The blower motor doesn't work in my 94 isuzu pickup

1994 ISUZU TRUCK
260,000 MILES • 6 CYL • 4WD • MANUAL
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ISUZU26
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I can't get the blower motor to work in my truck. the voltage reads 14 volts and the motor has continuity. I even tried buying a new motor but it still doesn't work. I've checked the relay, oil pressure, switch, and on/off switch for the motor and they all check out. What should I do next?
Jun 18, 2011 at 9:24 PM
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RASMATAZ
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The oil pressrue switch has nothing to do with the AC/Heater motor-Check and test the following AC/Heater fuse, blower relay, blower resistor and blower switch-Try powering the blower motor direct from the battery and see what happens
Jun 18, 2011 at 9:37 PM
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KHLOW2008
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  • 41,814 POSTS
Attached is a schematic of the heater circuit.

If grounding the Blue/Black with connectors plugged in runs the motor, check the ground circuit connections at right kick panel. Try grounding the Red/Blue wire from the resistor. If motor does not run, the resistor is bad.
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Jun 19, 2011 at 9:53 AM
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