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Step
2
1) Turn the ignition switch ON.
2) Measure the voltage between the O/W wire and ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage (
)
PAIR control solenoid valve voltage
Battery voltage
((+) terminal: O/W – (–) terminal: Ground)
Is the voltage OK?
Action
(A)
V
I823H1110176-01
Engine General Information and Diagnosis:
Yes
• W/G wire open or
shorted to the
ground, or poor "44"
connection failure.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again. Refer to "ECM
Removal and
Installation in Section
1C (Page 1C-2)".
1A-125
No
Open or short circuit in
the O/W wire.
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