wsm M108S Workshop Manual page 455

M108S, WSM
Injector and Injector Harness Continuity
1. Check the continuity between terminal (+) and (−) of each injector
harness from the coupler of injector harness.
2. If it is not conductive, check the continuity of harness itself and
injector itself.
(1) Coupler of Injector Harness
Injector
1. Measure the resistance between injector terminals (2) and (3).
IMPORTANT
• Do not disassemble the injector.
Injector resistance Factory spec.
(1) Injector
(2) Injector Terminal
EGR Valve Operation Check
(Check A)
1. Do the operation check for EGR valve mounted on the engine.
(Connector is also mounted on the EGR valve.)
2. Change the number of revolution after starting the engine. Then,
confirm that the voltage between EGR valve connector terminal
(+) (1) and (−) (2) changes. (fluctuation range is approximately
from 1 to 4 V.)
Refer to "Diagnosis Manual". (Code No. 9Y130-00142)
(Check B)
1. Dismount the EGR valve from the engine.
2. Confirm that EGR valve is opened after EGR valve connector
terminal (5) is connected to power terminal (+) and EGR valve
connector terminal (4) is connected to power terminal (−).
IMPORTANT
• Power voltage should be 5 V at this time. And if EGR valve
is not opened, increase the power voltage 1 V by 1 V (max.
12 V). However, energizing at each voltage should be within
5 seconds, and not to increase the voltage any more when
EGR valve is opened.
3. Connect the EGR valve connector to the harness as below and
confirm that the voltage between EGR valve connector terminal
(1) and (2) changes with valve opening operation of step 2.
(1) EGR Valve Connector Terminal (+)
(Sensor Output)
(2) EGR Valve Connector Terminal (−)
(Sensor Ground)
9-S29
ELECTRICAL SYSTEM
W1044301
0.35 to 0.55 Ω
(3) Injector Terminal
W1044800
(3) EGR Valve Connector Terminal (5 V)
(Sensor Power)
(4) EGR Valve Connector Terminal (−)
(Motor Ground)
(5) EGR Valve Connector Terminal
(12 V) (Motor Power)
W1045919
KiSC issued 05, 2012 A