STEP
INSPECTION
ACTION
1
• Inspect cabin temperature sensor. (See CABIN TEMPERATURE SENSOR INSPECTION.)
• Is it okay?
Yes
Go to the next step.
No
Replace cabin temperature sensor. (See CABIN TEMPERATURE SENSOR REMOVAL/INSTALLATION.)
2
• Disconnect front climate control unit connector (16-pin) and cabin temperature sensor connector.
• Is there open circuit between the following terminals of front climate control unit connector (16-pin) and cabin temperature sensor connector?
-
― 2K—B― 2P—A
Yes
Repair wiring harness.
No
Go to the next step.
3
• Is there short circuit to ground between terminal 2K of front climate control unit connector (16-pin) and B of cabin temperature sensor connector?
Yes
Repair wiring harness.
No
Connect front climate control unit connector, then go to the next step.
4
• Turn the ignition switch to ON position.
• Measure voltage at terminal the following terminal 2K of front climate control unit connector (16-pin).
• Is voltage approx. 5V?
Yes
This system is normal at present. (Erase the past failure from memory.)
No
inspect the connection of the front climate control unit connector.
