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:
Automatic shutdown (asd) relay
sense-pcm input. Battery voltage-pcm input. Brake switch-pcm input
Automatic shutdown (asd) relay
sense-pcm input
DESCRIPTION
The ASD relay is located in the Power Distribution
Center (PDC). The PDC is located in the engine compartment.
Refer to label on PDC cover for relay location.
OPERATION
A 12 volt signal at this input indicates to the PCM
that the AS ...