DTC B3542. Cadillac XLR 2004

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2004 🢒 XLR 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 DTC B3542

Circuit Description

The driver door module (DDM) and passenger door module (PDM) check for hall sensor pulses of their respective window motors at least once every 50 milliseconds. When the DDM or PDM detects no hall sensor pulses in the window motor, a DTC is set.

DTC B3542 Left Front/Driver Window Obstruction Sensor Control Circuit

Conditions for Setting the DTC

•	The DDM or PDM detects no hall sensor pulses in the power window motor.

•	Battery voltage must be 9.0-16.0 volts.

Action Taken When the DTC Sets

•	Stores DTC B3542 in DDM or PDM memory.

•	No express possible.

Conditions for Clearing the DTC

•	The DDM or PDM no longer detects a current DTC B3542 in DDM or PDM memory, and:

•	The DTC is cleared using a scan tool.

Diagnostic Aids

•	The following conditions may cause an intermittent malfunction:

-	There is an intermittent sticking or binding condition on a window causing the window to be unable to move.

-	A window motor is shorted internally.

•	If the DTC does not reset after the code is cleared, then the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Test Description

The number below refers to the step number on the diagnostic table.

Tests the window for a sticking or binding condition.

Step	Action	Yes	No
Schematic Reference: Power Window Schematics and Door Control Module Schematics Connector End View Reference: Power Door Systems Connector End Views
1	Did you perform the Vehicle Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Inspect the appropriate window for a sticking or binding condition. Did you find and correct the condition?	Go to Step 5	Go to Step 3
3	Inspect for poor connections at the harness connector of the appropriate door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 5	Go to Step 4
4	Perform the power window reinitialization procedure. Refer to Power Window Reinitialization Replace the appropriate door module. Refer to Door Control Module Replacement . Did you complete the replacement?	Go to Step 5	--
5	Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK