Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Has the brake warning system check been performed? | -- | Go to Step 2 | Go to Brake Warning System Check in 1999 C/K service manual |
2 | Disconnect the brake pressure warning switch. Is the brake warning indicator illuminated? | -- | Go to Step 6 | Go to Step 3 |
3 | Connect a DMM between cavities A and B of the brake pressure warning switch. Is there continuity? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the brake pressure warning switch. Refer to brake pressure warning switch replacement in 1999 C/K service manual. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
5 | Locate and repair the short to ground in CKT 680 (PPL) between the electronic brake control module (EBCM) connector C1 and the brake warning switch connector. Refer to Wiring Repairs in wiring. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
6 | Disconnect the electronic brake control module (EBCM) connector C1. Is the brake warning indicator illuminated? | -- | Go to Step 7 | Go to Step 9 |
7 | Disconnect the park brake warning switch connector. Is the brake warning indicator illuminated? | -- | Go to Step 10 | Go to Step 8 |
8 | Adjust or replace the park brake warning switch. Refer to park brake warning switch adjustment in 1999 C/K service manual. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
9 | Replace the electronic brake control module (EBCM). Refer to electronic brake control module replacement in 1999 C/K service manual. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
10 |
Is battery voltage present? | -- | Go to Step 11 | Go to Step 12 |
11 | Locate and repair the short to ground in CKT 33 (TAN/WHT) between the instrument cluster connector and the EBCM connector C1 or between the park brake warning switch connector. Refer to Wiring Repairs in wiring. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
12 | Repair or replace the instrument cluster. Refer to Instrument Cluster Replacement in instrument panel. Is the repair complete? | -- | Go to Brake Warning System Check in 1999 C/K service manual | -- |
