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56–RECIRC DOOR LINKAGE BROKEN (MTC) For a complete wiring diagram Refer to Section 8W. Theory of Operation NOTE: Diagnose and repair Actuator Circuit Test faults (DTC 61, 62, 63, 64, 67, 68, 69, 71, and 72) before The purpose of actuator calibration is to determine the total span of door travel between physical stops. To calibrate • When Monitored: • Set Condition: Possible Causes ACTUATOR CIRCUIT TEST FAULTS PRESENT OVERCURRENT FAULTS PRESENT RECIRCULATION DOOR OR A/C HEATER HOUSING COMPONENTS DISCONNECTED, MISSING, BROKEN RECIRCULATION DOOR ACTUATOR A/C HEATER CONTROL Diagnostic Test 1. VERIFY IF ANY ACTUATOR CIRCUIT TEST FAULTS OR OVERCURRENT FAULTS ARE PRESENT Turn the ignition on. Actuate the Clear DTC function by performing the following: • Turn the blower control on. • Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately • When the A/C status indicator begins displaying DTCs, set the Mode switch to the floor position, simulta- Turn the ignition off, wait 10 seconds, and turn the ignition on. Actuate the Actuator Circuit Test / Door Calibration Function by performing the following: • Turn the blower control off. • Press and hold the EBL mode switch down and then turn the blower control on. Continue to hold the EBL Actuate the Display DTC function by performing the following: • Turn the blower control on. • Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately 24 - 90 HVAC - ELECTRICAL DIAGNOSTICS LX |