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Home >> Jeep >> 2007 >> Grand Cherokee Laredo, 3.0 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Ignition System - Electrical Diagnostics) >> DTC Troubleshooting >> B2185-Ignition Unlock Run/Start Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes 
(F1) FUSED IGNITION SWITCH OUTPUT (RUN START) CIRCUIT OPEN
(F1) FUSED IGNITION SWITCH OUTPUT (RUN START) CIRCUIT SHORTED TO VOLTAGE
SHIFTER LEVER ASSEMBLY (3.7L ONLY)
POWERTRAIN CONTROL MODULE (EXCEPT 3.7L)
FRONT CONTROL MODULE

The (F942) Fused Ignition Switch Output circuit supplies the FCM with battery power. The FCM processes the input and sends it out as the (F1) Fused Ignition Switch Output circuit to the Shift Lever assembly (3.7L) or the PCM (except 3.7L).