Mazda X-5. Manual — part 6
ON-BOARD DIAGNOSTIC
01–02–1
01–02
01–02
ON-BOARD DIAGNOSTIC
ON-BOARD DIAGNOSTIC OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–02–1
Features . . . . . . . . . . . . . . . . . . . . . . . . 01–02–1
Block Diagram . . . . . . . . . . . . . . . . . . . 01–02–1
DIAGNOSTIC SYSTEM
WIRING DIAGRAM [LF] . . . . . . . . . . . . 01–02–2
DIAGNOSTIC TEST MODE [LF] . . . . . . . 01–02–4
Sending Diagnostic Data . . . . . . . . . . . 01–02–4
Sending Freeze Frame Data . . . . . . . . 01–02–6
Sending Emission-related
Malfunction Code . . . . . . . . . . . . . . . . 01–02–6
Sending Intermittent Monitoring
System Test Results . . . . . . . . . . . . . 01–02–10
Sending Continuous Monitoring
System Test Results . . . . . . . . . . . . . . 01–02–10
DLC-2 Outline . . . . . . . . . . . . . . . . . . . . 01–02–10
DTC DETECTION LOGIC AND
CONDITIONS [LF] . . . . . . . . . . . . . . . . . 01–02–11
KOEO/KOER SELF-TEST [LF] . . . . . . . . 01–02–20
KOEO (Key ON, Engine Off)
Self-test . . . . . . . . . . . . . . . . . . . . . . . . 01–02–20
KOER (Key ON, Engine Running)
Self-test . . . . . . . . . . . . . . . . . . . . . . . . 01–02–20
PID/DATA MONITOR AND RECORD
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–02–23
SIMULATION TEST [LF] . . . . . . . . . . . . . 01–02–25
End of Toc
ON-BOARD DIAGNOSTIC OUTLINE [LF]
E5U010200000N01
Features
Block Diagram
End Of Sie
To meet the OBD-II regulations
• Diagnostic test modes adopted
Improved serviceability
• DTCs adopted
• KOEO/KOER self-test function adopted
• PID/DATA monitor function adopted
• Simulation test function adopted
INPUT DEVICE
OUTPUT DEVICE
ENGINE CONTROL SYSTEM
FAIL-SAFE
FUNCTION
DETECTION
FUNCTION
PID DATA
MONITOR
FUNCTION
SIMULATION
TEST
FUNCTION
MEMORY
FUNCTION
MALFUNCTION
INDICATION
FUNCTION
TESTER
COMMUNICATION
FUNCTION
MIL
DLC-2
CAN
WDS OR
EQUIVALENT
OBD SYSTEM
PCM
CHU0102S001
ON-BOARD DIAGNOSTIC
01–02–2
DIAGNOSTIC SYSTEM WIRING DIAGRAM [LF]
E5U010200000N07
M
1N
1M
1R
1I
1H
2X
1Q
2BE
2BB
2BC
2BD
2AZ
2BG
2BH
2AD
1AX
1BF
1B
1BE
1BA
1AW
1AV
1AY
1AZ
2Q
2S
2P
2W
2Z
2V
2U
1AL
1AO
1AJ
1AP
1AS
2AG
2AV
2AU
2AH
2AB
2AQ
2AM
2AY
BATTERY
FRONT HO2S
REAR HO2S
MAP SENSOR
ECT SENSOR
CKP SENSOR
CMP SENSOR
APP SENSOR
COOLING FAN RELAY NO.1
COOLING FAN RELAY NO.2
COOLING FAN RELAY NO.3
REAR HO2S HEATER
FRONT HO2S HEATER
FUEL PUMP RELAY
FUEL INJECTOR NO.1
FUEL INJECTOR NO.2
FUEL INJECTOR NO.3
FUEL INJECTOR NO.4
A/C RELAY
MAIN RELAY
IGNITION
SWITCH
STARTER RELAY
AT
MT
TR SWITCH
STARTER
INTERLOCK
SWITCH
DRIVE-BY-WIRE RELAY
KS
a
b
c
STARTER
PCM
(BUILT INTO BARO
SENSOR)
E5U102ZW4917
ON-BOARD DIAGNOSTIC
01–02–3
01–02
End Of Sie
M
1P
1AK
1AR
1AT
2AK
2AI
2C
2K
2G
2L
2H
2J
1U
2E
2B
1BD
1BH
1BB
2BA
2AW
2AX
2AT
2A
1V
2AO
2AL
2AJ
2AP
1AM
1AI
1AQ
1X
1X
1AU
1AB
1AF
1D
1J
2T
2O
a
b
c
IAT SENSOR
MAF SENSOR
TP SENSOR
CAN
RELATED
MODULE
GENERATOR
TERMINAL P
CRUISE CONTROL SWITCH
TO TR SWITCH
NEUTRAL SWITCH
CPP SWITCH
VSS
REFRIGERANT PRESSURE SWITCH
BRAKE SWITCH
PSP SWITCH
GENERATOR TERMINAL D
EGR VALVE
VARIABLE INTAKE AIR SOLENOID VALVE
EVAP SYSTEM LEAK DETECTION PUMP
OCV
THROTTLE VALVE ACTUATOR
IGNITION COIL NO.1
IGNITION COIL NO.2
IGNITION COIL NO.3
IGNITION COIL NO.4
AT
MT
PURGE SOLENOID VALVE
A/C AMPLIFIER
HIGH, LOW
MIDDLE
MT WITHOUT ABS/DSC
PCM
(BUILT INTO BARO
SENSOR)
E5U102ZW4918
ON-BOARD DIAGNOSTIC
01–02–4
DIAGNOSTIC TEST MODE [LF]
E5U010200000N02
• To meet OBD-II regulations, the following diagnostic test modes have been adopted.
Sending Diagnostic Data
PID data monitor
• The PID data monitor items are shown below.
PID data monitor table
Diagnostic test mode
Item
Mode 01
Sending diagnostic data (PID data monitor/On-board system readiness test)
Mode 02
Sending freeze frame data
Mode 03
Sending emission-related malfunction code (DTC)
Mode 04
Clearing/resetting emission-related malfunction information
Mode 06
Sending intermittent monitoring system test results (DMTR)
Mode 07
Sending continuous monitoring system test results (pending code)
Mode 08
On-board device control (simulation test, active command mode)
Mode 09
Request vehicle information
Full names
Unit
Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short term fuel trim
%
Long term fuel trim
%
MAP
kPa
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
°
IAT
°C
°F
MAF
g/s
Absolute TP
%
O2S location
No unit
Input voltage from rear HO2S
V
Short term fuel trim associated with rear HO2S
%
OBD requirement according to vehicle design
No unit
Time since engine start
s
Distance travelled while MIL is activated
km
miles
EGR valve control signal
%
Purge solenoid valve control signal
%
Fuel level
%
Number of warm-ups since DTCs cleared
No unit
Distance travelled since DTCs cleared
km
miles
Barometric pressure
kPa
Lambda
—
Front HO2S output current
mA
Estimated catalyst converter temperature
°C
°F
PCM voltage
V
Absolute load value
%
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio
No unit
Relative TP
%
Ambient air temperature
°C
°F
TP from TP sensor No.2
%
APP from APP sensor No.1
%
APP from APP sensor No.2
%
Throttle actuator control signal
%
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