Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: Brake warning indicator remains illuminated at all times with the ignition switch turned ON, parking brake released, and brake fluid level is normal. | ||||
1 | Where you sent here from the Brake Warning System Check? | -- | ||
2 | Install a scan tool, and select the display DTC function. Is DTC C1247 displayed as current? | -- | Go to DTC C1247 Brake Pressure Differential Switch Activated | |
3 |
Does the scan tool indicate the brake lamp input OFF? | -- | ||
4 | Does the scan tool indicate the brake fluid level OK? | -- | ||
5 | Does the scan tool indicate the park brake switch inactive? | -- | ||
6 | Disconnect the brake pressure differential switch. Does the scan tool indicate the brake lamp input OFF? | -- | ||
7 | Verify the hydraulic brake system is operating properly, and is not leaking brake fluid. If ok replace the brake pressure differential switch. Refer to Combination Valve Replacement . Is the repair complete? | -- | -- | |
8 | Inspect and repair the short to ground in circuit 1659, if ok replace the EBTCM. Refer to Electronic Brake Control Module Replacement . Is the repair complete? | -- | -- | |
9 | Disconnect the brake fluid level switch connector. Does the scan tool indicate the brake fluid level OK? | -- | ||
10 | Replace the brake fluid level switch. Refer to Brake Fluid Level Indicator Switch Replacement . Is the repair complete? | -- | -- | |
11 | Inspect and repair the short to ground in circuit 333, if ok replace the IPC. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | -- | |
12 | Disconnect the parking brake switch connector. Does the scan tool indicate the parking brake switch inactive? | -- | ||
13 | Replace the parking brake lever assembly. Refer to Park Brake Lever Assembly Replacement . Is the repair complete? | -- | -- | |
14 | Inspect and repair the short to ground in circuit 33, if ok replace the IPC. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | -- | |
15 | Replace the IPC. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | -- | |
