1994 Honda Civic IAT sensor power supply

1994 HONDA CIVIC
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ED POMAR
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Electrical problem
1994 Honda Civic 4 cyl Front Wheel Drive Manual

I have checked the IAT sensor for voltage readings but no voltage, where will I find the power source, according to the manual there should be 5 volts
Sep 24, 2010 at 10:13 PM
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RASMATAZ
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The 5 volts power source comes from computer connector D- D22 SG with the green and white wire-also powers the TPS,CTS and Heated Oxygen Sensor
Sep 24, 2010 at 10:35 PM
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JDL
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Pin 16 at the datalink connector should be hot all the time, is it? If no voltage, check the fuse, rdo--cluster--misc fuse, 10 amp in the fuse box. My info shows a security system on your vehicle, I probably can't track that from here.

The purple wire at the starter solenoid S terminal, should be hot with the key in the crank position, if it isn't hot, backtrack the circuit. Any testing make sure the tranny is in park or neutral and the e-brake is set.
Nov 3, 2010 at 8:21 AM
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