DTC B369C
DTC B369C |
Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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DTC Descriptor |
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 | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
Sunroof Ventilation Position Select Switch Control
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B369C 02
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B369C 05
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B369C 05
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Sunroof Ventilation Position Select Switch Low Reference
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-
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1
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1
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-
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1. Power Sunroof/Sunshade Malfunction
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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 seconds 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
Connector End View Reference
Component Connector End Views
Description and Operation
Sunroof Description and Operation (Spoiler System)
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References
Circuit/System Testing |
1. |
Ignition OFF, disconnect the harness connector at the S88 Sunroof Ventilation Switch.
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2. |
Test for less than 5 Ω between the ground circuit terminal 1 and ground.
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3. |
If greater than the specified range, test the ground circuit for an open/high resistance.
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4. |
Ignition ON, verify the scan tool sunroof tilt switch is short to battery.
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5. |
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.
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6. |
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.
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7. |
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.
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8. |
If all circuits test normal, test or replace the S88 Sunroof Ventilation Switch.
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Component Testing |
Static Test
1. |
Ignition OFF, disconnect the harness connector at the S88 Sunroof Ventilation Switch.
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2. |
Test for 930-940 kΩ between the switch terminals 1 and 4.
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3. |
If not within the specified range, replace the S88 Sunroof Ventilation Switch.
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4. |
Test for 96-100 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the open switch.
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5. |
If not within the specified range, replace the S88 Sunroof Ventilation Switch.
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6. |
Test for 430-440 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the close switch.
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7. |
If not within the specified range, replace the S88 Sunroof Ventilation Switch.
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Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Sunroof Switch Replacement
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Sunroof Module Assembly Replacement
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Control Module References
for sunroof motor/actuator replacement, setup and programming.
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