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glossary of tipm terms

auto stop-go

The Auto Stop-Go feature is a fuel-saving mechanism that shuts off the engine when the vehicle is at idle, such as at a traffic light. The engine is automatically restarted as soon as the driver takes his or her foot off the brake pedal. The system has a bat-tery pack, and uses a modified alternator that generates current and also works as a starter to restart the engine. If equipped, the TIPM is specially designed to support this feature.

cab and chassis

“Chassis Cab” is the official designation of trucks Chrysler sells for further customization to particular commercial needs. The add-ons may be ordered from Chrysler or installed by a 3rd party “Upfitter” Provider. RAM 5500, 4500, and sometimes 3500’s are marketed this way

fcm

While the IPM houses all the fuses and relays, the Front Control Module (FCM) handles the logic in directing electrical power throughout the vehicle. FCMs fail far less frequently than IPMs, so it is a safe bet to address the IPM first.

fuse

A fuse’s sole purpose in life is to fail. Put into electrical circuits, it is designed to burn out when an abnormally high level of cur-rent begins passing through the system due to a short or other problem. It protects downstream electronics from damage (and in extreme cases, from vehicle fires)

hid headlamps

HID Headlamps HID, or High Intensity Discharge lights utilize Xenon gas to produce a very bright, bluish-white light, while LEDs produce a purer white light, and traditional Halogens a more yellowish light. The current draw characteristics of HIDs are significantly different than Halogen or LEDs, demanding special consideration in the TIPM design.

ipm

IPM stands for Integrated Power Module. Only after 2006 did Chrysler add “T” for “Totally” and begin referring to the device as a TIPM.

oval plugs

The two center-most plugs on IPMs prior to mid-2003 have an oval shape making them completely incompatible with later, but identically-featured, vehicles.

part number

TIPM Part Numbers are in the format, nnnnnnnnAA, (8 numeric digits followed by 2 alphabet characters) and can be found printed on a sticker affixed to the side of the TIPM. The two trailing alpha characters merely refer to the date of manufacture and are interchangeable. Your TIPM may or may not include a leading zero, and may be preceded by a “P” or “P/N” which is merely a field heading and is not integral to the part number.