DTC B1C1A:11, B1C1A:13, B1C1B:11, B1C1B:13

id070200817500

DTC B1C1A:11, B1C1A:13, B1C1B:11, B1C1B:13	Air mix actuator (potentiometer) system
POSSIBLE CAUSE	•  Air mix actuator malfunction •  Open circuit in wiring harness between climate control unit and air mix actuator •  Short circuit in wiring harness between the following terminals of the climate control unit and air mix actuator ―  2C—F (Driver-side) ―  2A—F (Passenger-side)

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	•  Inspect the air mix actuator. (See AIR MIX ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER].) •  Is it normal?	Yes	Go to the next step.
		No	Replace the air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
2	•  Disconnect the climate control unit connector and the air mix actuator connector. •  Is there an open circuit in the wiring harness between the following terminals of the climate control unit and the air mix actuator? Driver-side (L.H.D.) ―  2K—G ―  2C—F ―  2L—E Passenger-side (L.H.D.) ―  2K—E ―  2A—F ―  2L—G Driver-side (R.H.D.) ―  2K—E ―  2C—F ―  2L—G Passenger-side (R.H.D.) ―  2K—G ―  2A—F ―  2L—E	Yes	Repair the wiring harness.
		No	Go to the next step.
3	•  Is there a short circuit to ground in the wiring harness between the following terminals of the climate control unit terminal and air mix actuator terminal? ―  2C—F (Driver-side) ―  2A—F (Passenger-side)	Yes	Repair the wiring harness.
		No	The system is normal at present. (Clear the past malfunction from the memory.)