GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This table is based on the Stepper Motor Driver IC being inoperative causing the speedometer, the tachometer, the temperature gauge, and the fuel gauge to be inoperative. The Stepper Motor is a subsystem of the IPC.

1

Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Verify that the IPC functions operate properly except for the speedometer, tachometer, temperature, and fuel gauge.

Does the IPC function as described above?

--

Go to Step 3

Go to Diagnostic System Check - Instrument Cluster

3

Replace the instrument cluster (IPC). Refer to Instrument Cluster Replacement .

Did you complete the repair?

--

System OK

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