Infiniti M45 (Y34). Manual — part 547
DUAL MODE MUFFLER
EX-7
C
D
E
F
G
H
I
J
K
L
M
A
EX
Wiring Diagram -VEXH-
ABS00A3J
TBWA0317E
EX-8
DUAL MODE MUFFLER
Terminals and Reference Value for Dual Mode Muffler Control Unit
ABS00A7K
Components Inspection
ABS00A3L
EXHAUST CONTROL VALVE
Check operation of valve and actuator by revving engine.
DUAL MODE MUFFLER ACTUATOR
Check voltage between terminals 1 and 2 of dual mode muffler actu-
ator harness connector and ground.
Terminal No.
Item
condition
Voltage (V)
(Wire color)
Ignition switch
Operation or con-
dition
1 (W/G)
Ignition switch
OFF
0
ON
Battery voltage
2 (B)
Ground
ON
0
3 (L)
Engine speed signal
—
Idling
Approx. 4 - 6
4 (G/Y)
Exhaust control valve signal
(Open)
ON
CLOSE
0 - 1
OPEN
Battery voltage
5 (G/R)
Exhaust control valve signal
(Close)
CLOSE
Battery voltage
OPEN
0 - 1
6 (R/Y)
Accelerator pedal position signal
ON
Over half
More than approx. 2.4
Below half
Approx. 0 - 2.4
Condition
Exhaust control valve
Accelerator pedal
opening
Engine rpm
Below half (no-load)
Above approximate 4830 rpm
Open
Below approximate 4730 rpm
Close
Over half (loaded)
—
Open
PBIZ0004J
Terminals
Exhaust control valve
(+)
Terminal
(Wire color)
(-)
Open
Close
1 (G/Y)
GND
Battery voltage
0 - 1V
2
(G/R)
0 - 1V
Battery voltage
PBIC2409E
DUAL MODE MUFFLER
EX-9
C
D
E
F
G
H
I
J
K
L
M
A
EX
Removal and Installation
ABS00A3M
NOTE:
Exhaust control valve is provided in center muffler and not permitted to disassemble.
REMOVAL (CABLE)
NOTE:
Removal and installation procedure is the same on both side of actuator and exhaust control valve.
1.
Remove cable from actuator and exhaust control valve.
●
Loosen lock nut A.
CAUTION:
Do not loosen positioning nuts B and C.
2.
Remove middle clamp bolt and cable.
INSTALLATION (CABLE)
●
Install in the reverse order of removal.
●
Install cable on cable bracket and then tighten lock nut A to specified torque.
●
To avoid twisting the cable when tightening the lock nut A, hold the positioning nut B or C with a wrench.
●
If the positioning nuts B and C are loosened, place the nut B so that span D becomes 17.0 mm (0.669 in).
Hold the nut B with a wrench and tighten the nut C to specified torque.
NOTE:
Additional adjustment is unnecessary.
REMOVAL (ACTUATOR)
1.
Remove insulator on lower side of actuator.
2.
Disconnect harness connector and cable from actuator.
Refer to
.
3.
Remove actuator.
1.
Actuator mounting bracket
2.
Actuator cover
3.
Cable
4.
Center muffler
5.
Exhaust control valve
(Do not disassemble.)
6.
Actuator
7.
Muffler control unit
SBIA0404E
PBIC0174E
EX-10
DUAL MODE MUFFLER
INSTALLATION (ACTUATOR)
Install in the reverse order of removal.
REMOVAL (MUFFLER CONTROL UNIT)
1.
Open trunk lid, and remove trunk side finisher (right).
2.
Remove muffler control unit fixing bolt.
3.
Disconnect harness connector and remove muffler control unit
along with bracket.
CAUTION:
Do not drop or damage muffler control unit when removing.
INSTALLATION
Install in the reverse order of removal.
PBIC0175E
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