Checked fuses and relays

Tiny
DOUGGM1965
  • MEMBER
  • 1997 MITSUBISHI 3000GT
  • 165,000 MILES
1997 Mitsubishi montero. The a/c stopped working while driving yesterday, the light on the a/c on/off switch does not come on. I am pretty sure all
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Saturday, August 27th, 2011 AT 7:18 PM

5 Replies

Tiny
KHLOW2008
  • EXPERT
Is vehicle with DOHC turbo, DOHC or SOHC engine?
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+1
Sunday, August 28th, 2011 AT 4:51 AM
Tiny
DOUGGM1965
  • MEMBER
3.0 liter dohc
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Sunday, August 28th, 2011 AT 11:28 PM
Tiny
KHLOW2008
  • EXPERT
Sorry for the oversight. I just noted that the title is 3000GT whereas the content has Montero as heading, so I am guessing that Montero is the correct vehicle you are refering to.

Attached is the wiring schematic and I need some details of the problem in order to understand it better.

1. Is the blower motor working when A/C is turned on?
2. Prior to this occurring, did the A/C system seem to work less efficiently?
3. Have you checked the freon pressure?
4. Does turning between ECO and A/C on the A/C switch make any difference?
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Monday, August 29th, 2011 AT 1:30 PM
Tiny
DOUGGM1965
  • MEMBER
The fan works fine, no eco. System worked ok. The ac button light doesnt come on anymore. Either. The system is full.
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Monday, August 29th, 2011 AT 9:58 PM
Tiny
KHLOW2008
  • EXPERT
At the A/C button, use a test lamp or DVOM to check for battery voltage at the Blue/White wire, if battery voltage is not available, check the blower switch.
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Tuesday, August 30th, 2011 AT 5:05 AM

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