No Temperature Control With Front Climate Control Unit: Notes

DESCRIPTION

Temperature does not change when operating temperature control dial
Malfunction in A/C unit and/or front climate control unit air mix system
Malfunction in driver and/or passenger side front air mix actuator or related wiring harness

POSSIBLE CAUSE

ROOM 25 A fuse malfunction
INTERIOR 10 A fuse malfunction
Open or short circuit in wiring harness between fuse block and front climate control unit
Open or short circuit in wiring harness between front climate control unit and each front actuator/sensor
Open or short circuit in wiring harness between front climate control unit and front air mix actuator position sensor
Front climate control unit connector malfunction or poor connection
Front air mix actuator connector malfunction or poor connection
Front air mix actuator malfunction
Front air mix link malfunction
Front air mix door malfunction
Front climate control unit malfunction
Heater hose malfunction

When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, inspect to make sure connectors, terminals and wiring harness are connected correctly and undamaged.