LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1314 (Antilock Brake System (Abs) - DTCS C0010-01 To C1260-86) >> DTC Troubleshooting >> C1221-86-Pcm Bus Signal Invalid >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
POWERTRAIN CONTROL MODULE POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
POWERTRAIN CONTROL MODULE (PCM)
MODULE THAT SET THIS DTC

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .