2002 MAZDA 6 fuse box

F2–40
INTAKE-AIR SYSTEM
VARIABLE BOOST CONTROL (VBC) SOLENOID VALVE INSPECTIONA6E401013710201Air Tightness Inspection
1. Connect a vacuum pump to the VBC solenoid
valve port A, and apply vacuum.
Note
•Even if there is vacuum leakage, the VBC
solenoid valve is okay if vacuum increases
to –47 kPa {–353 mmHg, –14 inHg} or
more.
2. Verify that the vacuum increases to –47 kPa {–
353 mmHg, –14 inHg} or more.
•If not as specified, replace the VBC solenoid
valve.
•If VBC solenoid valve is okay, perform the
“Operation Inspection”.
Operation Inspection
1. Connect a vacuum pump to the VBC solenoid valve port A, and apply vacuum.
2. Turn the engine switch to ON.
3. Simulate the VBCV PID to 100 % using the WDS or equivalent.
4. Verify that the vacuum is decreased.
•If not as specified, replace the VBC solenoid valve.
•If VBC solenoid valve is okay, perform the “Resistance Inspection”.
Resistance Inspection
Note
•Perform the following test only when directed.
1. Measure the resistance between the VBC
solenoid valve terminals using an ohmmeter.
•If not as specified, replace the VBC solenoid
valve.
•If VBC solenoid valve is okay, perform the
“Circuit Open/Short Inspection”.
Specification
11—13 kilohms [20°C {68°F}]
Circuit Open/Short Inspection
1. Inspect for open/short circuit in the following
wiring harnesses.
•If there is open/short circuit, repair or replace
wiring harnesses.
A
A6E40102012
A B
A6E40102031
AA
BC
DE VBC SOLENOID VALVE
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
A6E40102014

F2–42
INTAKE-AIR SYSTEM
VARIABLE SWIRL CONTROL (VSC) SOLENOID VALVE INSPECTIONA6E401013110202
Note
•Perform the following test only when directed.
1. Inspect airflow between the ports under the
following conditions.
•If not as specified, replace the VSC solenoid
valve.
•If VSC solenoid valve is okay, perform the
“Circuit Open/Short Inspection”.
Circuit Open/Short Inspection
1. Inspect for open/short circuit in the following
wiring harnesses.
•If there is open/short circuit, repair or replace
wiring harnesses.
Open circuit
•If there is no continuity, the circuit is open. Repair
or replace the harness.
—VSC solenoid valve terminal A (harness-side)
and PCM control relay terminal C
—VSC solenoid valve terminal B (harness-side)
and PCM terminal 101
Short circuit
•If there is continuity, the circuit is shorted. Repair of replace the harness.
—VSC solenoid valve terminal A (harness-side) and GND.
—VSC solenoid valve terminal B (harness-side) and power supply
End Of Sie
GLOW PLUG REMOVAL/INSTALLATIONA6E401018601201
Caution
•Do not damage the heated section of the glow plug.
•Do not reuse a glow plug that has been dropped over a height of 10 cm, even when there are no
scratches and resistance is normal (approx. 0.6 ohms [20°C {68°F}]).
•Do not remove the glow plug unless you are replacing it.
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
A
A B
B
C
A6E40102018
: Airflow
Por t
C B
A
GND B+
ABTerminal
Step
1
2
A6E40102020
BAA
B
C
D VSC SOLENOID VALVE
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
A6E40102021
1 Glow plug lead
2Glow plug
(See F2–43 Glow Plug Removal Note)
(See F2–43 Glow Plug Installation Note)0.8—1.5 N·m
{8—15 kgf·cm,
7—13 in·lbf}
15—20 N·m
{1.5—2.0 kgf·m,
11—14 ft·lbf}
12
A6E40102022

F2–60
EMISSION SYSTEM
EGR SOLENOID VALVE (VACUUM) INSPECTIONA6E401618741201
Note
•Perform the following inspection only when directed.
1. Inspect airflow between the ports under the
following conditions.
•If not as specified, replace the EGR solenoid
valve (vacuum).
•If as specified, carry out the “Circuit Open/
Short Inspection”.
Circuit Open/Short Inspection
1. Inspect the following wiring harness for open or
short (continuity check).
Open circuit
•If there is no continuity, the circuit is open. Repair
or replace the harness.
—EGR solenoid valve (vacuum) terminal A
(harness-side) and PCM control relay
terminal C (harness-side)
—EGR solenoid valve (vacuum) terminal B
(harness-side) and PCM terminal 99
Short circuit
•If there is continuity, the circuit is shorted. Repair
or replace the harness.
—EGR solenoid valve (vacuum) terminal A (harness-side) and GND
—EGR solenoid valve (vacuum) terminal B (harness-side) and power supply
End Of Sie
EGR SOLENOID VALVE (VENT) INSPECTIONA6E401618741202
Note
•Perform the following inspection only when directed.
1. Inspect airflow between the ports under the
following conditions.
•If not as specified, replace the EGR solenoid
valve.
•If as specified, carry out the “Circuit Open/
Short Inspection”.
BAA B
A6E40162001
StepTerminal
ABAB Por t
1
2
B+GND: Airflow
: Continuity
A6E40162020
EGR SOLENOID VALVE
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
A
BA
E
C
D
A6E40162002
BA
CBA
A6E40162003
Step
1
2
A
BAB
C Por t
Terminal
: Airflow
B+
GND: Continuity
A6E40162021

