17 Cleaver Automotive Ac Wiring Diagram Collections
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17 Cleaver Automotive Ac Wiring Diagram Collections - In case you see battery voltage on one terminal, leave the lead in that terminal and move the bad lead to the other terminal. In case you see battery voltage with each leads related to the electric connector, that confirms the compressor clutch is getting strength and ground. Meaning the grasp coil is horrific. A few clutches are replaceable, others aren’t and you ought to update the entire compressor.
With the meter set at ohms, connect one meter lead to one terminal (five) on the low pressure switch and the opposite result in the other terminal (7) at the switch. If the switch is closed, the refrigerant stage is good and you’ll get an ohms reading. If the pressure is too low, the switch might be open and also you’ll get an countless reading between five & 7. If so, add refrigerant. Do now not vicinity a jumper across the low pressure switch in other to begin the compressor. Refrigerant includes oil to lubricate the compressor. Running the compressor while it’s low on price can starve the compressor of oil, destroying it within the technique.
Locate the compressor clutch relay and do away with it from its socket. Connect the bad meter result in battery bad terminal. Probe the relay socket terminals to discover battery energy at terminals 2 & 3. In case you don’t see battery voltage on each terminals, check the fuses and wiring to the relay. If you have battery electricity on both terminals, connect the fine lead to terminal 3 and the bad cause terminal 4. You must see battery voltage. In case you don’t, the pcm isn’t imparting ground to the relay control coil, pass to step 3.
Engine off. Disconnect the electric connector at compressor seize. Set meter at dc volts. Connect tremendous cause one terminal in grab electric connector (1) , terrible result in battery ground. Begin engine with a/c grew to become to max. Look for battery voltage on meter. If voltage is 0, move high-quality result in the other terminal in electric connector. If nevertheless zero, continue to step 2.
Repeat the take a look at on the high strain transfer. With the meter set at ohms, connect one meter cause one terminal (6) on the excessive pressure transfer and the other result in the opposite terminal (8) on the transfer. If the transfer is closed, the refrigerant pressure is right and you’ll get an ohms analyzing. If the pressure is too high, the switch may be open and you’ll get an countless reading among five & 7. In that case, you've got a severe limit someplace in the system and it must be serviced with the aid of a professional.