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52–RECIRC DOOR RANGE TOO LARGE (MTC) (CONTINUED) 3. CHECK THE RECIRCULATION DOOR & A/C HEATER HOUSING FOR WARPED, WORN, & DAMAGED Inspect for excessively worn door linkage and for a damaged or broken A/C Heater Housing Assembly. Inspect for Are there any physical or mechanical problems with the door or housing? Yes >> Repair as necessary in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Replace the Recirculation Door Actuator in accordance with the Service Information. Then, Go To 4. 4. VERIFY THAT THE FAULT IS STILL 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 5 seconds and then release the A/C mode • 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 5 seconds and then release the A/C mode NOTE: The A/C status indicator displays active DTCs when the EBL status indictor is not illuminated and Does the A/C status indicator display DTC 52? Yes >> Replace the A/C Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE). 24 - 116 HVAC - ELECTRICAL DIAGNOSTICS WK |