DTC B2823 or B3574. Buick Rendezvous

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2007 🢒 Rendezvous - FWD 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 DTC B2823 or B3574

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B2823: Trip Odometer Reset Switch Circuit Low

DTC B3574: Trip Odometer A or B (trip odometer 1 or 2) Select Switch Circuit Low

The instrument panel cluster (IPC) monitors the signal circuit of the internal trip odometer reset switch in order to change odometer displays and to reset the odometer value. The IPC detects a switch activation when the signal circuit is low.

Conditions for Running the DTC

The IPC must have normal operating battery voltage.

Conditions for Setting the DTC

The IPC detects that the trip odometer reset switch signal circuit is low for greater than 60 seconds.

Action Taken When the DTC Sets

The IPC ignores the trip odometer reset switch signal circuit. The IPC sets DTC B2823.

Conditions for Clearing the DTC

•	A history DTC B2823 will clear after a complete ignition cycle.

•	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.

Reference Information

Schematic Reference

Instrument Cluster Schematics

Connector End View Reference

Displays and Gages Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Scan Tool Data List

Circuit/System Testing

Ignition ON, engine OFF, press the trip reset button a few times to verify the odometer and trip odometer.

⇒	If the odometer display does not switch between trip and odometer, replace the instrument panel cluster (IPC).

Press the trip reset button a few times and verify the scan tool Trip Odometer Reset parameter toggles between Pressed and Released.

⇒	If the parameter doesn't toggle between the two values, replace the IPC.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for IPC replacement, setup, and programming