POWER DISTRIBUTION: POWER INTEGRATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM10000000263S6
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - ]
Title: POWER DISTRIBUTION: POWER INTEGRATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.

3.	CHECK COMMUNICATION FUNCTION OF CXPI COMMUNICATION SYSTEM*

(a) Using the GTS, check the CXPI communication function to ensure that there are no malfunctions in the communication system.

DTCs output

No DTCs output

4.	CHECK VEHICLE CONTROL HISTORY (RoB)*

(a) Using the GTS, check for Vehicle Control History (RoB).

Tester Display
Vehicle Control History (RoB)

(b) If the vehicle control history (RoB) is output, record it.

Result	Proceed to
Vehicle Control History (RoB) is not output	A
Vehicle Control History (RoB) is output	B

5.	CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

Click here

(b) Clear the DTCs.

DTCs output

GO TO DIAGNOSTIC TROUBLE CODE CHART

No DTCs output

6.	PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table.

Click here

Fault is listed in problem symptoms table

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

Fault is not listed in problem symptoms table

7.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here

(b) Terminals of ECU

Click here

8.	ADJUST, REPAIR OR REPLACE

END