Emergency Jump Starting

Emergency Jump Starting - Gen 5 DD15 - Ops - #7628

The engine's electronic system operates on 12 volts DC. If a Detroit™ Gen 5 Heavy Duty engine requires emergency jump starting, do not exceed 16 volts DC as this may damage the MCM and or other electrical equipment.

Before attempting to jump start the engine, the jumper cables must be connected using the sequence of first, positive-to-positive, and then last, negative-to-chassis or suitable ground. Reversing battery polarity may damage the electrical equipment. Failure to connect jumper cables in the proper sequence can result in alternator and/or equipment damage.

Note:
Parent topic: Vehicle Emergency Operation
Document Number: 0000009729
Manual Publication Date: 2025-08-26
Topic Publication Date: 2026-02-05