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4. CHECK THE (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (C55) Left Blend Door Common Driver Is the resistance below 5.0 ohms? Yes >> Replace the Left Blend Door Actuator in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- No >> Repair the (C55) Left Blend Door Common Driver circuit for an open. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- 5. INSPECT ACTUATOR & HOUSING ASSEMBLY FOR A CONDITION CAUSING THE LEFT BLEND DOOR TO Turn the ignition off. Inspect the actuator, linkage, and housing assembly for a condition causing the left blend door to seize. Are there any physical or mechanical problems with the door, housing, linkage, or actuator? Yes >> Repair as necessary in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Go To 6 6. CHECK LEFT BLEND DOOR TRAVEL Remove the Left Blend Door Actuator from the A/C Heater Housing Assembly. By hand, attempt to rotate the door in both directions. The door should operate smoothly in both directions over the Does the door operate smoothly in both directions over the entire span of travel? Yes >> Replace the Left Blend Door Actuator in accordance with the Service Information. Then, Go To 7. No >> Repair as necessary in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 24 - 66 HVAC - ELECTRICAL DIAGNOSTICS LX |