1

Install a scan tool.

Does the scan tool power up?

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Go to Step 2

Go to Scan Tool Does Not Power Up in Data Link Communications

1. Turn ON the ignition, with the engine OFF.
2. Attempt to establish communications with the EBCM.

Does the scan tool communicate with the EBCM?

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Go to Step 3

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

Select the ABS-TCS-TPM (if equipped) display DTC function on the scan tool.

Does the scan tool display any ABS DTCs, except DTC C1245?

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Go to Diagnostic System Check - ABS in Antilock Brake System

Go to Diagnostic Trouble Code (DTC) List/Type