Workshop Manuals Factory service & repair Vauxhall
Vauxhall Astra J14 · Roof
14 · General

DTC B3664

Make
Vauxhall
Model
Astra J
Section
Diagnostic Information and Procedures › Miscellaneous › DTC B3664
RoofDTC B3664

DTC B3664

Diagnostic Instructions

•  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
•  Review Strategy Based Diagnosis for an overview of the diagnostic approach.
•  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B3664 02: Sunroof Position Select Switch High Signal Circuit Short to Ground
DTC B3664 05: Sunroof Position Select Switch High Signal Circuit High Voltage/Open
DTC B3664 59: Sunroof Position Select Switch High Signal Circuit Protection Time-Out

Diagnostic Fault Information



Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance

Sunroof Position Select Switch Control
B3664 02
B3664 05
B3664 05
-

Sunroof Position Select Switch Low Reference
-
1
1
-

1. Power Sunroof/Sunshade Malfunction
 

Circuit/System Description

The sunroof position select switch is connected directly to the controller. The sliding glass switch provide detent positions for open, express open, off, close, and express close. The sunroof position select switch completes the circuit between two signals provided by the control module, a reference ground input and a pull-up voltage provided by an analog to digital switch input. The control switch places a different resistor ladder network in the circuit depending on the function selected.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

B3664 02

The sunroof module has detected and reported via the LIN-Bus that the sunroof position select switch high signal circuit is shorted to ground.

B3664 05

The sunroof module has detected and reported via the LIN-Bus that the sunroof position select switch high signal circuit is open or shorted to voltage.

B3664 59

The sunroof module has detected and reported via the LIN-Bus that the sunroof position select switch high signal 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 B3664 is stored in the body control module (BCM) memory.

Conditions for Clearing the DTC

The BCM no longer detects a malfunction in the sunroof position select switch high signal circuit.

Reference Information


Schematic Reference

Sunroof Schematics


Connector End View Reference

Component Connector End Views


Description and Operation

Sunroof Description and Operation


Electrical Information Reference


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing


Note:  Because of the accessibility of the sunroof switch, perform the component testing before beginning the Circuit/System Testing.

1. Ignition OFF, disconnect the harness connector at the S72 Sunroof Switch.
2. Test for less than 5 Ω 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 slide 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 slide 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 S72 Sunroof Switch.

Component Testing

Static Test

1. Ignition OFF, disconnect the harness connector at the S72 Sunroof Switch.
2. Test for 3.6-3.7 kΩ between the switch terminals 1 and 4.
⇒ If not within the specified range, replace the S72 Sunroof Switch.
3. Test for 430-440 Ω 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 S72 Sunroof Switch.
4. Test for 96-100 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the express open switch.
⇒ If not within the specified range, replace the S72 Sunroof Switch.
5. Test for 1.7-1.8 kΩ 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 S72 Sunroof Switch.
6. Test for 930-940 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the express close switch.
⇒ If not within the specified range, replace the S72 Sunroof Switch.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•  Control Module References for sunroof motor/actuator replacement, setup and programming

Parts & tools for this job For Vauxhall Astra

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