How To Proceed With Troubleshooting

Total OBD & ECU Auto Diagnostics

TOAD Auto Diagnostics

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HINT:

Use these procedures to troubleshoot the seat belt warning system.

*: Use the intelligent tester.

VEHICLE BROUGHT TO WORKSHOP

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INSPECT BATTERY VOLTAGE

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Standard voltage: 11 to 14 V

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

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the intelligent tester to check if the CAN communication system is functioning normally. Result:

Result

Proceed to

DTC is not output

A

DTC is output

B

GO TO CAN COMMUNICATION SYSTEM

GO TO CAN COMMUNICATION SYSTEM

PROBLEM SYMPTOMS TABLE

Result:

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

Go to step 6

OVERALL ANALYSIS AND TROUBLESHOOTING*

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(b) TERMINALS OF ECU (see page SB-14)

REPAIR OR REPLACE

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CONFIRMATION TEST

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