A/C Control Blend Door Input Open/Shorted to Ground (MTC)

Test 1 - 2:

Test 3 - 5:

SYMPTOM
A/C CONTROL BLEND DOOR INPUT OPEN OR SHORTED TO GROUND (MANUAL A/C)

WHEN MONITORED
With the ignition on.

SET CONDITION
The BCM detects an abnormally low voltage (below 1.0 volts) on its blend request input.

POSSIBLE CAUSES
- Fused ignition switch output circuit open
- Temperature select circuit shorted to ground
- Temperature select circuit shorted to sensor ground
- Temperature select circuit open
- Control head - temp select open/short
- Body control module - temp select open/short