FI SYSTEM DIAGNOSIS 4-83
– Between Br/Y wire and ground: infinity
– Between Br/Y wire terminal and other terminal at PAIR con-
trol solenoid valve coupler: infinity
• Voltage
09900-25008: Multi circuit tester set
Tester knob indication: Voltage (
)
– Between Br/Y wire and ground: approx. 0 V (When ignition
switch is ON)
Is check result OK?
Step 3
PAIR control solenoid valve check
1) Turn the ignition switch OFF.
2) Remove the PAIR control solenoid valve. (
11-4)
3) Measure the PAIR control solenoid valve resistance between
terminals.
09900-25008: Multi circuit tester set
Tester knob indication: Resistance (
)
PAIR control solenoid valve resistance:
18 – 22
at 20 °C (68 °F)
(Terminal – Terminal)
Is check result OK?
2
2
YES
Go to Step 3.
NO
Repair or replace the defective wire harness.
YES
Replace the ECM with a known good one, and
inspect it again.
NO
Replace the PAIR control solenoid valve with a
new one.
V
2
3
