2010 Cadillac CTS Sedan AWD V6-3.6L Page 773

2010 Cadillac CTS Sedan AWD V6-3.6L Page 773

* The ABS and TCS indicators illuminates on the IPC.

* The brake warning indicator illuminates.

* The driver information center (DIC) displays the SERVICE STABILITRAK / SERVICE TRACTION CONTROL message.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.

* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

* A low voltage DTC in multiple modules indicates a concern in the charging system

* Inspect the ground connection G110 to ensure that it is clean and tight.

Reference Information

Schematic Reference

Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

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

Description and Operation

ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/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. Engine running measure and record the voltage at the battery terminals. Verify that the battery voltage is 12.6-15.5 V.

瀚慖f 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. Observe the scan tool EBCM Battery Voltage Signal parameter. The reading should be between 12.6 and 15.5 V.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the EBCM.

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 1

* Terminal 25

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

3. Verify that a test lamp illuminates between the B+ circuit terminals listed below and ground:

* Terminal 13

* Terminal 38

瀚慖f the test lamp does not illuminate, test the B+ circuits for a short to ground or an open/high resistance.

4. If all circuits test normal, replace the EBCM.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup and programming