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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (3.0L Diesel - DTCS P24F3-00 To U3017-00) >> DTC Troubleshooting >> U0121-00-Lost Communication With Abs >> Possible Causes

Possible Causes

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Possible Causes
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BODY CONTROL MODULE (BCM)
ANTILOCK BRAKE SYSTEM MODULE
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