ELECTRONICALLY CONTROLLED BRAKE SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code	DTC Name
	HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

*: Use the intelligent tester.

PROCEDURE

VEHICLE BROUGHT TO WORKSHOP

Result

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NEXT

CUSTOMER PROBLEM ANALYSIS

Interview the customer and confirm the problem Click here.

Result

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NEXT

CHECK DTC AND FREEZE FRAME DATA*

Check and record DTCs and Freeze Frame Data.
Clear the DTCs and Freeze Frame Data (See page for DTC Check/Clear, and Click here for Freeze Frame Data).

Reconfirm the DTCs.

Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data (See page for DTC Check/Clear, and Click here for Freeze Frame Data).

Tech Tips

When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system before repairing each corresponding sensor Click here.
If any of DTCs U0123/62, U0124/95, U0126/63, and U0293/59 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit Click here.
If the intelligent tester cannot communicate with the skid control ECU, inspect the CAN communication system Click here.
If there is no response from the skid control ECU, inspect the IG1 circuit of the skid control ECU Click here.

Result

Result	Proceed to
DTC is output	A
DTC is not output (Problem symptom does not occur)	B
DTC is not output (Problem symptom occurs)	C

SYMPTOM SIMULATION Click here

GO TO STEP 6 Click here

DIAGNOSTIC TROUBLE CODE CHART

Proceed to Diagnostic Trouble Code Chart Click here.

Result

Proceed to
NEXT

GO TO STEP 7 Click here

SYMPTOM SIMULATION

Proceed to How to Proceed with Troubleshooting Click here.

Result

Proceed to
NEXT

PROBLEM SYMPTOMS TABLE

Proceed to Problem Symptoms Table Click here.

Result

Proceed to
NEXT

CIRCUIT INSPECTION*

Result

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NEXT

IDENTIFICATION OF PROBLEM

Result

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NEXT

REPAIR OR REPLACEMENT

Result

Proceed to
NEXT

CONFIRMATION TEST*

Result

Proceed to
NEXT

END