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Home >> Jeep >> 2008 >> Compass Limited, AWD, Automatic CVT >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Anti-Lock Brake System - Electrical Diagnostics) >> DTC Troubleshooting >> C121D-Brake Pressure Sensor Circuit >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Jeep Patriot and 2009 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
AIR IN BRAKE SYSTEM/WORN MECHANICAL COMPONENTS
ECU INTERNAL FAILURE
HCU INTERNAL FAILURE