2010 Cadillac Truck SRX AWD V6-3.0L Page 665
B3567
DTC B3567
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B3567 01
- Info Display Select Switch Circuit Short to Battery
DTC B3567 02
- Info Display Select Switch Circuit Short to Ground
DTC B3567 04
- Info Display Select Switch Circuit Open
DTC B3567 59
- Info Display Select Switch Circuit Protection Time-Out
Circuit/System Description
The driver information center switch is a multiplexed switch. Battery power is provided to the driver information center switch via the instrument
cluster. The driver information center switch signal circuit is pulled up to battery voltage in the instrument cluster. The instrument cluster also
provides the driver information center switch with a low reference. The switch input to the instrument cluster is pulled low when a switch is
activated. The driver information center switch is a momentary contact switch that connects a series of resistors in a resistor ladder format. The
instrument cluster monitors the driver information center switch signal circuit to determine the driver information center switch inputs. Each switch
state Menu, Up, Down, Clear corresponds to a certain resistance value. The instrument cluster determines the switch pressed by the voltage drop
across the resistors.
Conditions for Running the DTC
* The ignition is in OFF, ACCESSORY or RUN position.
* The system voltage is between 9-16 V.
Conditions for Setting the DTC
B3567 01
The instrument cluster detects that the driver information center switch signal circuit is shorted to battery.
B3567 02
The instrument cluster detects that the driver information center switch signal circuit is shorted to ground.
B3567 04
The instrument cluster detects that the driver information center switch signal circuit is open.
B3567 59
The instrument cluster detects that the driver information center switch is stuck.
Action Taken When the DTC Sets
The instrument cluster ignores the driver information center switch inputs.
Conditions for Clearing the DTC
The DTC will become history if the instrument cluster no longer detects a malfunction.
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