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7B-35 Air Conditioning System: DTC B1511: Temperature Control Actuator (Position Sensor) and/or Its Circuit Malfunction S5JB0A7204036 Wiring Diagram DTC Detecting Condition and Trouble Area DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF. 5 Sunload sensor signal circuit check switch turned OFF. 2) Measure resistance between “YEL” wire terminal of sunload sensor connector and vehicle body ground. Is resistance infinity? Go to Step 6. “YEL” wire shorted to 6 Sunload sensor signal circuit check control module connector and “YEL” wire terminal of Is resistance below 5 Ω ? Go to Step 7. “YEL” wire open or high 7 Sunload sensor signal circuit check sensor connector and vehicle body ground with ignition Is voltage 0 V? Go to Step 8. “YEL” wire shorted to 8 Sunload sensor check Is it in good condition? HVAC control module Sunload sensor faulty. Step Action Yes No 12V 5V M G52-21 G52-27 G52-28 GRY GRY/BLU WHT/RED G52-13 G52-14 5V RED/WHT BLK/RED [A] 2 3 4 1 13 14 21 27 28 I5JB0A720023-02 [A]: HVAC control module connector “G52” (harness side view) 3. To other actuators 1. HVAC control module 4. To other sensors 2. Temperature control actuator DTC Detecting Condition Trouble Area Temperature control actuator position sensor signal voltage is more than or • Temperature control actuator circuit |