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Home >> Jeep >> 2012 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Active Cruise Control (Acc) Module - Electrical Diagnostics >> DTC Troubleshooting >> U0121-00-Lost Communication With Anti-Lock Brake Module >> Set Condition:

Set Condition:

Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.