Overall Function Check

Use this procedure to check the overall EGR function. During this check, a 1st trip DTC might not be confirmed.

Without CONSULT
(1) Start engine and warm it up to normal operating temperature.
(2) Check the EGR valve lifting when revving engine from idle up to 3,000 rpm quickly under no load.
EGR valve should lift up and down without sticking.
(3) Check voltage between ECM terminal 63 (EGR temperature sensor signal) and ground at idle speed.
Less than 4.5 V should exist.
(4) Turn ignition switch "OFF".
(5) Disconnect EGR temperature sensor harness connector.
(6) Check harness continuity between EGR temperature sensor harness connector terminal 2 and ground.
Continuity should exist.
(7) Perform "EGR TEMPERATURE SENSOR", "Component Inspection".