Brake Warning Indicator Always On; Brake Warning Indicator Inoperative - GMC chervolet camaro 1999 Service Manual

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Brakes
Hydraulic Brakes 5-19
Brake Warning Indicator Always On
Step Action Value(s) Yes
I
No
Important:
• Check for ABS diagnostic trouble codes prior to performing this diagnosis. Refer to Displaying DTCs (Displaying DTCs).
• Check the brake fluid level prior to performing this diagnosis. Refer to Master Cylinder Reservoir Filling.
1. Disconnect the brake fluid level indicator sensor.
1
2. Tum the ignition switch to the run position.
-
Is the brake warning indicator on? Go to Step2
Go to Step 6
1. Disconnect the park brake switch.
2
2. Tum the ignition switch to the run position.
-
Is the brake warning indicator on? Go to Step 3 Go to Step 7
Determine if this vehicle either of the following types:
3
• Domestic
-
• Gulf States
Is the vehicle one of the above types?
Go to Step 4
Go to Step 5
1. Disconnect the daytime running lights (DAL) module.
4
2. Tum the ignition switch to the run position.
-
Is the brake warning indicator on? Go to Step 5 Go to Step B
1. Test circuit 33 for a short to ground.
5
2. If circuit 33 is OK, Replace the instrument cluster.
- -
Refer to IP Cluster Replacement.
Is the repair complete? System OK
6
Replace the brake fluid level indicator sensor.
-
-
Is the repair complete?
System OK
7
Replace the park brake switch.
- -
Is the repair complete?
System OK
1. Test circuit 1134 for a short to ground.
8
2. If circuit 1134 is OK, Replace the DAL module. Refer
-
-
to DRL Control Module Replacement.
Is the repair complete?
System OK
Brake Warning Indicator Inoperative
Step Action
Value(s) Yes
No
1. Tum the ignition switch to the run position.
1
2. Does the brake warning indicator illuminate for bulb
-
test and then tum off?
Go to Step 2
Go to Step B
1. Set the park brake.
2
2. Tum the ignition switch to the run position.
-
Is the brake warning indicator on?
Go to Step 3
Go to Step 9
1. Disconnect the brake fluid level indicator sensor.
2. Connect a fused jumper from the brake fluid level
3
indicator sensor connector terminal A to terminal B.
-
3. Tum the ignition switch to the run position.
Is the brake warning indicator on? Go to Step 4 Go to Step 5
1. Test for a poor connection at the brake fluid level
4
indicator sensor.
-
-
2. If the connections are OK, replace the sensor.
Is the repair complete?
System OK
1. Connect a fused jumper from the brake fluid level
5
indicator sensor terminal A to ground.
-
2. Turn the ignition switch to the run position.
Is the brake warning indicator on? Go to Step 6
Go to Step 7