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:

Yellow Telltale Indicator Lights
Rear Fog Light Indicator Yellow Telltale Light What It Means Rear Fog Light IndicatorThis indicator will illuminate when the rear fog lights are on. Engine Check/Malfunction Indicator Light (MIL) Yellow Telltale Light What It Means Engi ...