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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (2.0L - DTCS B1810 To B25C8) >> DTC Troubleshooting >> B2101-Ignition Run/Start Input Low >> Possible Causes

Possible Causes

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Possible Causes
FUSED IGNITION SWITCH OUTPUT CIRCUIT FUSE
RUN/START RELAY
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

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