Commercial Service Tools

Precautions for Suspension
Symptom diagnosisThe oil pressure warning lamp does not turn off
Description
The oil pressure warning lamp remains illuminated while the engine is running
(normal oil pressure).
Diagnosis procedure
1.Check combination meter input signal
Start the engine and select METER/M&A on CONSULT.
Observe oil w/l data monitor and the operation of the oil pres ...
Intermittent Incident
DESCRIPTION
Sometimes the symptom is not present when the vehicle is brought in for
service. If possible, re-create the
conditions present at the time of the incident. Doing so may help avoid a No
Trouble Found Diagnosis. The fol-
lowing section illustrates ways to simulate the conditions/env ...
P0506 ISC System
Description
The ECM controls the engine idle speed to a specified level through the fine
adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator.
The operating of the throttle valve is
varied to allow for optimum control of the engine ...