B369C
DTC B369C
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC B369C 02
-
Sunroof Tilt Position Select Switch Circuit Short to Ground
DTC B369C 05
-
Sunroof Tilt Position Select Switch Circuit High Voltage/Open
DTC B369C 59
-
Sunroof Tilt Position Select Switch Circuit Protection Time-Out
Diagnostic Fault Information
Circuit/System Description
The sunroof ventilation position select switch is connected directly to the controller and provide detent positions for open, off and close. The control switch completes the circuit between two signals provided by the control module, a reference ground Input and a pull-up voltage provided by the analog to digital switch input. The control switch places a different resistor ladder network in the circuit depending on the function selected. The controllers analog to digital switch input reads the resulting voltage range and determines the function.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
B369C 02
The sunroof module has detected and reported via the LIN-Bus that the sunroof ventilation position select switch circuit is shorted to ground.
B369C 05
The sunroof module has detected and reported via the LIN-Bus that the sunroof ventilation position select switch circuit is open or shorted to voltage.
B369C 59
The sunroof module has detected and reported via the LIN-Bus that the sunroof ventilation position select switch has been the same active position for 20 s after the glass has stopped moving in the requested direction due to reaching the end of the allowable motion.
Action Taken When the DTC Sets
DTC B369C is stored in the body control module (BCM) memory.
Conditions for Clearing the DTC
The BCM no longer detects a malfunction in the sunroof ventilation position select switch circuit.
Reference Information
Schematic Reference
Sunroof Schematics [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Sunshade - Left (DH6)
Description and Operation
Sunroof Description and Operation (Tilt and Slide System) Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the S88 Sunroof Tilt Switch.
2. Test for less than 5 ohms between the ground circuit terminal 1 and ground.
• If greater than the specified value, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool sunroof tilt switch is short to battery.
• If not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the K61 Sunroof Control Module.
4. Install a 5 A fused jumper wire between the signal circuit terminal 4 and the ground circuit terminal 1. Verify the scan tool sunroof tilt switch is short to ground.
• If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K61 Sunroof Control Module.
5. If all circuits test normal, test or replace the S88 Sunroof Tilt Switch.
Component Testing
Static Test
1. Ignition OFF, disconnect the harness connector at the S88 Sunroof Tilt Switch.
2. Test for 930-940 kohms between the switch terminals 1 and 4.
• If not within the specified range, replace the S88 Sunroof Tilt Switch.
3. Test for 96-100 ohms between the signal terminal 1 and the low reference circuit terminal 4 while pressing the open switch.
• If not within the specified range, replace the S88 Sunroof Tilt Switch.
4. Test for 430-440 ohms between the signal terminal 1 and the low reference circuit terminal 4 while pressing the close switch.
• If not within the specified range, replace the S88 Sunroof Tilt Switch.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Sunroof Switch Replacement Sunroof Switch Replacement
* Sunroof Module Assembly Replacement Service and Repair
* Control Module References Control Module References for sunroof motor/actuator replacement, setup, and programming