Diagnostic Aids

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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 B3564 or B2838.
If DTC B3564 or B2838 is set only in history, press and release the DIC mode (B3564) or reset (B2838) switch several times in order to verify the customer concern.

DTC B2838, B3564, B3569, or B3752

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	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the DIC Mode button or the DIC Reset button parameter in the Instrument Panel Cluster Inputs data list. Does the scan tool display Inactive?	Go to Diagnostic Aids	Go to Step 3
3	Disconnect the DIC switch. Does the suspected DIC switch parameter display Inactive?	Go to Step 6	Go to Step 4
4	Test the signal circuit of the suspected DIC switch for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 5
5	IMPORTANT: Perform the compass calibration and variance procedure on the replacement IPC. Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .Did you complete the replacement?	Go to Step 7	-
6	Replace the DIC Switch. Refer to Driver Information Center Switch Replacement (Rendezvous) or Driver Information Center Switch Replacement (Aztek) . Did you complete the replacement?	Go to Step 7	-
7	Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC. Does the DTC reset?	Go to Step 2	System OK