LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Jeep
>>
2007
>>
Compass Limited, FWD, Standard
>>
Repair and Diagnosis (Single Page)
>>
Accessories & Equipment
>>
Communication Devices
>>
Electronic Control Modules - Electrical Diagnostics
>>
Electronic Control Modules - Electrical Diagnostics
>>
DTC Troubleshooting
>>
U0121-Lost Communication With Anti-Lock Brake Module
>>
Set Conditions
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Set Conditions
Set Condition:
Bus messages not received from the Antilock Brake Module for approximately 500 ms.