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Home >> Ford >> 2006 >> Explorer 4WD V8-4.6L VIN 8 >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test U: The Temperature Control Is Inoperative Using the Front Auxiliary Climate Controls
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Test U: The Temperature Control Is Inoperative Using the Front Auxiliary Climate Controls

PINPOINT TEST U: THE TEMPERATURE CONTROL IS INOPERATIVE USING THE FRONT AUXILIARY CLIMATE CONTROLS


U1:






U1-U3:






U3-U4:






Normal Operation
Under normal operation, the auxiliary temperature blend door actuator motor is supplied voltage by circuit SBP28 (GN/RD) and ground by circuit GD140 (BK/GN). A signal voltage is received by the auxiliary temperature blend door actuator motor from the front auxiliary temperature control through circuit VHA09 (VT/BN).

Possible Causes
- Fuse
- An open, short to voltage, ground or together in circuits GD140 (BK/GN), SBP28 (GN/RD) or VHA09 (VT/BN)
- Front auxiliary climate control assembly
- Auxiliary temperature blend door actuator motor
- Broken/binding auxiliary temperature blend door
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