281 may mean the automatic lighting control unit is not receiving expected communication from the MICU, also described as the body control module.
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U1288 may indicate that the gauge control module has lost expected communication with the parking and back-up sensor control unit.
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U128D may indicate that the BSI radar unit is not receiving an expected gauge control module signal over B-CAN.
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U128F may indicate that the right side blind spot information radar unit is not receiving expected B-CAN communication from the left side blind spot information radar unit.
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U1297 may indicate that the left side BSI radar unit is not receiving the right side BSI radar unit signal over the B-CAN network.
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U129E may indicate that the integrated control module is not receiving normal body control module information over the F-CAN network.
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