DTC P1CE6-11: AC Inverter Status Signal Circuit Short to Ground; DTC P1CE6-15: AC Inverter Status Signal Circuit Short to Auxiliary Battery or Open [08/2023 - ]: Procedure

Pre-procedure1

• Check that the service plug grip is not installed.
  NOTE:

  After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

• Disconnect the H58 voltage inverter assembly connector.
  NOTE:

  If the H58 connector is disconnected with the auxiliary battery connected, P1CE6-15 may be detected. Therefore, check that the cable is disconnected from the negative (-) auxiliary battery terminal before starting the operation.

• Connect the cable to the negative (-) auxiliary battery terminal.
• Turn the ignition switch to ON.

• Measure the voltage according to the value(s) in the table below.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *a	Front view of wire harness connector (to Voltage Inverter Assembly)

  Standard Voltage

  Tester Connection	Condition	Specified Condition	Result
  H58-1 (VAIN) - Body ground	Ignition switch ON	4.5 to 5.5 V	V

  NOTE:

  If the ignition switch is turned to ON with the voltage inverter assembly connector disconnected, other DTCs will be stored. Therefore, clear the DTCs after checking.

  Result

  Proceed to
  OK
  NG

Post-procedure1

• Turn the ignition switch off.
• Disconnect the cable from the negative (-) auxiliary battery terminal.
• Reconnect the voltage inverter assembly connector.

Result: 

OK 

REPLACE VOLTAGE INVERTER. Refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

See step  2

Pre-procedure1

• Check that the service plug grip is not installed.
  NOTE:

  After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

• Disconnect the H58 voltage inverter assembly connector.
  NOTE:

  If the H58 connector is disconnected with the auxiliary battery connected, P1CE6-15 may be detected. Therefore, check that the cable is disconnected from the negative (-) auxiliary battery terminal before starting the operation.

• Disconnect the H124 electric vehicle charger assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  H58-1 (VAIN) - H124-56 (VAIN)	Ignition switch off	Below 1 Ω	Ω
  H58-1 (VAIN) and H124-56 (VAIN) - Body ground and other terminals	Ignition switch off	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• Reconnect the electric vehicle charger assembly connector.
• Reconnect the voltage inverter assembly connector.

Result: 

OK 

REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR