GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect for a short to B+ on CKT 33.

Does a short to B+ on CKT 33 exist?

--

Go to Step 2

Go to Step 3

2

Repair the short to B+ in CKT 33.

Is the repair complete?

--

System OK

--

3

Inspect for a poor connection or an open in CKT 33 between S207 and the instrument cluster harness connector terminal C7.

Does a poor connection or an open between S207 and the instrument cluster harness connector terminal C7 exist in circuit 33?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or the open in CKT 33 between S207 and the instrument cluster harness connector terminal C7.

Is the repair complete?

--

System OK

--

5

  1. Inspect the warning indicator bulb and the bulb connection.
  2. If OK, replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

--