Np242 Wiring Diagram | Wiring Diagram


Purge valve wiring help needed

The Dark Green wire would be the switched voltage from the ignition switch and a yellow wire which comes from the fuse block to supply 12 volts DC on all the time. This (from a quick look anyway) seems to indicate that this diagram: Installing to Points/Amplifier Style Ignition.

The Jeep NP242 transfer case was introduced in the 1987 model year as a replacement for the NP228. The 242 premiered in the XJ Cherokee / Wagoneer and MJ Commache as the SelecTrac option. It was used in the 1991-1998 ZJ Grand Cherokee. The 242 persisted throughout the full run of XJ Cherokees and continued on in the 2002 KJ Liberty.

IIRC some of the 50s models just used a pair of flat female spade connectors on wires, not an L shaped connector that you might expect. If the flasher was pulled out and not replaced you might have a hard time finding the wires. Look to a wiring diagram to find the wire colors.

This write-up is just a simple breakdown of the NV242 transfer case while it's still hooked up to the Jeep. In my situation I had a leak that I wanted to take care of fast. Therfore having to drop the whole case was unnecessary. This write-up is not only for the n00bie who has no clue as to what to do or where to begin, but also for the casual mechanic with a short memory.

The Jeep NP242 transfer case was introduced in the 1987 model year as a replacement for the NP228. The 242 premiered in the XJ Cherokee / Wagoneer and MJ Commache as the SelecTrac option. It was used in the 1991-1998 ZJ Grand Cherokee. The 242 persisted throughout the full run of XJ Cherokees and continued on in the 2002 KJ Liberty.

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