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Home >> Jeep >> 2017 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P2100 To U0121 >> DTC Troubleshooting >> P257D-Engine Hood Switch Circuit Performance >> Possible Causes

Possible Causes

Possible Causes
HOOD AJAR SWITCH SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
HOOD AJAR SWITCH 1 (HOOD LATCH)
BODY CONTROL MODULE

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

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