Instrument Panel Cluster (IPC) Gauges Inoperative - Speedometer Offset from Zero, Erratic Tachometer, Fuel Gauge Erratic (Reprogram IPC)
| Subject: | Instrument Panel Cluster (IPC) Gauges Inoperative -- Speedometer Offset From Zero, Erratic Tachometer, Fuel Gauge Erratic (Reprogram IPC) |
| Models: | 2005 Chevrolet Cobalt |
| 2005 Pontiac Pursuit (Canada Only) |
Condition
Some customers may comment that the instrument panel gauges appear to lose their position or are inoperative.
Cause
A software anomaly within the IPC has been found. If battery voltage drops as a result of a slow drain, the IPC will reset. Upon exiting reset, the IPC will move the speedometer pointer by 10 degrees. Each time the IPC resets, the speedometer pointer will move an additional 10 degrees. The speedometer will offset between 10 to 340 degrees total. Once the battery voltage begins to rise, the fuel and tachometer pointers will move up by 10 degrees.
Correction
Important: Programming the IPC must be done PASS-THRU ONLY.
Technicians are to reprogram the IPC with an updated software calibration. This new service calibration was released with TIS satellite data update version 6.5 available June 13, 2005. As always, make sure your Tech 2® is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
N9522* | Instrument Panel Cluster (IPC) -- Reprogram | 0.4 hr |
Add: | Diagnosis Time | 0.0-0.3 hr |
*This is a unique labor operation number for bulletin use only. This number will not be published in the Labor Time Guide. | ||
