DTC P1CE2-13: PCU Interlock Circuit Open; DTC P1CE2-92: PCU Interlock Performance or Incorrect Operation [12/2019 - 11/2023]: Procedure

1. Check for DTCs.

   Powertrain > Hybrid Control > Trouble Codes 

   Powertrain > Motor Generator > Trouble Codes 

   Result

   Result	Proceed to
   P1CE2-13 or P1CE2-92 only is output, or DTCs except the ones in the table below are also output.	A
   DTCs of Hybrid Control System in the tables below are output.	B
   DTCs of Motor Generator Control System in the tables below are output.	C

   Malfunction Content	System	Relevant DTC
   Microcomputer malfunction	Hybrid Control System	P0606-47	Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
   		P0606-87	Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message
   		P060A-47	Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure
   		P060A-87	Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message
   		P060B-49	Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure
   		P060B-71	Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck
   		P060B-1C	Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range
   		P1CE3-49	Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure
   		P1CE3-71	Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck
   		P1CE3-1C	Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range
   		P060A-45	Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure
   		P060A-44	Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure
   		P060A-29	Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid
   		P060A-49	Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure
   		P0A1B-49	Drive Motor "A" Control Module Internal Electronic Failure
   	Motor Generator Control System	P0A1B-1F	Generator Control Module Circuit Intermittent
   Power source circuit malfunction	Hybrid Control System	P0688-1F	ECM/PCM Power Relay Sense Circuit Intermittent
   Communication system malfunction	Hybrid Control System	P3123-87	Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
   System malfunction	Hybrid Control System	P1C9E-9F	Hybrid/EV System Reset Stuck Off

   HINT: 

   • P1CE2-13 or P1CE2-92 may be output as a result of the malfunction indicated by the DTCs above.
     1. The chart above is listed in inspection order of priority.
     2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
2. Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART (HYBRID CONTROL SYSTEM) 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

Result: 

C 

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)  . Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

Result: 

A 

See step  2

Refer to PROCEDURE - Step 3

Result

Result: 

NEXT 

See step  3

1. Check if DTCs are output.

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   P1CE2-13 or P1CE2-92 is output again.	A
   Neither P1CE2-13 or P1CE2-92 is output again.	B

   HINT: 

   Check if the same DTC is output.

2. Turn the ignition switch off.

Result: 

B 

See step  4

Result: 

A 

See step  4

1. 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 repair information because this may cause a malfunction.

2. Check if the inverter cover of the inverter with converter assembly is installed correctly.

   OK

   The inverter cover is installed correctly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL PARTS CORRECTLY 

Result: 

OK 

See step  5

1. 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 repair information because this may cause a malfunction.

2. Check if the HV floor under wire (rear traction motor cable) is connected correctly.

   OK

   The HV floor under wire (rear traction motor cable) is connected correctly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL PARTS CORRECTLY 

Result: 

OK 

See step  6

1. 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 repair information because this may cause a malfunction.

2. Remove the inverter cover from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Check the condition of the inverter cover interlock.

   OK

   Dirt or foreign matter has not entered the connectors and there is no evidence of contamination.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Inverter Cover

4. Install the inverter cover.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE INVERTER COVER 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  7

1. 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 repair information because this may cause a malfunction.

2. Disconnect the HV floor under wire (rear traction motor cable) from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check the condition of HV floor under wire (rear traction motor cable) interlock.

   OK

   Dirt or foreign matter has not entered the connectors and there is no evidence of contamination.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	HV Floor Under Wire (Rear Traction Motor Cable)

4. Connect the HV floor under wire (rear traction motor cable) to the inverter with converter assembly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE INVERTER WITH CONVERTER ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

NG 

REPLACE FLOOR UNDER WIRE