User Manual

Problem Possible Cause Solutions
Unable to clear trouble
codes
Vehicle is not responding
to the Clear Codes
command
Sometimes multiple attempts are needed
to clear the codes. You may also try
clearing the codes with the vehicle not
running, and the key in the on position.
Some vehicles don’t respond properly to
the Clear Codes command and the codes
cannot be cleared by the ScanGauge.
Shuts off when engine
automatically turns off in a
Hybrid vehicle
Fuel type not set to
HYBRID
Set the fuel type (TYPE) parameter to
HYBRID in the Basic Setup Parameters
(see page 12), ScanGauge will
automatically set the Sleep Event
parameter to NO COMM.
Poor MPG and Trip Fuel
use accuracy
Some sensor initial
accuracy not good
(especially Diesel)
Use FILLUP procedure to adjust for
sensor errors. (see page 31).
When I scan the vehicle, it
displays NOT READY
The vehicle has not
completed its readiness
Tests since the last time it
was cleared or the battery
was disconnected.
It will continue to say “NOT READY” until
all on board diagnostic tests have been
completed. This does not mean that it is
not ready to be scanned. To get to this
screen the vehicle computer reported that
no Trouble Codes exist.
Some states require that some or all on-
board tests be completed and no Trouble
Codes be present to pass emissions
testing. When the ScanGauge reports No
Codes Found and READY, the vehicle is
ready to pass emissions. Some states
allow some tests to not be completed
and can pass the vehicle even when the
ScanGauge reports NOT READY.
Trip Fuel use is very
inaccurate after using
fill-up adjustment
Error in adjustment
procedure
Recalibrate your ScanGauge. See
CalibratingYour ScanGauge on pages
20 and 21
54 — www.ScanGauge.com