P1400

DESCRIPTION
The EGR valve and EVAP canister purge control solenoid valve responds to signals from the ECM. When the ECM sends an ON (ground) signal, the coil in the solenoid valve is energized. A plunger will then move to cut the vacuum signal from the throttle body to the EGR valve and EVAP canister purge valve.
When the ECM sends an OFF signal, the vacuum signal passes through the solenoid valve. The signal then reaches the EGR valve and EVAP canister.




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

OVERALL FUNCTION CHECK
Use this procedure to check the overall function of the EGR valve and EVAP canister purge control solenoid valve circuit. During this check, a 1st trip DTC might not be confirmed.

WITH CONSULT
(1) Turn ignition switch "ON".




(2) Perform "EGRC SOL/V CIRCUIT" in "FUNCTION TEST" mode with CONSULT.

OR

WITH CONSULT
(1) Turn ignition switch "ON".




(2) Perform "EGRC SOLENOID VALVE" in "ACTIVE TEST" mode with CONSULT and check the operating sound, according to ON/OFF switching.

OR

WITHOUT SCAN TOOLS
(1) Start engine and warm it up sufficiently.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Start engine again.




(4) Check the voltage between ECM terminal (103) and ground at idle speed.

Voltage: 0.04 - 0.08V

(5) Check that the voltage changes to battery voltage and returns to 0.04 - 0.08V when the engine speed increases to about 2,500 rpm.

EC-EGRC/V-01 EGR Valve And EVAP Canister Purge Control Solenoid Valve (DTC: 1005):

WIRING DIAGRAM




DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION




Check air passage continuity.




If NG, replace solenoid valve.