Test Description
The numbers below refer to step numbers on the diagnostic table.
- 2: This step tests for correct module application.
DTC 78
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views |
|||
| 1 | Did you perform A Diagnostic System Check - ABS? | Go to Step 2 | Go to Diagnostic System Check - ABS |
| 2 | With a scan tool, verify that the correct EBCM and PCM are installed on the vehicle. Are the correct modules installed? |
Go to Step 3 | Go to Step 4 |
| 3 | Use the scan tool in order to read the DTCs. Are other DTCs present? |
Go to Diagnostic Trouble Code (DTC) List | Go to Step 5 |
| 4 | Replace the appropriate control module. Refer to Electronic Brake Control Module Replacement or Powertrain Control Module (PCM) Replacement
in Engine Controls - 5.7L. Did you complete the replacement? |
Go to Step 7 | - |
| 5 |
|
Go to Step 6 | Go to Diagnostic Aids |
| 6 | Replace the electronic brake control module (EBCM). Refer to Electronic Brake Control Module Replacement . Did you complete the replacement? |
Go to Step 7 | - |
| 7 |
|
Go to Step 2 | System OK |