2010 Cadillac Truck SRX AWD V6-3.0L Page 368
2. Test for infinite resistance between the signal terminal 3 and the low reference terminal 4 with the switch in the inactive position.
瀚慖f not the specified value, replace the B70 liftgate close switch.
3. Test for less than 3 ohm between the signal terminal 3 and the low reference terminal 4 with the switch in the active position.
瀚慖f greater than the specified range, replace the B70 liftgate close switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Liftgate Close Switch Replacement (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate Switch/Service and
Repair/Liftgate Close Switch Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the liftgate control module replacement, setup
and programming
B369B
DTC B369B
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 B369B 02
- Sunroof Sunshade Position Select Switch Circuit Short to Ground
DTC B369B 05
- Sunroof Sunshade Position Select Switch Circuit High Voltage/Open
DTC B369B 59
- Sunroof Sunshade Position Select Switch Circuit Protection Time-Out
Diagnostic Fault Information
Circuit/System Description
The sunshade control switch is connected directly to the controller and provide detent positions for open, express open, off, close, and express
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
B369B 02
The sunshade module has detected and reported via the LIN-Bus that the sunroof sunshade position select switch circuit is shorted to ground.
