DTC 19

id070200803200

DTC 19

Driver-side front air mix actuator (potentiometer) (past)

POSSIBLE CAUSE

•  Driver-side front air mix actuator malfunction

•  Open circuit between driver-side front air mix actuator and front climate control unit

•  Short circuit between driver-side front air mix actuator (terminal E) and front climate control unit (terminal 2F: 16-pin)

DTC 19	Driver-side front air mix actuator (potentiometer) (past)
POSSIBLE CAUSE	• Driver-side front air mix actuator malfunction • Open circuit between driver-side front air mix actuator and front climate control unit • Short circuit between driver-side front air mix actuator (terminal E) and front climate control unit (terminal 2F: 16-pin)

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	• Inspect driver-side front air mix actuator. (See FRONT AIR MIX ACTUATOR INSPECTION.) • Is it okay?	Yes	Go to the next step.
1		No	Replace driver-side front air mix actuator. (See FRONT AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
2	• Disconnect front climate control unit connector (16-pin) and driver-side front air mix actuator connector. • Is there open circuit between following terminals of front climate control unit connector (16-pin) and driver-side front air mix actuator connector? ― 2F—E ― 2B—A ― 2P—C	Yes	Repair wiring harness.
2		No	Go to the next step.
3	• Is there short circuit to ground between terminal 2F of front climate control unit connector (16-pin) and terminal E of driver-side front air mix actuator connector?	Yes	Repair wiring harness.
3		No	This system is normal at present. (Erase the past failure from memory.)