Brake Control / Dynamic Control Systems

How To Proceed With Troubleshooting

~2min read
CAUTION / NOTICE / HINT

HINT:

*: Use the Techstream.

PROCEDURE
  1. VEHICLE BROUGHT TO WORKSHOP

NEXT
  1. CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer and confirm the trouble. (See page ).


HINT:

Interview the customer to confirm the following:

  • History of brake fluid replacement.
  • Whether the engine was stopped intentionally when driving.
  • Whether the brake and accelerator pedals were depressed simultaneously.
NEXT
  1. CHECK DTC AND FREEZE FRAME DATA*

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

(b) Clear the DTCs and Freeze Frame Data (See page for DTC Check/Clear, or See page
for Freeze Frame Data).


(c) Reconfirm the DTCs.

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


HINT:

  • When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system before repairing each corresponding sensor (See page ).

  • If any of the DTCs U0100/65, U0123/62, U0124/95 and U0126/63 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit (See page
    ).

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


B

GO TO STEP 5


C

GO TO STEP 6

A
  1. DIAGNOSTIC TROUBLE CODE CHART

(a) Proceed to Diagnostic Trouble Code Chart (See page ).



NEXT

GO TO STEP 7

  1. SYMPTOM SIMULATION

(a) Proceed to How to Proceed with Troubleshooting (See page ).



NEXT

GO TO STEP 6

  1. PROBLEM SYMPTOMS TABLE

(a) Proceed to Problem Symptoms Table (See page ).


NEXT
  1. CIRCUIT INSPECTION*

NEXT
  1. IDENTIFICATION OF PROBLEM

NEXT
  1. REPAIR OR REPLACEMENT

NEXT
  1. CONFIRMATION TEST*


NEXT

END

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.