Lexus ES: 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 power 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 malfunction
DESCRIPTION
Refer to the description for DTC P1C6A9F.
Click here .gif)
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P1C6C9F | Generator Shutdown Stuck Off | When the HV gate block function check is performed (when the power 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 Light: Comes on |
| DTC No. | Data List |
|---|---|
| P1C6C9F |
|
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.
Click here
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (READY) and wait for 30 seconds or more.
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (IG) and turn the Techstream 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 or N/A, perform driving pattern again.
PROCEDURE
| 1. | REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS |
Click here
| 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 the hybrid vehicle transaxl
High Voltage Power Resource Circuit Consumption Circuit Short (P1C8149,P1C8249)
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 short circuit malfunction
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.
SEE MORE:
Transmitter ID1 Operation Stop (C2111-C2114)
DESCRIPTION The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. The measured values are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. The ECU compares the measured tir
Operation Panel Disconnected (B15D9)
DESCRIPTION The air conditioning control assembly and multi-display assembly are connected by an AVC-LAN communication line. When an AVC-LAN communication error occurs between the multi-display assembly and air conditioning control assembly, these DTCs will be stored. DTC No. Detection Item D
