2010 Cadillac CTS Sedan AWD V6-3.6L Page 628
Conditions for Running the DTC
Battery voltage is between 9-16 V.
Conditions for Setting the DTC
The driver door lock/window switch detects the driver exterior door handle switch signal circuit is shorted to ground for greater than 180 seconds.
The passenger door lock/window switch detects the passenger exterior door handle switch signal circuit is shorted to ground for greater than 180
seconds.
Action Taken When the DTC Sets
The exterior door handle switch signal ignores inputs from the exterior door handle switch.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
* When the fault is no longer present, the DTC will be a history DTC.
* A history DTC will clear after 50 ignition cycles.
Reference Information
Schematic Reference
Door Lock/Indicator Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Door Lock/Indicator Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Power Door Latch Description and Operation (See: Body and Frame/Locks/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/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. Ignition OFF, with the doors closed, pull the exterior driver door handle. The driver door should unlatch allowing the driver door to be pulled
open.
瀚慖f the driver door does not open, refer to Driver Door Handle Switch Malfunction
2. With the doors closed, pull the exterior passenger door handle. The passenger door should unlatch allowing the passenger door to be pulled
open.
瀚慖f the passenger door does not open, refer to Passenger Door Handle Switch Malfunction
Circuit/System Testing
Driver Door Handle Switch Malfunction
1. Ignition OFF, disconnect the harness connector at the B27D door handle switch - driver.
2. Test for less than 30ohm between the ground circuit terminal listed below and ground.
* Ground circuit terminal 1
* Ground circuit terminal 4
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, test for greater than 9 V between the signal circuit terminal listed below and ground.
* Signal circuit terminal 2
