Heated Seats - Malfunctioning

hitempguy · December 22, 2011

There is a TSB on the wiring harness about a short near the seat frame. I haven't been able to find the TSB to give you a link for the short, but I will keep looking. Disconnect the harness for the seat heaters, should have green connector and use a mulitmeter to pin point the fault. 3.

When measuring the resistance of the seat heater elements, ensure the values are within the updated range of 1.5-5.5 ohms. Refer to DTC B2425 or B2430-Clearing the DTC in the Diagnostic Information and Procedures in the Seats sub-section of the applicable Service Manual.

Here is another bulletin:

May not be applicable to your '06

Bulletin No.: 05-08-50-008

Date: August 19, 2005

TECHNICAL

Subject:

Intermittent Heated Seats Inoperative, DTC B3941 Set (Reprogram Driver Seat Module)

Models:

2003-2005 Cadillac Escalade, Escalade ESV, Escalade EXT

2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2003-2005 GMC Sierra, Yukon, Yukon XL, Yukon Denali

All with Seat FRT, Individual (Non BKT) (RPO AN3)

2003-2005 HUMMER H2 with Seat, Front Bucket Deluxe (RPO AR9)

Condition

Some customers may comment that occasionally the seat heater will not operate when activated. If the ignition key is cycled OFF and back ON again, the heated seat will operate correctly. Also, on some LB7 diesel engine vehicles, the seat heater may turn itself off during the first 10 minutes of operation. This occurs only with the first activation for the day and works correctly with subsequent activations immediately after the event. These conditions are intermiffent and DTC B3941 may be set.

Correction

Technicians are to reprogram the driver seat module with an updated software calibration. This new service calibration was released with TIS satellite data update version 6.5 available June 13, 2005. As always, make sure your Tech 2® is updated with the latest software version.

gmtech4 · December 22, 2011

you are correct ,it DOES NOT apply to his GD 06,but thx for trying,

my apprentice tried the same crap for an 03 truck using a GD 99 MY (model year) only bulletin,,,,,guess what ,,it didnt work,,

read the GD years of veh's affected before posting GD bulletins .....people WILL quote it to a service writer somewhere and be PISSED that its the dealers fault when it fails!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

rant OFFFFFF