Toyota Corolla Cross: Generator Shutdown Stuck Off (P1C6C9F)
DTC SUMMARY
MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU detects malfunctions which prevent the generator (MG1) inverter shutdown circuit from shutting down the hybrid vehicle control system. Detection is performed during the shutdown sequence when the ignition switch is turned off. If generator (MG1) inverter operation is detected after a shutdown signal was sent to the generator (MG1) inverter, the hybrid vehicle control ECU will determine that there is a malfunction and store this DTC.
The cause of this malfunction may be the following:
Inverter with converter assembly SDWN (MG1) internal circuit malfunction- Inverter with converter assembly malfunction
DESCRIPTION
Refer to the description for DTC P1C6A9F.
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|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P1C6C9F | Generator Shutdown Stuck Off |
When the HV gate block function check is performed (when the ignition switch is turned from ON (READY) to off), the GSDN (MG1 shutdown) signal is sent but the generator (MG1) inverter current and voltage (VH) do not decrease. (1 trip detection logic) |
Inverter with converter assembly |
Does not come on | Master Warning: Comes on | SAE Code: P1C6C |
CONFIRMATION DRIVING PATTERN
HINT:
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch to ON (READY) and wait for 30 seconds or more.
- Turn the ignition switch off and wait for 30 seconds or more.
- Turn the ignition switch to ON and turn the GTS on.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
- Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.
PROCEDURE
|
1. | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
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| NEXT | .gif) | END |
READ NEXT:
Engine Failed to Start Mechanical Linkage Failure (P1C7779)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when the hybrid vehicle control ECU determines that the hybrid vehicle transaxle assembly has seized or that there is a hybrid vehicle transaxle
High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction (P1C8349)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects a power supply malfunction.
High Voltage Power Resource Circuit Short during Ready ON (P1C8449)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects an open circuit malfunction.
SEE MORE:
Transmission Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Transmission Control ECU Communication Stop Mode
Communication stop for "TCM" is indicated on the "Communication Bus Check"
screen of the GTS.
TC
Rear Door Courtesy Switch Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of the rear door courtesy light switch assembly. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
for HEV Model: Click here
