Jeep Cherokee (XJ): On-board diagnostics
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Emission control systems > On-board diagnostics
- Emission system. Malfunction indicator lamp (mil). State display test mode
- Circuit actuation test mode. Diagnostic trouble codes. Diagnostic trouble code descriptions
- Task manager
- Monitored systems
- Trip definition. Component monitors. Non-monitored circuits
- High and low limits. Load value
Emission 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:
Dual function high pressure switch
(4.0 L). Evaporator coil. Fixed orifice tube
Dual function high pressure switch
(4.0 L)
DESCRIPTION
The Dual Function High Pressure Switch controls
both A/C clutch engagement/disengagement, and electric
cooling fan operations. The switch is located on
the discharge line near the compressor. The switch is
screwed onto a fitting that conta ...