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Home >> Alfa Romeo >> 2017 >> Giulia Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> (Active Cruise Control Module (Acc) - Electrical Diagnostics) >> DTC Troubleshooting >> C1438-86-Gas Pedal Position Signals From Engine Control Module (ECM) - Signal Invalid >> Possible Causes
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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  .