Overall Function Check

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

PROCEDURE FOR MALFUNCTION B

Without CONSULT
(1) Start engine and warm it up to normal operating temperature.
(2) Run engine at idle for at least 2 minutes.
(3) Confirm that EGR valve is not lifting. If NG, go to trouble diagnoses for DTC P0400 and P0402.
(4) Check voltage between ECM terminal 63 (EGR temperature sensor signal) and ground at about 1,500 rpm with EGR valve lifted up to the full position by hand.
Voltage should decrease to less than 1.5V.
(5) If step 4 is OK, perform trouble diagnoses for "DTC P0400, P0402 and P1402".