On my 1995 4Runner - V6, I've been tracing /repairing a string of AC problems. Now down to one -- the system will operate properly ONLY if # 3 terminal (pink) is grounded. This wire goes to the water temperature switch - it had a broken wire but the switch is also bad. If I ground the wire the system works/cycles properly - My question is can this sensor be bypassed - it looks like a PITA to get to or can someone give me the correct Toyota part number for this sensor, you wouldn't believe the hassle I ha dtring to get the cutoff relay - which all the dealers were telling me was in the engine compartment and not behind the glove box where I removed mine from.
Any help would be appreciated - THANKS

 

Probably be OK as long as you keep an eye on the engine temps with the A/C running. If the engine temps start to creep up out of it's normal range with A/C on, you may need to shut off the A/C to let the engine cool down if needed. A/C amplifier has always been behind the glove box on the Toyota trucks, at least on the 1st and 2nd gens, a factory Service Manual would show the part location.

 

Thank you., Yes the amp and the cutoff relay were exactly where the manual told me they were but you wouldn't believe how difficult it was to convince 2 toyota parts dept of that! Anyhow - thanks for you help. Have a great day