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Home >> Alfa Romeo >> 2017 >> 4C Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Body Control Module (BCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U1701-86 Pcm-ECM (Engine Control Module Node)-Signal Invalid >> Possible Causes
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Possible Causes

Possible Causes
FAULTY CAN CONNECTION(S)
LOOSE POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PIN(S)
LOOSE BODY CONTROL MODULE (BCM) CONNECTOR PIN(S)
INCORRECT POWERTRAIN CONTROL MODULE (PCM) POWER SUPPLY
INCORRECT BODY CONTROL MODULE (BCM) POWER SUPPLY
POWERTRAIN CONTROL MODULE (PCM)
BODY CONTROL MODULE (BCM)