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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Body Control Module (BCM) - DTCS B1830-11 To U1433-24) >> Diagnosis And Testing >> U0121-00-Lost Communication With Anti-Lock Brake System (Abs) Control Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
CAN C BUS (-) CIRCUIT SHORTED TO GROUND
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BCM NOT CONFIGURED CORRECTLY
ABS POWER AND GROUND
ANTI-LOCK BRAKE MODULE (ABS)
MODULE THAT SET THIS DTC