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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Wiring Systems And Power Management - Service, Troubleshooting & Diagnosis) >> Power Mode Mismatch >> Conditions for Setting the DTC >> B1440

Conditions for Setting the DTC: B1440

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BCM senses an open or short to voltage on the off/run/crank voltage circuit when both ignition accessory/run and ignition run/crank parameters are active.

BCM senses an open on the B+ circuit to the ignition switch while the engine is running. An open on the B+ circuit can be caused by a short to ground on any of the circuits listed below:

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