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2002 hyundai xg350 a/c will not engage

A/c is full charge but clutch will not engage will engage if relay is grounded,but then cooling fans will not turnon for condensor

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  • Cars & Trucks Master
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The engine computer controls the ground signal going to the ac relay as well as the fan relays. You'll need a shop manual to get the testing procedures for the HVAC system. It could be one of the pressure switches or something else.

Posted on Jun 29, 2013

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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ghost4548
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SOURCE: ac compressor will not engage 2003 hyundai xg 350

You found the problem (lost ground on relay)... Fix it! You solve this problem yourself.

Posted on Jun 02, 2009

duane_wong
  • 6826 Answers

SOURCE: Cooling fan doesn't come on when A/C compressor is

OK, if there is no ground for the relay coil then the harness needs to be taken apart and the break in the wire repaired.

Or, if the system is normally grounded except through the a/c climate control circuit, then you might try grounding the relay directly or permanently (this is only if the schematic says that the relay is normally grounded, and the positive is controlled by the hvac system.)

Hope this helps.

Posted on Jul 13, 2010

ZJLimited
  • 17970 Answers

SOURCE: air conditioner clutch does not

P0645 - A/C Clutch Relay Control Circuit
Means that an open or shorted condition detected in the A/C clutch relay control circuit.

If you replaced and check some components... Does the a/c clutch relay click when you turn the a/c relay on? It sounds that you have some kind of a module communication issue. It could be caused if one of your control modules is faulty and pulls all the network down. You should have your vehicle scanned with a scan tool that has access to other electronic modules ( ABS, Air bag, BCM). A DRB III scan tool has these capabilities.
Keep us updated.

Posted on Aug 03, 2011

emissionwiz
  • 85111 Answers

SOURCE: a/c wiring diagram for 2006 jeep liberty sport

I am sorry but fixya has no wiring diagrams for any car or truck. I suggest you try this site www.alldatadiy.com

Posted on Apr 13, 2012

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1 Answer

My cooling fan will not turn off. 2001 Hyundai Elantra GLS 2.0 l engine


1. Check the scan data for engine temperature to see if it shows that the engine is running hot. The ECM will turn the A/C relay off if it thinks that the engine is overheating. Check engine coolant temp sensor

2. Test voltage at the Powertrain Control Module (PCM) pin 50 (Yellow) and pin 58 Yellow/Black. Both should have battery voltage when the system is turned on and the engine is running. If not, then the wiring needs to be checked.

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1 Answer

Ac compressor will not engage 2003 hyundai xg 350


You found the problem (lost ground on relay)... Fix it! You solve this problem yourself.

May 02, 2009 | 2002 Hyundai XG350

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