Missing Speed Difference Message

Test 1 - 3:

Test 4:

SYMPTOM
MISSING SPEED DIFFERENCE MESSAGE

WHEN MONITORED
When the Transfer Case Control Module has received a request to shift while the vehicle is greater than 0 MPH.

SET CONDITION
This DTC will set when the Transfer Case Control Module stops receiving the ABS/RWAL message for 5 seconds.

POSSIBLE CAUSES
- ABS/RWAL DTCs present
- Communication DTCs present
- Transfer case control module
- ABS/RWAL module