Subaru IMPREZA GD 2007 Series Manual page 3700

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5. Subaru Select Monitor
A: OPERATION
1. GENERAL DESCRIPTION
The on-board diagnosis function of the cruise con-
trol system uses Subaru Select Monitor.
The on-board diagnosis function operates in two
categories, which are used depending on the type
of problems;
1) Cruise Control Cancel Conditions Diagnosis:
(1) This category of diagnosis requires actual
vehicle driving in order to determine the cause,
as when cruise speed is cancelled during driv-
ing although cruise cancel condition is not en-
tered.
(2) Cruise control memory in ECM stores the
cancel condition (Code No.) which occurred
during driving. When there are multiple cancel
conditions (Code No.), they are shown on the
Subaru Select Monitor.
CAUTION:
• The cruise control memory stores not only
the cruise "cancel" which occurred (although
"cancel" operation is not entered by the driver),
but also the "cancel" condition input by the
driver.
• The latest memory content (latest code) is
cleared when ignition switch is turned to OFF.
However, the memory content by the diagnosis
of faulty switches relating to the system and
cruise control is retained as the fault history
(memory code) after the ignition switch is
turned OFF.
2) Real-time Diagnosis:
Real-time diagnosis function is used to determine
whether or not the input signal system is in good or-
der, according to signal emitted from switches, sen-
sors, etc.
(1) Vehicle cannot be driven at cruise speed
when the problem occurs in the cruise control
system or relevant circuits.
(2) Monitor the signal conditions from switches
and sensors.
Subaru Select Monitor
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
2. CRUISE CONTROL CANCEL CONDI-
TIONS DIAGNOSIS
1) Prepare the Subaru Select Monitor kit.
2) Connect the diagnosis cable to the Subaru Se-
lect Monitor.
3) Connect the Subaru Select Monitor to the data
link connector.
(1) Data link connector is located in the lower
portion of the instrument panel (on the driver's
side).
(2) Connect the diagnosis cable to the data link
connector.
4) Start the engine and turn the cruise control main
switch to ON.
5) Connect the Subaru Select Monitor.
6) Select {2. Each System Check} in the «Main
Menu» screen.
On the system selection display screen, select the
{Engine Control System}. Select [OK] after the in-
formation of engine type is displayed.
7) Drive vehicle at 40 km/h (25 MPH) or more and
set the cruise control.
CAUTION:
• When performing diagnosis, observe the le-
gal speed limit on the road.
• DTC will be also displayed when cruise con-
trol is cancelled by the driver's operation. Do
not confuse them.
• Be sure to get an assistant to support the di-
agnosis while driving, and have him/her oper-
ate the select monitor.
CC(ETC)(diag)-9
CC-00134