Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Brake Warning System Check performed? | -- | Go to Step 2 | |
2 | Does the vehicle have P/B booster fluid flow alarm? | -- | Go to Step 22 | Go to Step 3 |
3 |
Does the brake indicator remain on? | -- | Go to Step 4 | Go to Step 5 |
4 | Disconnect the brake pressure differential switch connector. Does the brake indicator remain on? | -- | Go to Step 6 | Go to Step 7 |
5 | Is the park brake warning switch properly adjusted? | -- | Go to Step 36 | Go to Step 37 |
6 | Disconnect electronic brake control module connector C1. Does the brake indicator remain lit? | -- | Go to Step 8 | Go to Step 9 |
7 | Diagnose the hydraulic brake system. Refer to Brake System Testing . Does the brake indicator run correctly? | -- | -- | |
8 | Disconnect the daytime running lamp control module slide board connector. Does the brake indicator remain on? | -- | Go to Step 10 | Go to Step 11 |
9 | Diagnose the antilock brake system. Refer to Diagnostic System Check - ABS . Does the brake indicator run correctly? | -- | -- | |
10 |
Does the test lamp light? | -- | Go to Step 12 | Go to Step 13 |
11 | Connect an unpowered test lamp from daytime running lamp control module connector cavity H to B+. Does the test lamp light? | -- | Go to Step 14 | Go to Step 15 |
12 | Repair the short to ground in the TAN/WHT (33) wire between the instrument cluster and the daytime running lamp control module. Does the brake indicator turn off? | -- | -- | |
13 | Replace the instrument cluster printed circuit. Does the brake indicator turn off? | -- | -- | |
14 | Connect an unpowered test lamp from daytime running lamp control module connector cavity F to B+. Does the test lamp light? | -- | Go to Step 16 | Go to Step 17 |
15 | Locate and repair the open in BLK (150) wire between the daytime running lamp control module and ground G201. Does the brake indicator turn off? | -- | -- | |
16 | Locate and repair the short to ground in the PPL (680) wire between the daytime running lamp control module and the brake pressure differential switch/electronic brake control module. Does the brake indicator turn off? | -- | -- | |
17 | Connect an unpowered test lamp from daytime running lamp control module connector cavity B to B+. Does the test lamp light? | -- | Go to Step 18 | Go to Step 19 |
18 | Locate and repair the short to ground in the LT BLU (1134) wire between the daytime running lamp control module and the park brake warning switch. Does the brake indicator turn off? | -- | -- | |
19 |
Does the test lamp light? | -- | Go to Step 20 | Go to Step 21 |
20 | Locate and repair short to ground in the LT BLU (1134) wire between the daytime running lamp control module and the park brake warning switch. Does the brake indicator turn off? | -- | -- | |
21 | Replace the daytime running lamp control module. Does the brake indicator turn off? | -- | -- | |
22 |
Does the brake indicator turn off? | -- | Go to Step 23 | Go to Step 4 |
23 | Measure the P/B booster fluid pressure and flow. Refer to Power Steering System Test . Is the P/B booster fluid flow or pressure low? | -- | Go to Step 24 | Go to Step 25 |
24 | Refer to Power Steering System Test for information on diagnosis and repair. Does the brake indicator turn off? | -- | -- | |
25 | With the engine still running, connect an unpowered test lamp from connector C217 pin A to B+. Does the test lamp light? | -- | Go to Step 26 | Go to Step 27 |
26 |
Does the test lamp light? | -- | Go to Step 28 | Go to Step 29 |
27 | Replace the daytime running lamp control module. Does the brake indicator turn off? | -- | -- | |
28 |
Does the test lamp light? | -- | Go to Step 30 | Go to Step 31 |
29 |
Does the brake indicator turn off? | -- | -- | |
30 |
Does the test lamp light? | -- | Go to Step 32 | Go to Step 33 |
31 | Replace the P/B booster fluid flow alarm switch. Does the brake indicator turn off? | -- | -- | |
32 |
Does the test lamp light? | -- | Go to Step 34 | Go to Step 35 |
33 |
Does the brake indicator turn off? | -- | Go to Step 34 | |
34 | Repair the short to ground in the PNK (849) wire between P/B booster fluid pressure alarm switch and the P/B booster fluid flow and pressure alarm delay module. Does the brake indicator turn off? | -- | -- | |
35 | Replace the instrument cluster printed circuit. Does the brake indicator turn off? | -- | -- | |
36 | Replace the park brake warning switch. Does the brake indicator run correctly? | -- | -- | |
37 | Properly adjust the park brake warning switch. Does the brake indicator run correctly? | -- | Go to Step 36 |
