2004 Isuzu ascender rear fan does not work. tested blower with 12 volts works fine, installed new blower motor resistor no help, could be rear ac controller?
You may have a bad controller. Test for 12 volts coming out of it on the biggest wires. It is usually the culprit. They are in the junk yards and not usually all that expensive.
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You may have a bad controller. Test for 12 volts coming out of it on the biggest wires. It is usually the culprit. They are in the junk yards and not usually all that expensive.