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B1053–REAR BLEND DOOR CONTROL CIRCUIT LOW (MTC) (CONTINUED) 4. CHECK (C54) REAR BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO (C154) REAR COMMON DOOR Disconnect the Rear Blend Door Actuator harness connector. Measure the resistance between the (C54) Rear Blend Door Driver cir- Is the resistance below 10k ohms? Yes >> Repair the (C54) Rear Blend Door Driver circuit for a short to the (C154) Rear Common Door Driver circuit. Perform BODY VERIFICATION TEST - VER 1. No >> Replace the Rear Blend Door Actuator in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. 5. RUN THE ACTUATOR DTC DETECTION TEST Reconnect the A/C Heater Control C1 harness connector. Turn the ignition on. With the scan tool, erase HVAC DTCs. Turn the ignition off, wait 10 seconds, and then turn the ignition on. With the scan tool, select System Tests and then select Actuator DTC Detection. When the test is complete, select Does the scan tool only display: B1053–REAR BLEND DOOR CONTROL CIRCUIT LOW? Yes >> Replace the A/C Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. No, Other DTC(s) Displayed Diagnose and repair the other DTC(s). If multiple DTCs are present, beginning with the common cir- No, And No Other DTCs Displayed Using the wiring diagram as a guide, inspect the wiring and connectors for conditions causing an inter- Perform BODY VERIFICATION TEST - VER 1. HB HVAC - ELECTRICAL DIAGNOSTICS 24 - 233 |