The Duct Sensor has a function to measure the temperature of HAVC. The Air conditioner Control Module gets the feedback from it and uses to make a temperature control promptly and accurately.
The Air conditioner Control Module sets DTC B1287 if Duct sensor(Vent) signal voltage has been detected over 4.9V for 0.3 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage check |
•
Poor Connection in harness.
•
Open in signal circuit.
•
Shrot to battery in signal circuit
•
Faulty Duct sensor.
•
Faulty air condtioner control Module. |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Duct Temperature sensor has been detected over 4.9V for 0.3 seconds | |
Failsafe |
•
- |
Temperature(℃/℉) | Resistance(㏀) | Temperature(℃/℉) | Resistance(㏀) |
-40/-40 | 990 | 25/77 | 30 |
-20/-4 | 290 | 85/185 | 3.2 |
0/32 | 97 | - | - |
