Dodge Durango

 Service Manual

Emission Control Systems » On-board diagnostics
State display test mode

OPERATION

The switch inputs to the Powertrain Control Module (PCM) have two recognized states; HIGH and LOW. For this reason, the PCM cannot recognize the difference between a selected switch position versus an open circuit, a short circuit, or a defective switch.

If the State Display screen shows the change from HIGH to LOW or LOW to HIGH, assume the entire switch circuit to the PCM functions properly. Connect the DRB scan tool to the data link connector and access the state display screen. Then access either State Display Inputs and Outputs or State Display Sensors.

Emission system

Malfunction indicator lamp (mil)

State display test mode

Circuit actuation test mode

Diagnostic trouble codes

Diagnostic trouble code descriptions

Task manager-gasoline powered engines only

Monitored systems

Trip definition

Component monitors

Non-monitored circuits

High and low limits