Rear Keyboard Fault (Active)

Test 1 - Test 2:

Test 3 - Test 6:

Test 7 - Test 11:

Test 12 - Test 14:

SYMPTOM
REAR KEYBOARD FAULT (ACTIVE)

WHEN MONITORED
With the ignition on and the IOD fuse installed.

SET CONDITION
This DTC will set if there is an internal fault in the ATC head.

POSSIBLE CAUSES
- BCM
- Ignition switch (run) circuit open
- KDB clock circuit shorted to voltage
- KDB data circuit shorted to ground
- KDB data circuit shorted to voltage
- KDB clock circuit shorted to ground
- KDB data circuit open
- ATC- KDB data circuit fault
- KDB clock circuit open
- ATC - KDB clock circuit fault
- Rear ATC switch ground circuit open
- Rear automatic temperature control switch