Starter not working

JON ROSE

MEMBER
2008 CADILLAC CTS
3.6L
6 CYL
2WD
AUTOMATIC
90,000 MILES

This car won't turn over for several minutes, then after about 10 minutes will start. The passenger door is not functional, locks and window not working. All of the gauges will drop out when driving sometimes. Seemed like passenger door body module may be bad? Any clues to this problem? Happens several times per week in summer and winter weather.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
43,351 POSTS

Hello,

It does sounds like the passenger side door module is out which is common here is the location and instructions on how to replace it.

Front Passenger Door Module (FPDM) (DDM Similar) On respective front door, under door trim panel.

Service Programming System (SPS)
For step-by-step programming instructions, please refer to the techline information system (TIS) terminal.

Review the information below to ensure proper programming protocol.

IMPORTANT:
DO NOT program a control module unless you are directed by a service procedure or you are directed by a General Motors Corporation service bulletin. Programming a control module at any other time will not permanently correct a customers concern.
It is essential that the Tech 2 and the TIS terminal are both equipped with the latest software before performing service programming system (SPS).
Due to the time requirements of programming a controller, it is recommended that an external power source be used to maintain system voltage. Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. To ensure trouble-free programming, GM recommends using one of the following external power sources:
A Midtronic PCS charger
A fully charged 12V jumper or booster pack disconnected from the AC voltage supply
Some modules will require additional programming/setup events performed before or after programming.
Some vehicles may require the use of a CANDi module for programming.
Review the appropriate service information for these procedures.
DTCs may set during programming. Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.
Ensure the following conditions are met before programming a control module:

To confirm the isuse a CAN scan should be done first. here is a video you can get a scanner from Amazon for about $50.00:

https://youtu.be/InIlnsjOVFA

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.