Mazda 6. Manual - part 29
F–52
ON-BOARD DIAGNOSTIC
SIMULATION TEST
A6E397018881T06
•
The simulation test items for the fuel and emission control systems are as shown in the table below.
Simulation item table
×
: Applied
—: Not applied
*
1
: With immobilizer system
*
2
: Without immobilizer system
End Of Sie
KOEO/KOER SELF-TEST
A6E397018881T07
•
The self-test function consists of the KOEO (Key On, Engine Off) self-test, performed when the ignition switch
is at ON, and the KOER (Key On, Engine Running) self-test, performed when idling. If an abnormality is
detected as either self-test is executed, a is displayed on the WDS or equivalent. Using the self-test function,
the present malfunction or a successful repair is readily confirmed. Refer to the self-test function table for the
corresponding DTCs.
KOEO (Key ON, Engine Off) self-test
— The KOEO self-test is a powertrain control system self-diagnosis, performed when the ignition switch is at
ON and the engine is stopped. A KOEO self-test begins when the connected WDS or equivalent sends an
execute command to the PCM.
— As the KOEO self-test is performed, the PCM performs inspection for the set DTCs and if a malfunction is
detected the DTC is displayed on the WDS or equivalent.
KOER (Key ON, Engine Running) self-test
— The KOER self-test is a powertrain control system self-diagnosis, performed when the ignition switch is at
ON and the engine is idling. A KOER self-test begins when the connected WDS or equivalent sends an
execute command to the PCM.
— As the KOER self-test is performed, the PCM performs inspection for the set DTCs and if a malfunction is
detected the DTC is displayed on the WDS or equivalent.
Simulation
item
Applicable component
Operation
Test condition
PCM
terminal
IG ON
Idle
ACCS
A/C relay
ON or OFF
×
×
4O
ALTF
Generator field coil control duty
value
ON or OFF
—
×
1AD
ARPMDES
Desired RPM
×
×
—
EVAPCP
Purge solenoid valve
For purge solenoid valve:
Actuated by any duty value (0—
100%)
×
×
4U
FAN1
Fan1 control signal
ON or OFF
×
×
4L
FAN2
Fan2 control signal
ON or OFF
×
×
4F
FAN3
Fan3 control signal
ON or OFF
×
×
4B
FP
Fuel pump relay
ON or OFF
×
×
4P
*1
,4Q
*2
FUELPW1
Fuel injection duration
Actuated +50%— -50% fuel
injection time
—
×
4W,4Z,
4AA,4AD
GENVDSD
Generator voltage desired
—
×
—
HTR11
Front heated exhaust gas oxygen
sensor heater
ON or OFF
×
×
4A
HTR12
Rear heated exhaust gas oxygen
sensor heater
ON or OFF
×
×
4D
IAC
Idle air control
Actuated by any duty value (0—
100%)
×
×
4G,4J
IMRC
Variable tumble control solenoid
control signal in PCM
ON or OFF
×
×
4T
IMTV
Variable intake-air system (VIS)
control solenoid control signal in
PCM
ON or OFF
×
×
4R
INJ#1
Fuel injector (Cylinder No.1)
ON or OFF
—
×
4Z
INJ#2
Fuel injector (Cylinder No.2)
ON or OFF
—
×
4W
INJ#3
Fuel injector (Cylinder No.3)
ON or OFF
—
×
4AD
INJ#4
Fuel injector (Cylinder No.4)
ON or OFF
—
×
4AA
SEGRP
EGR valve (stepping motor)
Actuated by any stepping value
(0—60 steps)
×
×
4E,4H,
4K,4N
TEST
—
ON or OFF
×
×
—