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
×
×
—
ON-BOARD DIAGNOSTIC
F–53
F
KOEO/KOER self-test function table
×
: Applicable
—: Not applicable
DTC No.
Condition
KOEO
KOER
P0010
CMP actuator circuit malfunction
×
×
P0011
CMP timing over advanced
—
×
P0012
CMP timing over retarded
—
×
P0031
Front HO2S heater circuit low
×
×
P0032
Front HO2S heater circuit high
×
×
P0037
Rear HO2S heater circuit low
×
×
P0038
Rear HO2S heater circuit high
×
×
P0101
MAF sensor inconsistent with TP sensor
—
—
P0102
MAF circuit low input
×
×
P0103
MAF circuit high input
×
×
P0107
MAP sensor circuit low input
×
×
P0108
MAP sensor circuit high input
×
×
P0111
IAT circuit performance problem
—
—
P0112
IAT circuit low input
×
×
P0113
IAT circuit high input
×
×
P0117
ECT circuit low input
×
×
P0118
ECT circuit high input
×
×
P0121
Throttle position stuck close
—
—
P0122
TP circuit low input
×
×
P0123
TP circuit high input
×
×
P0125
Excessive time to enter closed loop fuel control
—
—
P0131
Front HO2S no inversion (low stuck)
—
—
P0132
Front HO2S no inversion (high stuck)
—
×
P0133
Front HO2S circuit malfunction
—
—
P0134
Front HO2S circuit no activity detected
—
×
P0138
Rear HO2S circuit high input
—
—
P0140
Rear HO2S circuit no activity detected
—
×
P0171
Fuel trim system too lean
—
×
P0172
Fuel trim system too rich
—
×
P0300
Random misfire detected
—
—
P0301
Cylinder No.1 misfire detected
—
—
P0302
Cylinder No.2 misfire detected
—
—
P0303
Cylinder No.3 misfire detected
—
—
P0304
Cylinder No.4 misfire detected
—
—
P0327
Knock sensor circuit low input
×
×
P0328
Knock sensor circuit high input
×
×
P0335
CKP sensor circuit malfunction
—
—
P0340
CMP sensor circuit malfunction
—
—
P0403
EGR valve motor coils open or short
×
×
P0420
Catalyst system efficiency below threshold
—
—
P0443
Evaporative emission control system purge control valve circuit malfunction
—
×
P0480
Fan relay control circuit malfunction
×
×
P0500
Vehicle speed sensor (VSS) circuit malfunction
—
—
P0505
Idle control system malfunction
—
×
P0506
Idle control system RPM lower than expected
—
—
P0507
Idle control system RPM higher than expected
—
—
P0511
IAC valve circuit malfunction
×
×
P0550
PSP switch circuit malfunction
—
—
P0602
PCM programming error
×
×
P0610
Control module vehicle options error
×
×
P0661
VIS control circuit low input
×
×
P0662
VIS control circuit high input
×
×
F–54
ON-BOARD DIAGNOSTIC
End Of Sie
P0703
Brake switch input malfunction
—
—
P0704
Clutch switch input malfunction
—
—
P0850
Neutral switch input malfunction
—
—
P1410
Variable air duct valve circuit malfunction
×
×
P1562
PCM +BB voltage low
×
×
P2006
Variable tumble control system shutter valve stuck close
—
—
P2009
Variable tumble control solenoid valve circuit low input
×
×
P2010
Variable tumble control solenoid valve circuit high input
×
×
P2228
BARO sensor circuit low input
×
×
P2229
BARO sensor circuit high input
×
×
P2502
Generator output voltage signal no electricity
—
×
P2503
Battery overcharge
—
×
P2504
Generator terminal B circuit open
—
×
U0073
CAN bus off
×
×
U0121
PCM cannot receive any signals from ABS, ABS/TCS or DSC HU/CM
×
×
U0155
PCM cannot receive any signals from combination meter
×
×
DTC No.
Condition
KOEO
KOER
G–1
G
G
ENGINE ELECTRICAL SYSTEM
ABBREVIATIONS . . . . . . . . . . . . . G-2
ABBREVIATIONS . . . . . . . . . . . ... G-2
OUTLINE . . . . . . . . . . . . . . . ... G-2
CHARGING SYSTEM . . . . . . . . . . . G-4
GENERATOR . . . . . . . . . . . . . . G-4
IGNITION SYSTEM . . . . . . . . . . . ... G-5
IGNITION COIL. . . . . . . . . . . . ... G-5
SPARK PLUG . . . . . . . . . . . . . . G-6
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