Ignition "OFF"
Disconnect the connector of temperature control actuator.
Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 4.
Verify that the temperature control actuator operates to the cool position when connecting in the reverse.
Check the voltage between terminals 6 and 7(Drive).
Door position | Voltage(6-7) | Error detecting |
Max. cooling | 0.45 ± 0.15V | Low voltage :0.1V or less |
Max. heating | 4.55 ± 0.15V | High voltage :4.9V or more |
Check the voltage between terminals 5 and 6 (Passenger).
Door position | Voltage(5-6) | Error detecting |
Max. cooling | 0.45 ± 0.15V | Low voltage :0.1V or less |
Max. heating | 4.55 ± 0.15V | High voltage :4.9V or more |
It will feedback current position of actuator to controls.
If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.
If the problem is corrected, replace the temperature control actuator.
