Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Alfa Romeo >> 2017 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> (Active Cruise Control Module (Acc) - Electrical Diagnostics) >> DTC Troubleshooting >> C1439-86-Engine Torque Signals From Engine Control Module (ECM) - Signal Invalid >> Possible Causes

Possible Causes

Possible Causes
DTCS SET IN THE POWERTRAIN CONTROL MODULE (PCM)
POWERTRAIN CONTROL MODULE (PCM)
ADAPTIVE CRUISE CONTROL (ACC) MODULE

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

scientia non olet · About Mike's Workshop Manuals