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Home >> Dodge and Ram >> 2020 >> Durango R/T, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (3.6L - DTCS P2166 To U01B0) >> DTC Troubleshooting >> P2681-Engine Coolant Bypass Valve Control Circuit Open >> Possible Causes

Possible Causes

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Possible Causes
COOLANT BYPASS VALVE CONTROL CIRCUIT OPEN/HIGH RESISTANCE
COOLANT BYPASS VALVE GROUND CIRCUIT OPEN
COOLANT BYPASS VALVE
POWERTRAIN CONTROL MODULE (PCM)

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