Toyota CH-R Service Manual: How To Proceed With Troubleshooting

Toyota CH-R Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer and confirm the problem.

Click here

3.	CHECK DTC AND FREEZE FRAME DATA*

(a) Check and record DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

Chassis > ABS/VSC/TRAC/EPB > Trouble Codes

(b) Clear the DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

Chassis > ABS/VSC/TRAC/EPB > Clear DTCs

(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

Chassis > ABS/VSC/TRAC/EPB > Trouble Codes

HINT:

When CAN communication system DTCs are output, repair the CAN communication system first.
If DTC U0100, U0123, U0126 and/or U0142 are among the CAN communication DTCs that are output, first use the Data List to check for a momentary open circuit.
If the Techstream cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.
If there is no response from the skid control ECU (brake actuator assembly), inspect the +BS circuit of the skid control ECU (brake actuator assembly).

Result	Proceed to
DTCs are not output. (Problem symptom does not occur.)	A
DTCs are not output. (Problem symptom occur.)	B
DTCs are output.	C

GO TO STEP 5

GO TO STEP 6

4.	SYMPTOM SIMULATION

(a) Proceed to How to Proceed with Troubleshooting.

5.	PROBLEM SYMPTOMS TABLE

(a) Proceed to Problem Symptoms Table.

Click here

GO TO STEP 7

6.	DIAGNOSTIC TROUBLE CODE CHART

(a) Proceed to Diagnostic Trouble Code Chart.

Click here

7.	CIRCUIT INSPECTION*

8.	IDENTIFICATION OF PROBLEM

9.	REPAIR OR REPLACEMENT

10.	CONFIRMATION TEST*

END

Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS CHECK FOR INTERMITTENT PROBLEMS HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected us ...

Calibration

CALIBRATION DESCRIPTION (a) Refer to the table below and then perform the necessary operation according to the part to be replaced in order to perform calibration. Parts to be Replaced ...

Other materials:

Toyota CH-R Service Manual > Lighting (int): Vanity Light Bulb
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Toyota CH-R Service Manual > Airbag System: Short in Rear Pretensioner Squib LH Circuit (B1925/78-B1928/78)
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Toyota CH-R Service Manual: How To Proceed With Troubleshooting

Check For Intermittent Problems

Calibration

Other materials:

Toyota C-HR (AX20) 2023-2025 Owner's Manual

Toyota CH-R Owners Manual

Toyota CH-R Service Manual