Question about 1995 GMC Yukon

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My a/c quit working. i checked relay module and its good all the fuses are good. I was talking with a friend and he said it might be the recycling switch

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Low freon , has automatic shut off when low to save compressor

Posted on Sep 16, 2011

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Front blower motor quit working replaced ignition switch,control module,resister,and blower motor but still doesnt work fuses are all good where do i look next


normally it is the resistor,( relay) then resistor module then motor.
did you test the relay(I believe located under hood, relay/fuse center), If OK check plugs and wires for melting, damage and good connection, grounds should also be checked. Use a volt ohm meter to see if you are getting any power ti motor,etc.
the first link below gives good how to diagnose blower,press the helpful button
GM Blower Motor Resistor Diagnostics by Wells

DIagnose and Replace GM blower Control Module

http://www.gmcproblems.com/tsbs/Envoy/2003

Jan 30, 2016 | 2003 GMC Envoy Xl

1 Answer

Won,t start ..battery was dead..jumped.. Recharged.wont crank


Battery cable connections ? Need to hook up scan tool to see if the modules on the vehicle are communicating ! Voltage drop test starting system . Check START 1 relay in underhood fuse/relay box ! Check PCM/BATT fuse 10amp ! Check power at relay ! This video shows how ! VEHICLE RELAYS Operation Diagnosis If you don't know, best take to a ASE certified technician before you break it ? How to Test and Troubleshoot Starter Problem

Jul 29, 2015 | 2003 Buick LeSabre

1 Answer

Relay and module


I think you might be talking about the "Trailer Lighting Converter" or the "Tow Ready" Tail Light Converter, or they may call it a trailer light module. This module plugs into the vehicles OEM harness. If this failed then you could have such symptoms. But they could also be talking about the "Trailer Light Socket" (your trailer electrical plug plugs into this socket). I hope this helps. If not try to give more details. Good luck.

Mar 11, 2014 | 2004 Dodge Ram 1500

1 Answer

Turn signal flasher location 2003 suzuki XL-7


the FSM book covers this.
as does alldata.com, (USA cars)
checked fuses yet?
turn/back fuse.
feeds the.:
turnback relay & answer back relay (module)
a digital switch in the lever (combo) it just sends ground logic
level to the module.
so sound to me to be
one light is shorted. (or trailer wire hacks) "visual inspections!,"
or the module is bad.
if both sides are bad, seems bad module to me,
if all lights blink fully bright on hazard the lights should be good.

the module is just under the steering wheel , under those
plastic covers, the books shows simple access. to the combo
my book dont show module location
i use a rubber hose to my ear to find any relay, clicks.
if you find hazard click , (assuming it does) then same place
is the turn sigs.
its not in the fuse box, cab , i looked.


hope that helps.

alldata.com
has it.

Feb 20, 2014 | Suzuki XL7 Cars & Trucks

1 Answer

Headlights/fog lights/courtesy lights/interior lights flickering


BAD GROUNDS. check all the negative grounds and make sure they are all good also check to see if you can hear any of the relays clicking , usually indicates bad relay or a bod connection to the relay

Jan 12, 2013 | Cars & Trucks

1 Answer

2003 Cadillac STS door and truck lock quit working


I checked all the fuses and relays and all are in good shape???????
Did you check the correct one's ,that's the question ? And did you use a voltmeter or test light to check across the correct fuse's ? And how did you check the relay's ????? Videos on youtube on how to test a relay ! And using a wiring diagram or power flow diagram that shows all componets of the none working systems ., Plus you need to know how the thing's work . Data communication network is involved in the working of these thing's , Data messages from module to module !

The body control system consists of the following 3 modules:
• The Dash Integration Module (DIM)
• The Instrument Panel Module (IPM)
• The Rear Integration Module (RIM)
Rear Integration Module (RIM)
The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.
The RIM functions include the following:
• Automatic level control
• CIGAR relay control
• Class 2 communication requiring RIM interaction
• Content theft deterrent
• Fuel door control
• Fuel level sensor input
• Heated seat control
• HVAC blower control
• LK/CYL relay control
• Park brake relay control
• Rear defog relay control
• Rear park assist chime control
• Retained accessory power (RAP) relay control
• Reverse relay control
• Transmission shift inhibit
• Trunk release relay control
• Various controls for the interior lamps

Just looking at fuse's and relay's isn't enough ! Hooking up a factory scan tool an checking for DTC'S - diagnostic trouble codes in all the vehicle control modules is always the first step . Which fuse boxes did you check ? Do you know there is a fuse box under the back seat ?
Fuse Block - Rear
Left rear of the passenger compartment, under the rear seat !
The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door, but the rear integration module (RIM), which is the master control for the door lock system, determines when the lock functions are permitted. The RIM receives and examines the requested lock function from the individual door modules, or from the remote function actuator (RFA) via the class 2 serial data circuit. The RIM also examines the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. If the RIM determines that a lock or unlock function is permitted, it sends a class 2 message back to the individual door modules commanding them to perform that Lock or Unlock function.
Your best bet , take it to the dealer !

Jun 06, 2017 | 2003 Cadillac Seville STS

2 Answers

The driver seat heater just quit. all fuses are good. how do you tell if the relay is good?


Swap it with a relay you know to be good and see if it works again,pick a relay that is not important to the function of your car.

Nov 01, 2009 | 2004 Cadillac SRX

2 Answers

No turn signals but flashers work


There a two modules 1 for the turn signals and 1 for the flashers. Look under your dash around the steering wheel and fuse box area for one that is in the wiring harness.

May 31, 2009 | 1991 Ford Ranger Supercab

2 Answers

Heated and cooled seats quit working. won't work on either driver's or passanger's seats. checked the fuses and relays and they are all ok. what's wrong?


Remove fuses 10 and 11 in the underhood junction box. Leave out for 5 minutes then reinstall. If the seats start working your Zephyrs dual climate control seat module will need replaced.

Apr 23, 2009 | 2006 Lincoln Zephyr

2 Answers

1998 gran cherokee power failure in driver side


Get a New LED Flashlight and Hold it Behind the Fuses to check them for a Blown Fuse First. There is a Fuse box inside the Jeep and a Fuse Relay Box Under the Hood. Under the Hood also Check the Fuses, If the Fuses are all Good, Then look for a Relay Box in the Box under the Hood. There should be a Relay for PW, PL, Inside this Box. Just Replace the Relays and they Should Work. Please Rate My Response! Thanks!

Jan 31, 2009 | 1998 Jeep Grand Cherokee

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