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Home >> Jeep >> 2021 >> Cherokee High Altitude, Automatic T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P152C To P2172 >> DTC Troubleshooting >> P2096-Downstream Fuel Trim System 1 Lean >> Possible Causes

Possible Causes

Possible Causes
EXHAUST SYSTEM LEAK
UPSTREAM O2 SENSOR WIRING ISSUE
UPSTREAM O2 SENSOR
DOWNSTREAM O2 SENSOR WIRING ISSUE
DOWNSTREAM O2 SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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

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