For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Connect the scan tool.
2. Turn the ignition switch to RUN.
3. Go into SDL monitor mode and monitor the communication between the ABS and the instrument cluster.

Is the brake signal active?

--

Go to Diagnostic System Check in Anti-lock Brake Systems

Go to Step 2

2 |

1. Turn the ignition switch to RUN.
2. Disconnect the park brake switch.

Did the brake indicator turn off when you disconnected the switch?

--

Go to Step 4

Go to Step 3

3 | Inspect CKT 1134 for a short. Did you find and repair a condition? | -- | System OK | Go to Step 5
4 | Replace the park brake switch. Refer to Park Brake Switch Replacement. Did you complete the repair? | -- | System OK | --
5 | Replace the instrument cluster. Refer to IP Cluster Replacement. Did you complete the repair? | -- | System OK | --