A/C Control EBL Switch Failure (MTC)

Test 1:

Test 2 - 7:

Test 8:

SYMPTOM
A/C CONTROL EBL SWITCH FAILURE (MAN A/C)

TEST NOTE
This symptom is diagnosed using the test A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C).

WHEN MONITORED
With ignition ON

SET CONDITION
When the BCM detects the EBL switch stuck in the depressed position for more than 30 seconds.

POSSIBLE CAUSES
- Control head switches okay
- Mode switch MUX circuit short to ground
- Mode switch MUX circuit short to sensor ground
- Control head - button sticks
- control head - EBL short to ground
- Control head - mode MUX incorrect
- Control head - open switch
- Body control module - mode switch MUX short to ground