Jeep Cherokee (XJ): On-board diagnostics

Next pageEmission system. Malfunction indicator lamp (mil). State display test mode

Emission system OPERATION The Powertrain Control Module (PCM) monitors many different circuits in the fuel injection, ignition, emission and engine systems. If the PCM senses a problem with a moni ...

Other materials:

Description and operation
Charging system DESCRIPTION The charging system consists of:  Generator  Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM)  Ignition switch (refer to Group 8D, Ignition System for information)  Battery (refer to Group 8A, Batte ...