2010 Cadillac Truck SRX FWD V6-3.0L Page 221

2010 Cadillac Truck SRX FWD V6-3.0L Page 221

A short to voltage on the run/crank relay coil control will cause the engine to remain running after the ignition mode is changed to OFF.

Reference Information

Schematic Reference

* Power Moding Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System

Diagram/Power Moding Schematics)Body Control System Schematics

* Power Distribution Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System

Diagram/Power Distribution Schematics)Power Distribution Schematics

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)Component Connector End Views

Description and Operation

Power Mode Description and Operation (See: Power and Ground Distribution/Description and Operation/Power Mode)Power Mode Description

and Operation

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)Circuit Testing

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)Connector Repairs

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)Testing for Intermittent

Conditions and Poor Connections

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)Wiring Repairs

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning)Control Module References for scan tool information

Circuit/System Verification

Ignition ON, verify DTC B1330 is not set.

If the DTC is set, refer to DTC B1330 (See: B Code Charts/B1330).

Circuit/System Testing

1. Ignition OFF, disconnect the X2 harness connector at the K84 keyless entry control module.

2. Verify that a test lamp illuminates between the B+ circuit terminal 5 and ground.

瀚慖f the test lamp does not illuminate, test the B+ circuit for an open/high resistance. If the B+ circuit fuse is open, test the B+ circuit for a

short to ground.

3. Connect the X2 harness connector at the K84 keyless entry control module. Disconnect the X3 harness connector at the K9 BCM.

4. Ignition OFF, test for less than 1 V between the ignition circuit terminal 6 and ground.

瀚慖f greater than the specified range, test the ignition circuit for a short to voltage. If the circuit tests normal, replace the K84 keyless entry

control module.

5. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 6 and ground.

瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal,

replace the K84 keyless entry control module.

6. Ignition OFF, Connect the X3 harness connector at the K9 BCM. Disconnect the KR74 ignition run relay.

7. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohm

between the ground circuit terminal 86 and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

8. Connect a test lamp between the control circuit terminal 85 and ground.

9. Cycle the ignition ON and OFF. The test lamp should turn ON and OFF when changing ignition modes.

瀚慖f the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.

瀚慖f the test lamp is always OFF, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the