How To Proceed With Troubleshooting
BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HOW TO PROCEED WITH TROUBLESHOOTING
HINT: *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
HINT: If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT -- Continue to next step.
3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system.
Result
B -- PROCEED TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
4. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM*
(a) Using the Techstream, inspect the multiplex communication function to ensure there are no malfunctions in the communication system.
Result
HINT: The skid control ECU sends the signals of each warning light to the gateway ECU via CAN communication, and the gateway ECU sends the signals to the combination meter via the multiplex communication system (BEAN).
B -- PROCEED TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
5. CHECK DTC AND FREEZE FRAME DATA*
NEXT -- Continue to next step.
6. CLEAR DTC AND FREEZE FRAME DATA*
NEXT -- Continue to next step.
7. PROBLEM SYMPTOM CONFIRMATION
NEXT -- Continue to next step.
8. DTC CHECK AND CLEAR*
NEXT -- Continue to next step.
9. PROBLEM SYMPTOM CONFIRMATION
Result
B -- GO TO STEP 11
A -- Continue to next step.
10. SYMPTOM SIMULATION
NEXT -- Continue to next step.
11. CHECK FOR DTC (OTHER THAN CAN AND MULTIPLEX COMMUNICATION SYSTEM DTC)*
Result
B -- GO TO STEP 13
A -- Continue to next step.
12. PROBLEM SYMPTOMS TABLE
NEXT -- GO TO STEP 14
13. DTC CHART
NEXT -- Continue to next step.
14. CIRCUIT INSPECTION*
NEXT -- Continue to next step.
15. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.
16. REPAIR OR REPLACE
NEXT -- Continue to next step.
17. CONFIRMATION TEST*
NEXT -- END