2010 Cadillac CTS Sedan AWD V6-3.6L Page 394

2010 Cadillac CTS Sedan AWD V6-3.6L Page 394

* AFL motor control terminal 4

瀚慖f the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the headlamp control module.

6. If all circuits test normal, replace the appropriate headlamp assembly.

Repair Instructions

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

* Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement (TT6) (See: Lighting and

Horns/Headlamp/Service and Repair/Removal and Replacement/Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park,

Turn Signal Bulb Replacement (TT6))Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb

Replacement (TT7) (See: Lighting and Horns/Headlamp/Service and Repair/Removal and Replacement/Headlamp Assembly or Headlamp

Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement (TT7))Headlamp Assembly or Headlamp Bulb and/or Cornering,

Sidemarker, Park, Turn Signal Bulb Replacement (TT8) (See: Lighting and Horns/Headlamp/Service and Repair/Removal and

Replacement/Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement (TT8))Headlamp

Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement (Without TT6/TT7/TT8/T84/T85) (See:

Lighting and Horns/Headlamp/Service and Repair/Removal and Replacement/Headlamp Assembly or Headlamp Bulb and/or Cornering,

Sidemarker, Park, Turn Signal Bulb Replacement (Without TT6/TT7/TT8/T84/T8)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for headlamp control module replacement, setup,

and programming

B1474

DTC B1474

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B1474 02

- Exterior Passenger Door Handle Switch Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The right front exterior door handle switch signal circuit provides inputs to the remote control door lock receiver (RCDLR) and the passenger door