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Home >> Jeep >> 2022 >> Compass High Altitude >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P1523 To P1D67 >> DTC Troubleshooting >> P1609-Internal Control Module Engine Oil Temperature Performance >> Possible Causes
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Possible Causes

Possible Causes
ECT SENSOR, WIRING, OR CONNECTORS
MAP SENSOR, WIRING, OR CONNECTORS
FUEL DELIVERY SYSTEM
ENGINE MECHANICAL SYSTEM
IGNITION SYSTEM
POWERTRAIN CONTROL MODULE (PCM)

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

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