IP not functioning

chip59 · January 7, 2006

I have an '03 Silverado LS, 52,000 miles and all of the gauges have ceased to function. Lights and odo/trip still work. It's my understanding that it's usually just the speedo that quits when the IP croaks. Any suggestions?

GM-Tech · January 7, 2006

I've seen this though I'm not sure this TSB is what's going on with yours. This is a logic lockup in the module (cluster) and if this is what's wrong, powering down the module will fix it, temporarily at least.

Look in your underhood fusebox for one of two fuses... IPC/DIC or SEO B1. Which one supplies constant power to your cluster depends on the options you have on your truck. You'll have one of these fuses. Pull it for 30 seconds with the key off. Put it back and see if everything comes to life. If so, you need the IPC programming updated, or you can just hope it doesn't happen too often and pull the fuse when it does.

Instrument Panel Cluster (IPC) Gauges Inoperative (Reprogram IPC) #03-08-49-020 - (Nov 19, 2003)

2003 Cadillac Escalade, Escalade ESV, Escalade EXT

2003 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2003 GMC Sierra, Yukon, Yukon XL

Condition

Some customers may comment that upon vehicle start-up, all instrument panel cluster gauges are inoperative.

Cause

During a cold start or low battery condition, a low voltage condition may cause gauges to freeze during crank cycle.

Correction

Important

DO NOT REPLACE the following clusters unless a reprogram does not correct this condition.

15182138

15182139

15182140

15182141

15182142

15182143

15182144

15182145

15182146

15182147

15182148

15182149

15182150

15182151

15182152

15182153

15182154

15182155

15182156

15182157

15177467

15177468

A new service calibration has been released to correct this condition. Reprogram the IPC using the new service calibration, which was available from Techline starting November 3, 2003 on the TIS2000 version 11.5 or later. This calibration is an electronic calibration and is not available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

N4199

Instrument Panel Cluster (IPC) Module - Reprogram

0.4 hr

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

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