Additional Tests
SYSTEM/ACTUATOR TESTS
For technical questions, please call 1-888-866-5797.
59
O2 Test
The O2 Test function lets you perform a check of the vehicle’s oxygen
sensors.
1.
Select
O2 Test
in the Active Test menu, then press
ENTER
.
n
A series of “informational/instructional” screens display. Choose
Continue
as necessary to scroll the screens. Prepare the vehicle
for test as directed:
- Make sure the battery is fully charged.
- Make sure all vehicle electrical devices are OFF.
- Make sure the steering wheel is in the center position, and DO
NOT move during testing.
- Turn the ignition on. DO NOT start the engine at this time.
2.
Choose
Continue
to proceed.
n
An “instructional” screen displays.
3.
Start and idle the engine.
If DTCs are present in the vehicle’s computer, an “advisory”
screen displays. Clear DTCs before proceeding.
n
The Throttle Snap screen displays.
4.
Switch engine speed from 1000 RPM to 3000 RPM three times. The
Snap Counter increments for each throttle snap.
n
An “instructional” screen displays. Perform the following:
- Press and hold the accelerator to maintain engine speed
between 2000-3000 RPM.
- Hold the accelerator steady for 5
seconds.
5.
A “status” screen displays while the test
is in progress.
n
The screen shows the
Elapsed
Time
,
Engine Speed
and
O2S
(oxygen sensor) voltage.
6.
Hold the accelerator steady for 30 seconds.
n
A “results” screen displays when testing is complete.
n
The screen shows the maximum and
minimum
O2
sensor
voltage
(
VO2MAX
,
VO2MIN
) and switching
voltage count (
CLH
).
7.
Choose
Back
to return to the Active Test
menu.
EGR Test
Содержание 56218
Страница 1: ......
Страница 101: ...56218 2 1 ...
