2010 Cadillac CTS Sedan AWD V6-3.6L Page 369
3. Ignition ON, test for B+ between the voltage reference circuit terminal 5 and ground.
瀚慖f less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests
normal, replace the BCM.
4. Install a 3 A fused jumper wire between the signal circuit terminal 9 and the voltage reference circuit terminal 5. Verify the scan tool
Dimming Control Signal parameter is greater than 2.5 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the BCM.
5. If all circuits test normal, replace the I/P dimmer switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Instrument Panel Lamp Dimmer Switch Replacement (See: Instrument Panel, Gauges and Warning Indicators/Dimmer Switch/Service and
Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
Power Seats
DTC B1395
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 B1395 02
- Device Voltage Reference Output Circuit Short to Ground
DTC B1395 05
- Device Voltage Reference Output Circuit Short to Battery or Open
Diagnostic Fault Information
