Federal
CIRCUIT DIAGRAM
INSPECTION USING SCAN TOOL
HARNESS INSPECTION PROCEDURE
ACTUATOR INSPECTION
NOTE: When disconnecting the vacuum hose, make an identification mark on it so that it can be reconnected to the original position.
(1)
Disconnect the vacuum hose (yellow and green stripe) from the solenoid.
Disconnect the vacuum hose (yellow and white stripe) from the solenoid.
(2) Disconnect the harness connector.
(3)
Connect a hand vacuum pump to the nipple to which the green-striped vacuum hose was connected.
Connect a hand vacuum pump to the nipple to which the white-striped vacuum hose was connected.
(4) Apply a vacuum and check for air-tightness when voltage applied directly to the EGR solenoid and when the voltage is discontinued.
(5) Measure the resistance between the terminals of the solenoid.
Standard value: 36-44 Ohms [at 2O°C (68°F)]