GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 Sonoma Pickup - 4WD 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Volt Gage Inaccurate or Inoperative

Step

Action

Value(s)

Yes

No

1

Was the IPC Diagnostic System Check performed?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2
  1. Connect a DVOM between CKT 39 (PNK) IPC connector terminal A7 and ground.
  2. Turn the ignition switch to the ON position. Do not start the engine.
  3. Compare the DC voltage reading on the DVOM to the voltmeter display in the IPC.

Do the IPC and the DVOM display approximately the same values (within 2.5 volts)?

12-14 VDC

Go to Diagnostic System Check - Instrument Cluster

Go to Step 3

3

Replace the IPC. Refer to Instrument Cluster Replacement .

Is the repair complete?

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Go to Diagnostic System Check - Instrument Cluster

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