LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Fiat >> 2021 >> 500X Pop >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> (Active Cruise Control (Acc) Module - Electrical Diagnostics) >> DTC Troubleshooting >> C1407-86-Acknowledge Signal Fail From Brake System Module - Signal Invalid >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE

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