GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Catera 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 DTC 051 or 052

Circuit Description

The calibrations for the instrument panel cluster (IPC) are stored in EEPROM. When the ignition is first turned ON, the IPC performs internal tests on the EEPROM and can determine the integrity of the EEPROM's non-volitale memory. A DTC 051 indicates that the EEPROM is either not programmed or an internal malfunction exists. A DTC 052 indicates that the EEPROM is partially programmed.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. This step reprograms the instrument cluster using the scan tool.

    2.

  2. Clear all DTCs within the IPC after performing this diagnostic table.

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

Did you perform the IPC Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2
  1. Install the scan tool.
  2. Reprogram the IPC. Refer to Instrument Cluster Programming/Synchronization .

Was the programming successful?

Go to Step 4

Go to Step 3

3

Important: Program the replacement IPC.

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 4

--

4
  1. Use the scan tool in order to clear the IPC DTCs.
  2. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2