Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Trouble Code Chart: Notes
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other factors.
If a malfunction code is displayed during the DTC check in the check mode, check the circuit for that code listed in DIAGNOSTIC TROUBLE CODE CHART . For the details of each code, turn to the procedure referred to for the respective "DTC No."
| DTC & Detected Item | Trouble Area | Hybrid System Warning Light | ||||
|---|---|---|---|---|---|---|
| B2799: IMMOBILIZER MALFUNCTION | Wire Harness, Immobilizer System | (1) | ||||
| C2692: REGENERATIVE BRAKE CHECK | ..... | (1) | ||||
| C2693: REGENERATIVE BRAKE CHECK | ..... | (2) | ||||
| P1120: ACCELERATOR PEDAL POSITION SENSOR CIRCUIT MALFUNCTION | Accelerator Pedal Position Sensor, Wire Harness | (1) | ||||
| P1520: STOP LIGHT SWITCH (CRUISE CONTROL SYSTEM) MALFUNCTION | Stop Light Switch, Wire Harness, Brake ECU | (2) | ||||
| P1566: CRUISE CONTROL SYSTEM MALFUNCTION | Stop Light Switch, Brake ECU, Wire Harness | (2) | ||||
| P1600: BATT MALFUNCTION | HV Fuse, Wire Harness | (1) | ||||
| P1780: PARK/NEUTRAL POSITION SWITCH SYSTEM MALFUNCTION | Park/Neutral Position Switch, Wire Harness | (1) | ||||
| P3000: HV BATTERY MALFUNCTION | HV Battery System, High Voltage Fuse, Power Cable, HV Battery Cooling System | (1)(2) | ||||
| P3001: HV BATTERY ECU MALFUNCTION | Battery ECU | (1) | ||||
| P3004: POWER CABLE MALFUNCTION | Power Cable, HV Battery System, Service Plug, System Main Relay, Converter & Inverter Assembly | (1)(2) | ||||
| P3100: HV ECU MALFUNCTION | Wire Harness, HV ECU, ECM, Crankshaft Position Sensor, Camshaft Position Sensor, Ignition Switch | (1) | ||||
| P3101: ENGINE SYSTEM MALFUNCTION | Engine, HV Transaxle | (1) | ||||
| P3105: BATTERY ECU COMMUNICATION CIRCUIT MALFUNCTION | Wire Harness, Battery ECU | (1) | ||||
| P3106: ECM COMMUNICATION CIRCUIT MALFUNCTION | Wire Harness, ECM | (1)(2) | ||||
| P3107: AIRBAG ECU COMMUNICATION CIRCUIT MALFUNCTION | Wire Harness, Airbag Sensor Assembly | (1) | ||||
| P3108: A/C AMPLIFIER COMMUNICATION CIRCUIT MALFUNCTION | Wire Harness, A/C Amplifier | (2) | ||||
| P3109: BRAKE ECU COMMUNICATION CIRCUIT MALFUNCTION | Wire Harness, Brake ECU | (1) | ||||
| P3110: IGCT RELAY MALFUNCTION | Wire Harness, IGCT Relay | (1) | ||||
| P3115: SYSTEM MAIN RELAY MALFUNCTION | Wire Harness, System Main Relay, HV ECU | (1) | ||||
| P3120: HV TRANSAXLE MALFUNCTION | HV Transaxle, Wire Harness, System Main Relay | (1) | ||||
| P3125: CONVERTER & INVERTER ASSEMBLY MALFUNCTION | Converter & Inverter Assembly, Wire Harness | (1) | ||||
| P3130: INVERTER COOLING SYSTEM MALFUNCTION | Inverter Water Pump, Wire Harness, IG2 Relay, Electric Cooling Fan System | (1) | ||||
| P3135: CIRCUIT BREAKER SENSOR MALFUNCTION | Circuit Breaker Sensor, Wire Harness | (1) | ||||
| P3140: INTERLOCK MALFUNCTION | Interlock Switch, Inverter Terminal Cover, Converter & Inverter Assembly, Wire Harness | (1) | ||||
| P3145: VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION |
Wire Harness | (2) | ||||
|
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NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.