My 2002 buick want start i think its in the wiring harness behind drivers seat but i cant tell but it all corroded a pins might missing. also my gas gage goes haywire, my obd2 codes p0449,p0452

Where did you hear that one at . There isn't anything ,no connector ,no purple wire that gets corroded . Without proper service information , wiring diagrams etc... This diagnoses could take sometime . There is a ppl wire from the PCM / Crank fuse 10amp located in the instrument panel fuse box . When you turn the key to start B+ voltage is supplied to that fuse . from there it goes to the PCM crank sense input . From there the PCM energizes the starter relay sending B+ voltage to the starter solenoid . Turning over the engine . Suggest you look at a wiring diagram at http://www.bbbind.com/free_tsb.html Enter your vehicle info. year , make , model , engine size . System (engine ) Subsystem (starting )

There are 4 electric motors under each seat and a 5th inside the back rest. Also under each seat is a module containing the relay and memory module It is possible to run new wires but the job will be much simpler if you have (or can get) a pair of original wiring harnesses to go between the module and the harness behind the centre console (remove ashtray, lighter and storage bin) Spade terminals can be used if the module is missing. Make sure the wiring colours all match.

Of course, this is a simplified explanation. Go to Rovers.net for more detail

sounds like a problem with part of
the sending unit

Have you recently cleaned your car and pulled anything out from under the drivers seat? You may have accidentally pulled a wiring harness apart. The actuators that move the seats sometimes freeze, especially if you get right to the end point of motion, giving it a light wack with a wrench can usually free them up, but they shouldn't all stop working at once. It may also be the wiring under the carpet has corroded through. I would start with the harness under the drivers seat and back track the wiring to the fuse box.

2009 CHEVROLET SILVERADO C1500 4DR TRUCK WITH 4.3L ENGINE AND STANDARD AUDIO SYSTEM

Remote Start
WIRE COLOR POLARITY LOCATION
Battery RED/WHITE (+) IGNITION SWITCH HARNESS
LOW CURRENT, FOR HIGH CURRENT USE RED/BLACK AT VEHICLE FUSE BOX
Ignition 1 PINK (+) IGNITION SWITCH HARNESS
Accessory 1 BROWN (+) IGNITION SWITCH HARNESS
MAY BE YELLOW ON SOME MODELS
Accessory 2 PINK/BLACK (+) IGNTION SWITCH HARNESS
FOR REMOTE START INTEGRATION
Starter 1 YELLOW/BLACK (+) AT MODULE UNDER HOOD BEHIND DRIVER HEADLIGHT
NOT FOR REMOTE START, FOR REMOTE START INFORMATION
Starter 2 PINK/BLACK (+) IGNITION SWITCH HARNESS
FOR REMOTE START INTEGRATION
Anti-Theft Type GM PASSKEY III® ANTI-THEFT SYSTEM
Anti-Theft Descript THE KEY SENDS AN RF SIGNAL TO THE BCM MODULE THROUGH AN ANTENNA LOCATED AROUND THE IGNITION CYLINDER
Key Sense PINK (+) IGNITION SWITCH HARNESS
Tachometer WHITE (-) AT IGNITION COIL
Speed Sense YELLOW/BLACK (AC) AT ECM MODULE UNDER HOOD ON DRIVER FENDER
BLACK PLUG PIN #57
Parking Lights LIGHT BLUE (-) AT VEHICLE LIGHT SWITCH
Brake Lights LIGHT BLUE/WHITE (+) AT SWITCH ABOVE BRAKE PEDAL
IGNITION MUST BE ON FOR THIS WIRE TO TEST
Reverse Lights DARK BLUE (+) AT BCM MODULE UNDER DRIVER DASH
Horn TAN (-) IN HARNESS AT STEERING COLUMN
ALSO AT BCM MODULE UNDER DRIVER DASH
Modules
WIRE LOCATION
Please select another category
Doorlocks/Windows
WIRE COLOR POLARITY LOCATION
Power Unlock WHITE (-) AT BCM MODULE UNDER DRIVERS SIDE OF DASH
THIS WIRE UNLOCKS THE REAR DOORS ONLY, WILL REQUIRE A 5-WIRE SET-UP IN EACH FRONT DOOR TO INTEGRATE OR A SERIAL DATA MODULE FROM AN ALARM MANUFACTURER
PowerLock LIGHT BLUE (+) AT BCM MODULE UNDER DRIVERS SIDE OF DASH
THIS WIRE LOCKS THE REAR DOORS ONLY, WILL REQUIRE A 5-WIRE SET-UP IN EACH FRONT DOOR TO INTEGRATE OR A SERIAL DATA MODULE FROM AN ALARM MANUFACTURER

i would use a DLPK module

DLPK (2009 Chevrolet Silverado)
W2W
CC-Heated Seats Activation
DL-Arm Factory Security
DL-Disarm Factory Security
DL-Door Lock Control
DL-Door Unlock
DL-Driver Priority Unlock
PK-Immobilizer Bypass-Data No Key Req'd
RS-RAP Shut Down (Remote ACC Power)
RS-Tach / RPM Output
SS-Entry Monitoring ALL Door Pins
SS-Entry Monitoring Driver Door Pin
SS-Entry Monitoring Front Door Pins
SS-Entry Monitoring Hood Pin
D2D
CC-Heated Seats
DL-Arm Factory Security
DL-Disarm Factory Security
DL-Door Lock Control
DL-Door Unlock
DL-Driver Priority Unlock
PK-Immobilizer Bypass-Data No Key Req'd
RS-RAP Shut Down (Remote ACC Power)
RS-Tach / RPM Output
SS-Entry Monitoring ALL Door Pins
SS-Entry Monitoring Driver Door Pin
SS-Entry Monitoring Front Door Pins
SS-Entry Monitoring Hood Pin


Hope helps.

Just pull the wires out of the plastic loom on the right side. It is common for them to either break or corrode in the short section of harness from the hub assembly to the frame rail. If you find the bad spot the harnesses are available from your local NAPA and are pretty common so they may have them in stock.

The other common thing to happen is one of the pins gets bent at the connector. Make sure this didn't happen by looking into the connector and make sure both pins look the same and are straight.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

The last time I checked one of these, the wiring harness for everything you just described is underneath the seat. You'll have to move the seat all the way forward or back to get to the harnesses to reconnect them.

I hope this helps! :) Let me know if you need any further assistance in this matter.

I have an 2002 Liberty had the same/similiar problems, have the dealer check the wire harness that runs underneath the driver's seat, my wires had gotten wet from somehow and it caused the wires to corrode, they had to replace sections of the wire harness to fix the problem.


Will

My gas guage went from Empty to Full on its own and I never knew how much gas was in my vehicle. I was driving the other day and it stalled. Pulled into a parking lot let it sit a bit and it started right back up and I was able to drive again. Went to nearest gas station to put gas in. I put in $10 and I drove 3.4 miles and well it died on me again. I pushed the vehicle into my garage. I called around to see what could be wrong and I was told numerous things. I finally went under the vehicle where there is this clearish/white box under the Driverside area and I noticed it was corroded and dirty. I went in the house got a spray bottle with HOT WATER and sprayed it. I noticed that I had 3 prongs broke off. So I went to a local dealership for GM/Buick and I got the pins I needed to fix the problem and I went home fixed the broken pins and well now my vehicle works great and the vehicle runs great and gas guage problem was fixed as well. So for all of you that think you might have a fuel problem, fuel pump problem or gas guage problem check into the wire harness box under your vehicle and you will be able to fix it for Pennies instead of paying the $750 or more for something you cna fix at home. I love my Rendezvous and I would buy another one again.