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Home >> Dodge and Ram >> 2023 >> Durango GT, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (6.2L - DTCS P2628 To U0416) >> DTC Troubleshooting >> U02A9-Lost Communication With Charge Air Cooler Coolant Pump >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
CHARGE AIR COOLER COOLANT PUMP FUSED B+ CIRCUIT OPEN
CHARGE AIR COOLER COOLANT PUMP FUSED B+ CIRCUIT SHORTED TO GROUND
ASD RELAY OUTPUT CIRCUIT OPEN
ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND
CHARGE AIR COOLER PUMP GROUND CIRCUIT OPEN
LIN BUS CIRCUIT OPEN/HIGH RESISTANCE
LIN BUS CIRCUIT SHORTED TO GROUND
CHARGE AIR COOLER COOLANT PUMP
POWERTRAIN CONTROL MODULE

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