Problem with climate control on 87 300zx
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jerryparksSenior Member
- 242
Problem with climate control on 87 300zx
I'm still working through the Gremlins on my 87 300 ZX that I recently purchased. I cannot seem to get the climate control module to activate. It will not turn on. Anybody have any idea what I need to investigate in solving this problem. The fuses are all OK and all the relays on the pass side inside fender appear all good. I also changed out one of the relays that appeared bad with a good one from my part car. HELP NEEDED !! -
badq45tSenior Member
- 300
Do you have a digital or analog system? The cures are very different as the HVAC systems are completely different. Reply back and then we can help you figure out. -
jerryparksSenior Member
- 242
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badq45tSenior Member
- 300
Yes so that is a completely different climate control system than digital dash, more manual and fewer gremlins. I am not as familar with analog but if the fan isn't coming on I would troubleshoot that first before going after the rest of the system. -
jerryparksSenior Member
- 242
I can push the little override button on the climate control unit and it will activate the fan and heat through the vents on the windshield. -
Z_KarmaAdministrator
- 3318
The analog climate control is still electronically controlled, it just doesn't have a LCD display. It is subject to electrical gremlins the same as the digital unit.
If the manual override works, then I would first attempt the easiest solution: Try another manual climate control. Especially if yours is unresponsive.
The FSM also has a troubleshooting process in section HA-34 that could be valuable to you.
84 AE/Shiro #683/Shiro #820/84 Turbo -
badq45tSenior Member
- 300
I didn't know that it was still electronically controlled I guess that makes sense given that the guts of the car would be the same behind the dash. Jerry you should order a new one from Steve at z31partsforyou.com and see if that solves your problem.
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