Inspection and Verification (Start Testing Here)

1. Verify the customers concern by operating the vehicle and applying the brakes under different conditions to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:
Visual Inspection Chart
Mechanical
- Parking brake cable binding.
- Improperly inflated tires.
- Mismatched wheels or tires.

Electrical
- Blown fuses - Power
Distribution Box:
- Fuse 13 (40A)
- Fuse 18 (30A)
- Blown fuses - Fuse junction panel:
- Fuse 9 (10A)
- Fuse 28 (15A)
- Fuse 12 (5A)
- Damaged connections.
- Disconnected connectors.

3. If inspection reveals an obvious concern that is readily identified, repair the concern before continuing with Inspection and Verification.
4. If the concern remains after inspection, connect the New Generation Star (NGS) Tester 418-F048 or equivalent scan tool to the Data Link Connector (DLC) located beneath the instrument panel to perform DATA LINK DIAGNOSTICS test. If the scan tool responds with NO RESPONSE / NOT EQUIPPED for the anti-lock brake control module, GO to Pinpoint Test E. If the DATA LINK DIAGNOSTICS test is passed for the anti-lock brake control module retrieve continuous DTCs and execute Self Test Diagnostics for the anti-lock brake control module to retrieve current DTCs. E Anti-Lock Brake Control Module
5. If self-test is passed and no DTCs are retrieved, GO to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures
6. If DTCs are retrieved, GO to the Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. Diagnostic Trouble Code Descriptions
7. If the anti-lock brake control module cannot be accessed by the scan tool, GO to Pinpoint Test E. E Anti-Lock Brake Control Module

Service Bay Diagnostic System (SBDS) 418-F001 may also be used to diagnose this system.