2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 419
瀚慖f greater than the specified value, test the signal circuit for a short to voltage.
6. Ignition ON, verify that a test lamp does not illuminate between the B+ circuit terminal 1 X1 and signal circuit terminal 8 X1.
瀚慖f the test lamp illuminates, test signal circuit for a short to ground. If the circuit tests normal, replace the S48E multi-function switch
module - center console.
7. Verify that the test lamp illuminates between the B+ circuit terminal 1 X1 and signal circuit terminal 8 X1 while pressing the parking assist
switch.
瀚慖f the test lamp does not illuminate, test the signal circuit for an open/high resistance. If all circuits test normal, replace the S48E
multi-function switch module - center console.
8. If all circuits test normal, replace the K41 parking assist control module.
Parking Assist Switch Indicator Circuit Malfunction
1. Ignition OFF, disconnect the harness connector at the S48E multi-function switch module - center console.
2. Ignition ON, test for B+ between the ignition circuit terminal 3 and ground.
瀚慖f less than the specified value, test the ignition circuit for a short to ground or an open/high resistance.
3. Command the Park Assist Switch LED output control ON with the scan tool. Test for B+ between the ignition circuit terminal 3 and the
signal circuit terminal 6.
瀚慖f less than the specified value, test the signal circuit for an open/high resistance. If all circuits test normal, replace the K41 parking assist
control module.
4. Command the Park Assist Switch LED output control OFF with the scan tool. Test for less than 0.3 V between the ignition circuit terminal 3
and the signal circuit terminal 6.
瀚慖f greater than the specified value, test the signal circuit for a short to ground. If all circuits test normal, replace the K41 parking assist
control module.
5. If all circuits test normal, replace the S48E multi-function switch module - center console.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Accessory Switch Replacement (See: Instrument Panel, Gauges and Warning Indicators/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for parking assist control module replacement,
programming and setup
B0978
DTC B0978, B097B, or B097C
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 B0978 01
- Power Mode Accessory Indicator Control Circuit Short to Battery
DTC B0978 02
- Power Mode Accessory Indicator Control Circuit Short to Ground
DTC B0978 04
- Power Mode Accessory Indicator Control Circuit Open
DTC B097B 00
- Power Mode Start Switch Circuit Malfunction
