DTC 31, 41: Air Mix Damper Position Sensor Circuit; Air Mix Damper Control Servo Motor Circuit (Passenger Side): Description

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: TP Terminal Voltage & Damper Opening Angle

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

This sensor detects the position of the front air mix damper and sends the appropriate signals to the A/C amplifier.

The position sensor is built into the front air mix servomotor.

DETECTION ITEM AND TROUBLE AREA

DTC No.	Detection Item	Trouble Area
31	Short to ground or to power source circuit in front air mix damper position sensor circuit	Front air mix damper position sensor Harness or connector between front air mix damper position sensor and A/C amplifier A/C amplifier
41	Front air mix damper position sensor value does not change even if A/C amplifier operates front air mix damper control servomotor