GM Service Manual Online
For 1990-2009 cars only

Circuit Description

The instrument panel cluster (IPC) contains a momentary switch that controls the trip odometer reset and trip season display options. The IPC monitors the circuit voltage levels and detects when the trip odometer reset switch has been depressed.

Conditions for Running the DTC

The IPC must have normal operating battery voltage.

Conditions for Setting the DTC

The IPC detects that the trip reset switch input is low (grounded) for greater than 60 seconds.

Action Taken When the DTC Sets

The IPC will disable (ignore) the trip reset switch.

Conditions for Clearing the DTC

    • The DTC becomes history when the IPC no longer detects a failure.
    • The history DTC clears after 100 fault free ignition cycles.
    • The IPC receives the clear code command from the scan tool.

Diagnostic Aids

    • The IPC will store the code as current only as long as the failure exists. An intermittent failure will be stored as a history DTC B2823.
    • If DTC B2823 is set only in history, press and release the trip reset switch several times in order to verify the customer concern.

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

Did you perform the Instrument Cluster Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Trip Reset Switch parameter in the Instrument Panel Cluster data list.

Does the scan tool display OFF?

Go to Step 3

Go to Step 4

3

  1. Press and release the trip reset switch.
  2. With a scan tool, observe the Trip Reset Switch parameter.

Does the Trip Reset Switch parameter change state and does the odometer change from season to trip?

Go to Diagnostic Aids

Go to Step 4

4

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

System OK

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