GM Service Manual Online
For 1990-2009 cars only

ind inop

Step

Action

Value(s)

Yes

No

1

Was the entire Brake Warning System Check performed?

--

Go to step 2

Go to Brake Warning System Check

2

Did the PARK indicator illuminate briefly during the bulb check (when the ignition switch transitions from RUN to START)?

--

Go to step 3

Go to step 8

3

Did the PARK indicator illuminate when the park brake was applied?

--

Go to step 6

Go to step 4

4

  1. Disconnect the park brake switch connector.
  2. Connect a test lamp between the park brake switch harness connector terminal A and ground.
  3. Ignition switch in RUN.

Is the test lamp lit?

--

Go to step 7

Go to step 5

5

Repair open in circuit 1134 (LT BLU). If open, check for a short to positive voltage.

Is the repair complete?

--

Go to Brake Warning System Check

--

6

  1. Connect a scan tool.
  2. Select IPC.
  3. Check for DTC C1210.

Is DTC C1210 set current?

--

Go to Brake Warning Indicator, Message, and Chime Inoperative

Go to step 9

7

Replace park brake switch.

Is repair complete?

--

Go to Brake Warning System Check

--

8

Check instrument cluster PARK indicator and circuit for an open.

Is repair complete?

--

Go to Brake Warning System Check

--

9

Check instrument cluster BRAKE FLUID indicator and circuit for an open.

Is repair complete?

--

Go to Brake Warning System Check

--