Brake Warning Indicator Inoperative Base
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Brake Warning System Check performed? | -- | Go to Step 2 | |
2 |
Is the brake indicator illuminated? | -- | Go to Step 6 | Go to Step 3 |
3 |
Is the brake indicator illuminated? | -- | Go to Step 7 | Go to Step 4 |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 8 |
5 |
Is continuity present? | -- | Go to Step 6 | Go to Step 9 |
6 |
Is the brake indicator illuminated while the ignition switch is in START? | -- | Go to Step 10 | Go to Step 11 |
7 | Adjust the park brake warning switch. Is the brake indicator illuminated? | -- | Go to Step 25 | |
8 | Repair the open in the PNK (39) wire between the IP fuse block connector cavity J7 and the instrument cluster connector cavity B17. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
9 | Repair the open in the TAN/WHT (33) wire between the instrument cluster connector cavity A13 and the daytime running lamp control module connector cavity E. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
10 |
Is continuity present? | -- | Go to Step 12 | Go to Step 24 |
11 |
Does the brake indicator light? | -- | Go to Step 13 | Go to Step 14 |
12 |
Is continuity present in one direction only? | -- | Go to Step 15 | Go to Step 16 |
13 | Test the ignition switch ground connection from connector C200 cavity B5 to G201. Is the connection OK? | -- | Go to Step 26 | Go to Step 27 |
14 | Repair the open in the LT BLU (1134) wire between the daytime running lamp control module connector cavity B and the ignition switch. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
15 |
Is continuity present in one direction only? | -- | Go to Step 17 | Go to Step 18 |
16 | Is there an open in the TAN/WHT (33) wire or in the BLK/YEL (1471) wire between connector C217 terminal A and the P/B booster fluid flow pressure alarm delay module? | -- | Go to Step 28 | Go to Step 29 |
17 |
Is continuity present? | -- | Go to Step 19 | Go to Step 20 |
18 | Repair the open in the TAN/WHT (33) wire or the PPL (680) wire between daytime running lamp control module connector cavity F and the brake pressure differential switch connector cavity A. Does the brake indicator now operate as designed? | -- | Go to Step 30 | |
19 | Check the operation of the brake pressure differential switch per combination valve warning switch test. Refer to Hydraulic Brakes in Brakes. Does the brake pressure differential switch operate as designed? | -- | Go to Step 21 | Go to Step 22 |
20 | Repair the open in the BLK (150) wire between the brake pressure differential switch connector cavity B and ground G103. Does the brake indicator now operate as designed? | -- | -- | |
21 |
Is continuity present? | -- | Go to Step 22 | Go to Step 23 |
22 | Perform diagnostic testing of the electronic brake control module. Refer to Diagnostic System Check - ABS . Is the condition repaired? | -- | Go to Step 31 | |
23 | Repair the open in the PPL (680) wire between splice S156 and the electronic brake control module. Does the brake indicator now operate as designed? | -- | -- | |
24 |
Does the brake indicator now operate as designed? | -- | -- | |
25 | Replace the park brake warning switch. Does the brake indicator now operate as designed? | -- | -- | |
26 | Replace the ignition switch. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
27 | Repair the ignition switch ground connection from the ignition switch to G201. Is the ground connection repaired? | -- | -- | |
28 | Repair the open in the TAN/WHT (33) wire or in the BLK/YEL (1471) wire between the connector C217 terminal A and the P/B booster fluid flow and pressure alarm delay module. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
29 | Replace the in-line diode D202. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
30 | Verify diode D101 at the underhood fuse-relay center is also not open. Does the brake indicator now operate as designed? | -- | -- | |
31 | Replace the electronic brake control module. Refer to Electronic Brake Control Module Replacement . Does the brake indicator now operate as designed? | -- | -- |
Brake Warning Indicator Inoperative Alarm is Inoperative
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Brake Warning System Check performed? | -- | Go to Step 2 | |
2 |
Is the brake indicator illuminated? | -- | Go to Step 6 | Go to Step 3 |
3 |
Is the brake indicator illuminated? | -- | Go to Step 7 | Go to Step 4 |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 8 |
5 |
Is continuity present? | -- | Go to Step 6 | Go to Step 9 |
6 |
Is the brake indicator illuminated while the ignition switch is in START? | -- | Go to Step 10 | Go to Step 11 |
7 | Adjust the park brake warning switch. Is the brake indicator illuminated? | -- | Go to Step 25 | |
8 | Repair the open in the PNK (39) wire between the IP fuse block connector cavity J7 and the instrument cluster connector cavity B17. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
9 | Repair the open in the TAN/WHT (33) wire between the instrument cluster connector cavity A13 and the daytime running lamp control module connector cavity E. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
10 |
Is continuity present? | -- | Go to Step 12 | Go to Step 24 |
11 |
Does the brake indicator light? | -- | Go to Step 13 | Go to Step 14 |
12 |
Is continuity present in one direction only? | -- | Go to Step 15 | Go to Step 16 |
13 | Connect a J 39200 between connector C200 cavity B5 for the TAN/WHT (1134) wire and a known good ground. Test for continunity. Is continunity present? | -- | Go to Step 26 | Go to Step 27 |
14 | Repair the open in the LT BLU (1134) wire between the daytime running lamp control module connector cavity B and the ignition switch. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
15 |
Is continuity present in one direction only? | -- | Go to Step 17 | Go to Step 18 |
16 | Is there an open in the TAN/WHT (33) wire or in the BLK/YEL (1471) wire between connector C217 terminal A and the P/B booster fluid flow pressure alarm delay module? | -- | Go to Step 28 | Go to Step 29 |
17 |
Is continuity present? | -- | Go to Step 19 | Go to Step 20 |
18 | Repair the open in the TAN/WHT (33) wire or the PPL (680) wire between daytime running lamp control module connector cavity F and the brake pressure differential switch connector cavity A. Does the brake indicator now operate as designed? | -- | Go to Step 30 | |
19 | Check the operation of the brake pressure differential switch per combination valve warning switch test. Refer to Combination Valve Circuit . Does the brake pressure differential switch operate as designed? | -- | Go to Step 21 | Go to Step 22 |
20 | Repair the open in the BLK (150) wire between the brake pressure differential switch connector cavity B and ground G103. Does the brake indicator now operate as designed? | -- | -- | |
21 |
Is continuity present in one direction only? | -- | Go to Step 22 | Go to Step 23 |
22 | Perform diagnostic testing of the electronic brake control module. Refer to Diagnostic System Check - ABS Is the condition repaired? | -- | Go to Step 31 | |
23 | Repair the open in the PPL (680) wire between splice S156 and the electronic brake control module. Does the brake indicator now operate as designed? | -- | -- | |
24 |
Does the brake indicator now operate as designed? | -- | -- | |
25 | Replace the park brake warning switch. Does the brake indicator now operate as designed? | -- | -- | |
26 | Replace the ignition switch. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
27 | Repair the ignition switch ground connection from the ignition switch to G201. Is the ground connection repaired? | -- | -- | |
28 | Repair the open in the TAN/WHT (33) wire or in the BLK/YEL (1471) wire between the connector C217 terminal A and the P/B booster fluid flow and pressure alarm delay module. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
29 | Replace the in-line diode D202. Does the brake indicator now operate as designed? | -- | Go to Step 2 | |
30 | Verify diode D101 at the underhood fuse-relay center is not also open. Does the brake indicator now operate as designed? | -- | -- | |
31 | Replace the electronic brake control module. Refer to Electronic Brake Control Module Replacement . Does the brake indicator now operate as designed? | -- | -- |
