Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Brake Warning System Schematics Connector End View Reference: Hydraulic Brake Connector End Views and Computer/Integrating Systems Connector End Views in Computer/Integrating Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify a fault is present. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the brake warning indicator illuminate? | Go to Step 4 | Go to Step 15 |
4 |
Does the Park Brake status change from Released to Set? | Go to Step 5 | Go to Step 6 |
5 |
Does the brake warning indicator illuminate? | Go to Step 12 | Go to Step 7 |
6 |
Does the brake warning indicator illuminate? | Go to Step 11 | Go to Step 8 |
7 | Connect a fused jumper wire between the brake fluid level switch output circuit and a good ground. Does the brake warning indicator illuminate? | Go to Step 9 | Go to Step 10 |
8 | Test park brake switch output circuit for an open between the park brake switch and the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 13 |
9 | Repair the open in the ground circuit of the brake fluid level switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
10 | Test the brake fluid level switch input circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14 |
11 | Replace the park brake switch. Refer to Parking Brake Indicator Switch Replacement in Park Brake. Did you complete the replacement? | Go to Step 16 | -- |
12 | Replace the brake fluid level switch. Refer to Master Cylinder Reservoir Replacement . Did you complete the replacement? | Go to Step 16 | -- |
13 |
Important: Perform the set up procedure for the BCM. Replace the BCM. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | Go to Step 16 | -- |
14 |
Important: Following electronic brake control module (EBCM) replacement, use the scan tool to perform the Tire Size Calibration procedure. Replace the EBCM. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | Go to Step 16 | -- |
15 | Replace the instrument panel cluster. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | Go to Step 16 | -- |
16 | Verify the system is repaired. Does the system operate normally? | System OK | Go to Step 3 |