EMISSION SYSTEM
F2–61
F2
Circuit Open/Short Inspection
1. Inspect the following wiring harness for an open
or short circuit (continuity check).
Open circuit
•If there is no continuity, the circuit is open, Repair
or replace the harness.
—EGR solenoid valve (vent) terminal A
(harness-side) and PCM control relay
terminal C (harness-side)
—EGR solenoid valve (vent) terminal B
(harness-side) and PCM terminal 72
Short circuit
•If there is continuity, the circuit is shorted. Repair
or replace the harness.
—EGR solenoid valve (vent) terminal A (harness-side) and GND
—EGR solenoid valve (vent) terminal B (harness-side) and power supply
End Of Sie
EGR CONTROL SOLENOID VALVE INSPECTIONA6E401618741203
Note
•Perform the following inspection only when directed.
1. Inspect airflow between the ports under the
following conditions.
•If not as specified, replace the EGR control
solenoid valve.
•If as specified, carry out the “Circuit Open/
Short Inspection”.
Circuit Open/Short inspection
1. Inspect the following wiring harness for an open
or short circuit (continuity check).
Open circuit
•If there is no continuity, the circuit is open. Repair
or replace the harness.
—EGR control solenoid valve terminal A
(harness-side) and PCM control relay
terminal C (harness-side)
—EGR control solenoid valve terminal B
(harness-side) and PCM terminal 77
Short circuit
•If there is continuity, the circuit is shorted. Repair
or replace the harness.
—EGR control solenoid valve terminal A (harness-side) and GND
—EGR control solenoid valve terminal B (harness-side) and power supply
End Of Sie
EGR SOLENOID VALVE(VENT)
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
BAA
C
DE
A6E40162004
B
AA
B
A6E40162005
StepTerminalPor t
: Airflow
ABAB
GND
B+
1
2
: Continuity
A6E40162022
EGR CONTROL SOLENOID VALVE
HARNESS SIDE CONNECTORFUSE BOX
(MAIN RELAY)
BAAE
C
D
A6E40162006

EMISSION SYSTEM
F2–63
F2
INTAKE SHUTTER SOLENOID VALVE INSPECTIONA6E401613937201
Note
•Perform the following inspection only when directed.
•The inspection includes both intake shutter solenoid valve (half) and intake shutter solenoid valve (full).
1. Inspect airflow between the ports under the following conditions.
•If not as specified, replace the intake shutter solenoid valve.
•If as specified, carry out the “Circuit Open/Short Inspection”.
Intake Shutter Solenoid Valve (Half) Circuit Open/
Short Inspection
1. Disconnect the PCM connector. (See F2–64 PCM
REMOVAL/INSTALLATION.)
2. Inspect the following wiring harness for an open
or short circuit (continuity check).
Open circuit
•If there is no continuity, the circuit is open. Repair
or replace the harness.
—Intake shutter solenoid valve (half) terminal A
(harness-side) and PCM control relay
terminal C (harness-side)
—Intake shutter solenoid valve (half) terminal B
(harness-side) and PCM terminal 74
Short circuit
•If there is continuity, the circuit is shorted. Repair or replace the harness.
—Intake shutter solenoid valve (half) terminal A (harness-side) and GND
—Intake shutter solenoid valve (half) terminal B (harness-side) and power supply
Intake Shutter Solenoid Valve (Full) Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F2–64 PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harness for an open
or short circuit (continuity check).
Open circuit
•If there is no continuity, the circuit is open. Repair
or replace the harness.
—Intake shutter solenoid valve (full) terminal A
(harness-side) and PCM control relay
terminal C (harness-side)
—Intake shutter solenoid valve (full) terminal B
(harness-side) and PCM terminal 100
Short circuit
•If there is continuity, the circuit is shorted. Repair or replace the harness.
—Intake shutter solenoid valve (full) terminal A (harness-side) and GND
—Intake shutter solenoid valve (full) terminal B (harness-side) and power supply
End Of Sie
B
A
CB
A
A6E40162024
StepTerminal
C B
A B APor t: Airflow
1
2B+ GND
: Continuity
A6E40162023
INTAKE SHUTTER SOLENOID
VALVE (HALF)
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
B
AA
E
C
D
A6E40162010
INTAKE SHUTTER SOLENOID
VALVE (FULL)
HARNESS SIDE CONNECTORFUSE BOX
(PCM CONTROL RELAY)
B
AA
C
DE
A6E40162011