4-46 FI SYSTEM DIAGNOSIS
Step 2
1) Connect the PAIR control solenoid valve coupler.
2) Turn the ignition switch ON.
3) Insert the needle pointed probes to the PAIR control solenoid
valve coupler.
4) Measure the voltage at the wire side coupler between Brown
wire and ground.
% PAIR control solenoid valve voltage: Battery voltage
(
+ Brown –
- Ground)
! 09900-25008: Multi circuit tester set
09900-25009: Needle pointed probe set
' Tester knob indication: Voltage (()
Is the voltage OK?
2
V
YES
• Brown wire open or shorted to ground, or
7
connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
NO Open or short circuit in the Brown wire.
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