The Airconditioner Control Module sets DTC B1284 when the feedback signal of auto defogger actuator has been detected 4.9V for 0.3 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the Voltage | 1. Short to battery in signal(Feedback signal) circuit 2. Faulty auto defogger actuator 3. Faulty A/C control Module |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Feedback signal has been detected over 4.9V for 0.1 seconds | |
Failsafe |
•
If selected Mode was VENT, it is moved and fixed at Close position
•
If the others mode, it is moved and fixed at Open position |
