2010 Cadillac Truck SRX FWD V6-3.0L Page 204
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information
Circuit/System Verification
1. verify DTC B097B 08 or B097B 61 is not set.
瀚慖f any of the DTCs are set, test or replace the S38 ignition mode switch.
2. With the brake pedal released, press the ignition mode switch once. The amber LED should illuminate and the vehicle should be in the
accessory power mode.
3. With the brake pedal released, press the ignition mode switch a second time or press and hold the ignition mode switch for 5 seconds. The
green LED should illuminate and the vehicle should be in the run power mode.
4. With the brake pedal pressed, press the ignition mode switch once. The green LED should illuminate and the vehicle should start.
Circuit/System Testing
1. Ignition OFF, disconnect the X1 harness connector at the K84 keyless entry control module.
2. Ignition ON, test for less than 1 V between the signal circuit terminal 11 and ground.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage.
3. Ignition OFF, connect the X1 harness connector at the K84 keyless entry control module. Disconnect the harness connector at the S38
ignition mode switch.
4. Wait 2 minutes, test for less than 15 ohm between the low reference circuit terminal 7 and ground.
瀚慖f greater than specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K84
keyless entry control module.
5. Verify that a test lamp illuminates between signal circuit terminal 3 and ground.
瀚慖f the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the K84 keyless entry control module.
6. If all circuits test normal, test or replace the S38 ignition mode switch.
Component Testing
1. Ignition OFF, disconnect the harness at the S38 ignition mode switch.
2. With the button released, test for 4.5-5.5 Kohm between the signal terminal 3 and the low reference terminal 7.
瀚慖f not within the specified range, replace the S38 ignition mode switch.
3. With the button pressed, test for 1-1.5 Kohm between the signal terminal 3 and the low reference terminal 7.
瀚慖f not within the specified range, replace the S38 ignition mode switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Ignition and Start Switch Replacement (See: Powertrain Management/Ignition System/Sensors and Switches - Ignition System/Ignition
Switch/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning)for keyless entry control module replacement, setup,
and programming
B097C
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.
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