Question about 2003 Pontiac Grand Prix

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Climate control switch does not work in lower modes only in high.

I have a 2003 Pontiac Grand Prix and the climate control switch will only work in the high (5) setting. Now usually this problem isn't the switch, are there any other possibilities.

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  • Gusteroni Jan 21, 2009

    I have solved this problem. It was the blower resistor. A little difficult to change but I have heat on all 5 settings now.

  • Anonymous Feb 17, 2009

    I TURN ON A/C 1/4 AND HEAD LIGHTS TURN OFF

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  • 17 Answers

The resister is located under the dash in the passenger footwell area. It is to the driver's side of the blower motor up against the firewall.

To remove, it's easiest to remove the passenger seat to lay down on the car floor. Next, find the blower resistor, remove the connector, remove the one front bolt and just loosen the two bolts by the firewall. Pull the resistor down and out from the two bolts. Installation of the new resistor is the opposite of removal.

Hope this helps

Posted on Apr 12, 2009

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I have a 1997 Pontiac Gran Prix and the air conditioner is full blast on the passenger side and on the drivers side is hot air?


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Replaced the climate control and blower wont work


f that just put power to the blower moter and see it it runs if you pull the relay jump a wire across the terminals with it out and add a ground wire to the case of the blower to another spot on the chasis if it still does not run your blower switch may be bad dont worry just run a toggle switch to a good blower moter

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1 Answer

Blower fan only works on high


CHECK THE HVAC CTRL FUSE.

WITH A TEST LIGHT CHECK THE BLOWER RESISTOR FOR POWER ON THE YELLOW, TAN, PURPLE, AND LIGHT BLUE WIRES. THE ORANGE WIRES CONTROL THE HIGH SPEED CIRCUIT. DO THIS FOR EACH POSITION OF THE BLOWER SWITCH.

THE BROWN WIRE ON THE HVAC CONTROL CONNECTOR 1 POSITION B COMES FROM THE HVAC FUSE 20 AMP. NO POWER ON THAT WIRE WILL CAUSE THE BLOWER TO NOT FUNCTION ON THE LOWER SPEEDS.

Jul 14, 2009 | 2000 Pontiac Grand Prix

1 Answer

Climate control switch does not work in lower modes only in high.


The pontiacs have an issue with the ignition switch, I have a 2001 grand prix that did the same. The ac fan would only work on 5 and the headlights would go off if on 1-4 replace the switch and all is fine.

Jun 02, 2009 | 2003 Pontiac Grand Prix

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2006 Pontiac Grand Prix Dual-Climate Control Light Issues


The lighting in the A/C control head is not serviced. If you want it repaired you will have to but a control head. Good Luck

May 26, 2009 | 2006 Pontiac Grand Prix

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Climate controls are now in Celsius. HELP


On your DIC (driver information center) to the left you will see 3 buttons arranged vertically.
The ENG/MET button is used to switch between english and metric. Push that button until all displays are in english, that should return your climate control to fahrenheit.

Once you have completed that, push and hold the "reset" button down for 2 seconds ( button just below the ENG/MET button). That should reset you DIC to the default brightness as well as your other displays.

Give it a try and let me know.
Regards,

May 02, 2009 | 1998 Pontiac Grand Prix

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