XL-7 2WD V6-3.6L (2007)
Odometer: Testing and Inspection
Odometer Trip/Reset Switch Inoperative
Diagnostic Instructions
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Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle Diagnostic Information
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Review [Strategy Based Diagnosis] for an overview of the diagnostic approach. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Strategy Based Diagnosis
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[Diagnostic Procedure Instructions - Vehicle Diagnostic Information]. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostic Procedure Instructions - Vehicle Diagnostic Information
Circuit/System Description
The instrument panel cluster (IPC) calculates the mileage based on the vehicle speed signal circuit from the powertrain control module (PCM). The PCM
sends the vehicle speed information via high speed GMLAN serial data to the body control module (BCM). The BCM then sends the information via
low speed GMLAN to the IPC indicating the value of the odometer. The odometer will display 'error' if an internal memory failure is detected. The
odometer displays either miles or kilometers and the desired units can be accessed by pressing the trip/reset switch.
Circuit/System Testing
Ignition ON, press the trip reset button a few times to verify the odometer and trip odometer.
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If the odometer display does not switch between trip and odometer, replace the IPC.
Repair Instructions
Perform the [Diagnostic Repair Verification - Vehicle Diagnostic Information] after completing the diagnostic procedure. See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures
[Control Module References] for IPC replacement, setup, and programming See: Testing and Inspection/Programming and Relearning
