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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Body Control Module (BCM) - DTCS B2100-12 To U0184-87) >> DTC Troubleshooting >> B2121-14-Ignition Run Control 1 - Circuit Short To Ground Or Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
IGNITION RUN RELAY CONTROL CIRCUIT OPEN
IGNITION RUN RELAY CONTROL CIRCUIT SHORTED TO GROUND
RUN 1 RELAY
POWER DISTRIBUTION CENTER (PDC) ASSEMBLY
BODY CONTROL MODULE (BCM)
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