2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 452
Conditions for Clearing the DTC
The DTC passes when the malfunction is no longer present.
Diagnostic Aids
A high or low voltage value in multiple modules indicates a concern in the charging system.
Reference Information
Schematic Reference
Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry
Transmitter/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Charging System Description and Operation (See: Starting and Charging/Charging System/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)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/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)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Engine running, accessories OFF, measure and record the battery voltage at the C1 battery terminals. The voltage should be between 12.6 and
15.0 V.
瀚慖f the battery voltage is not within the specified range, refer to Charging System Test (See: Starting and Charging/Testing and
Inspection/Component Tests and General Diagnostics/Charging System Test).
2. Engine running, observe the keyless entry control module scan tool Battery Voltage parameters. Verify that the scan tool displays a value that
is within 2 V of the battery terminal voltage.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connectors of the K84 keyless entry control module.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 10 Ohms between the ground
circuit terminals listed below and ground:
* Terminal 2 X2
* Terminal 6 X2
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Test for greater than 9 V between the B+ circuit terminals listed below and ground:
* Terminal 1 X2
* Terminal 5 X2
瀚慖f less than the specified range, test the B+ circuit for a short to ground or an open/high resistance.
4. If the circuits test normal, replace the K84 keyless entry control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
