P3004-803

P310 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P3004-803: Power Cable Malfunction

DTC P3004-803 - Power Cable Malfunction

DESCRIPTION

The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects the following malfunction.






INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 5 minutes before touching any of the high-voltage connectors or terminals. After waiting for 5 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT: Waiting for at least 5 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE

1. CHECK DTC OUTPUT (HV)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
Result:










B -- GO TO DTC CHART Diagnostic Trouble Code Descriptions
A -- Continue to next step.
2. CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Clear DTCs and freeze frame data.
NEXT -- Continue to next step.
3. CHECK DTC OUTPUT (HV)
(a) Turn the power switch on (Ready).
(b) Allow the vehicle to creep back and forth.
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
Result:






B -- GO TO DTC CHART Diagnostic Trouble Code Descriptions
A -- REPLACE HV RELAY ASSEMBLY