2010 Cadillac CTS Sedan AWD V6-3.6L Page 427

2010 Cadillac CTS Sedan AWD V6-3.6L Page 427

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

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 Descriptors

DTC B1735 01

- Seat Front Up Switch Circuit Short to Battery

DTC B1740 01

- Seat Front Down Switch Circuit Short to Battery

DTC B1745 01

- Seat Rear Up Switch Circuit Short to Battery

DTC B1750 01

- Seat Rear Down Switch Circuit Short to Battery

DTC B1755 01

- Seat Assembly Forward Switch Circuit Short to Battery

DTC B1760 01

- Seat Assembly Rearward Switch Circuit Short to Battery

DTC B1815 01

- Seat Recline Forward Switch Circuit Short to Battery

DTC B1820 01

- Seat Recline Rearward Switch Circuit Short to Battery

Diagnostic Fault Information

Circuit/System Description

When the power seat switches are pressed, they send a 12 V signal through the switch signal circuits to the memory seat module (MSM). The MSM

then commands the driver seat and lumbar motors to move in response to the switch signals.

Conditions for Running the DTC