GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Using a test light, backprobe between C201 terminal E12 and ground.
  2. Depress and hold the brake pedal.

Does the test light illuminate?

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Go to Step 3

Go to Step 2

2

Repair a poor connection or and open in circuit 17 between S205 and C201 terminal E12.

Has the repair been made?

--

Go to Exterior Lights System Check

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3

Replace the turn signal switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle .

Has the repair been made?

--

Go to Exterior Lights System Check

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