Calais FWD V6-181 3.0L (1986)
Blower Motor: Component Tests and General Diagnostics
Test A: Blower Motor Test
Test A Blower Motor Test
Check Fuse 22 by operating the Trunk Release. Measure the voltages to ground at the Blower Motor with the connectors in place.
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If the voltages at the motor are correct, and connector pins are not loose but motor does not run, install a new Blower Motor.
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If Battery voltage is not at the PPL wire, check the wire for opens. If wire is good, complete the A/C Function Selector and the Blower Relay tests.
Test B: A/C Function Selector Test
A/C Function Selector Test.
Backprobe the connector to the A/C Control Assembly and measure the voltage to ground with the connector still on the assembly.
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If Battery voltage is not present at terminal E, check the BRN wire circuit back to the fuse.
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If Battery voltage is at terminal E, but not at terminal B, install a new Mode Select Switch.
Test C: Blower Switch Test
