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B105A–RECIRCULATION DOOR CONTROL CIRCUIT HIGH (MTC) (CONTINUED) For the Manual Temperature Control (MTC) circuit diagram (Refer to 24 - HEATING & AIR CONDITIONING - SCHE- For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes (C32) RECIRCULATION DOOR DRIVER CIRCUIT SHORTED TO VOLTAGE A/C HEATER CONTROL Theory of Operation The A/C Heater Control drives the Recirculation Door Actuator via the (C32) Recirculation Door Driver circuit and Diagnostic Test 1. CHECK (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the A/C Heater Control C1 harness connector. Turn the ignition on. Measure the voltage of the (C32) Recirculation Door Driver circuit. Is the voltage above 0.2 volts? Yes >> Repair the (C32) Recirculation Door Driver circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1. No >> Go To 2 HB HVAC - ELECTRICAL DIAGNOSTICS 24 - 93 |