2010 Cadillac Truck SRX FWD V6-3.0L Page 744

2010 Cadillac Truck SRX FWD V6-3.0L Page 744

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

Description and Operation

Exterior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Exterior Lighting Systems)

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. Ignition ON, with the turn signal switch in the left position, observe the function of the E4LF turn signal lamp-left front and the E4Y turn

signal repeater lamp-left. Each lamp should flash ON and OFF.

2. With the turn signal switch in the right position, observe the function of the E4RF turn signal lamp-right front and the E4Z turn signal

repeater lamp-right. Each lamp should flash ON and OFF.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate turn signal lamp.

2. Test for less than 30 ohm between the ground circuit terminal listed below and ground.

* E4Y turn signal repeater lamp-left terminal 2

* E4Z turn signal repeater lamp-right terminal 2

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

3. Disconnect the inline harness connector at the appropriate E4LF turn signal lamp-front listed below:

* E4LF turn signal lamp-left front X115 (Without TT6/TT7/TT8)

* E4LF turn signal lamp-left front X111 (With TT6/TT7/TT8)

* E4RF turn signal lamp-right front X116 (Without TT6/TT7/TT8)

* E4RF turn signal lamp-right front X112 (With TT6/TT7/TT8)

4. Connect a test lamp between the control circuit terminal listed below and ground.

* E4LF turn signal lamp-left front terminal J

* E4RF turn signal lamp-right front terminal J

* E4Y turn signal repeater lamp-left terminal 1

* E4Z turn signal repeater lamp-right terminal 1

5. Command the appropriate Turn Signal Lamp ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between

the commanded states.

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 an open/high resistance. If the circuit tests normal, replace

the K9 BCM.

6. If all circuits test normal, replace the turn signal lamp.

Repair Instructions

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

* Front Side Turn Signal Lamp Bulb Replacement (See: Lighting and Horns/Turn Signals/Turn Signal Lamp/Turn Signal Bulb/Service and

Repair/Front Side Turn Signal Lamp Bulb Replacement)

* Front Turn Signal Lamp Bulb Replacement (T84, T85 Driver Side Headlamp) (See: Lighting and Horns/Turn Signals/Turn Signal

Lamp/Turn Signal Bulb/Service and Repair/Front Turn Signal Lamp Bulb Replacement (T84, T85 Driver Side Headlamp))Front Turn Signal

Lamp Bulb Replacement (T84, T85 Passenger Side Headlamp) (See: Lighting and Horns/Turn Signals/Turn Signal Lamp/Turn Signal

Bulb/Service and Repair/Front Turn Signal Lamp Bulb Replacement (T84, T85 Passenger Side Headlamp))Front Turn Signal Lamp Bulb