For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Were you sent here from the Hydraulic Brake Diagnostic System Check? | -- | Go to Step 2 | Go to Hydraulic Brake Diagnostic System Check
2 | Check the BRAKE warning indicator for operation during the following conditions:

• | Bulb check

• | Parking brake engaged

• | Brake fluid level is low

Will the indicator illuminate, during any 1 or more of the above conditions?

--

Go to Step 3

Go to Step 4

3 | Is the BRAKE indicator inoperative during bulb check? | -- | Go to Step 4 | Go to Step 5
4 | Replace the instrument cluster assembly printed circuit. Refer to Printed Instrument Cluster Circuit Replacement . Is the replacement complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
5 | Is the BRAKE indicator inoperative with the parking brake engaged? | -- | Go to Step 6 | Go to Step 15
6 | With the ignition switch in the ON position: Backprobe cavity 16 of connector C1 of junction block 3 with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 8 | Go to Step 7
7 | Repair or replace junction block 3. Is the repair/replacement complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
8 | Backprobe cavity 4 of the daytime running lamps (DRL) control module with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 10 | Go to Step 9
9 | Repair the RED/YEL wire between cavity 16 of connector C1 of junction block 3 and cavity 4 of the DRL control module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
10 | Backprobe cavity 14 of the DRL control module with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 12 | Go to Step 11
11 | Replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement in Lighting Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
12 | Backprobe the parking brake switch with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 14 | Go to Step 13
13 | Repair the RED/BLK wire between the parking brake switch and the daytime running lamp (DRL) control module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
14 | Replace the parking brake switch. Refer to Parking Brake Indicator Switch Replacement . Is the replacement complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
15 | With the ignition switch in the ON position: Backprobe cavity 16 of connector C3 of junction block 3 with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 16 | Go to Step 7
16 | Backprobe cavity 3 of connector C3 of junction block 1 with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 18 | Go to Step 17
17 | Repair the RED/YEL wire between cavity 16 of connector C3 of junction block 3 and cavity 3 of connector C3 of junction block 1. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
18 | Backprobe cavity 5 of connector C2 of junction block 1 with a J 36169-A Fused Jumper Wire. Does the BRAKE indicator illuminate? | -- | Go to Step 20 | Go to Step 19
19 | Repair/replace junction block 1. Is the repair/replacement complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
20 | Backprobe cavity 1 of the brake fluid level switch with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 22 | Go to Step 21
21 | Repair the RED/YEL wire between cavity 5 of connector C2 of junction block 1 and cavity 1 of the brake fluid level switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
22 | With a low brake fluid condition, backprobe cavity 2 of the brake fluid level switch with a J 36169-A . Does the BRAKE indicator illuminate? | -- | Go to Step 24 | Go to Step 23
23 | Replace the brake fluid level switch. Refer to Master Cylinder Reservoir Replacement . Is the replacement complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --
24 | Repair the WHT/BLK wire between the brake fluid level switch and G103. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Hydraulic Brake Diagnostic System Check | --