LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2021 >> Compass Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P1048 To P1D68 >> DTC Troubleshooting >> P1609-Internal Control Module Engine Oil Temperature Performance >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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  .