GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Brake Warning System Check?

--

Go to Step 2

Go to Brake Warning System Check

2

Turn the ignition switch from the RUN position to the START position.

Did the PARK indicator illuminate briefly?

--

Go to Step 3

Go to Step 8

3

Engage the parking brake.

Did the PARK indicator illuminate?

--

Go to Step 6

Go to Step 4

4

  1. Disconnect the parking brake switch connector.
  2. Connect a DMM between the parking brake switch harness connector terminal A and ground.
  3. Turn the ignition switch to the RUN position.

Is the voltage within the specified range?

10-15 V

Go to Step 7

Go to Step 5

5

Repair an open in CKT 1134 (LT BLU) and test for a short to B+. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Brake Warning System Check

--

6

  1. Connect a scan tool.
  2. Select IPC.

Is DTC C1210 set current?

--

Go to Brake Warning Indicator, Message, and Chime Inoperative

Go to Step 9

7

Replace the parking brake switch.

Did you complete the repair?

--

Go to Brake Warning System Check

--

8

Test the instrument panel cluster PARK indicator and the circuit for an open.

Did you complete the repair.

--

Go to Brake Warning System Check

--

9

Test the instrument panel cluster BRAKE FLUID indicator and the circuit for an open.

Did you complete the repair?

--

Go to Brake Warning System Check

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