Test Description
The number below refers to the step number on the diagnostic table.
- 7: If the fuse in the jumper opens when you perform this test, the signal circuit of the brake fluid level switch is shorted to voltage.
Brake Warning Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: CELL LINK Connector End Views Reference: Hydraulic Brake Connector End Views or CELL LINK or CELL LINK |
|||
| 1 | Did you review the hydraulic brakes operation and perform the necessary inspection? | Go to Step 2 | Go to Symptoms - Hydraulic Brakes |
| 2 | Inspect the brake fluid level. Is the brake fluid level OK? |
Go to Step 3 | Go to Brake Fluid Loss |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 | With a scan tool, observe the Brake Warning Lamp parameter in the IPC Inputs data list. Does the scan tool indicate that the Brake Warning Lamp parameter is ON? |
Go to Step 12 | Go to Step 6 |
| 5 |
|
Go to Step 9 | Go to Step 7 |
| 6 |
|
Go to Step 10 | Go to Step 8 |
| 7 |
|
Go to Step 17 | Go to Step 11 |
| 8 |
|
Go to Step 17 | Go to Step 11 |
| 9 | Inspect for poor connections at the harness connector of the park brake warning lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 17 | Go to Step 13 |
| 10 | Inspect for poor connections at the harness connector of the brake fluid level switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 17 | Go to Step 14 |
| 11 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 17 | Go to Step 15 |
| 12 | Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 17 | Go to Step 16 |
| 13 | Replace the park brake warning lamp switch. Refer to Park Brake Warning Lamp Switch Replacement
. Did you complete the repair? |
Go to Step 17 | - |
| 14 | Replace the brake fluid level switch. Refer to Master Cylinder Fluid Level Sensor Replacement . Did you complete the repair? |
Go to Step 17 | - |
| 15 | Replace the BCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the repair? |
Go to Step 17 | - |
| 16 | Replace the IPC. Refer to Control Module References
for replacement, setup, and programming. Did you complete the repair? |
Go to Step 17 | - |
| 17 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |