DTC P1499 EGR Solenoid Valve Signal #4 Circuit Malfunction (High Input): Wiring Diagram

Engine electrical system, 2.5 L model (without push button start). See appropriate SYSTEM WIRING DIAGRAM article.
Engine electrical system, 2.5 L model (with push button start). See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: EGR Solenoid Valve Signal No. 4 - Circuit Diagram
Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK HARNESS BETWEEN ECM AND EGR CONTROL VALVE CONNECTOR. Turn the ignition switch to OFF. Disconnect the connector from ECM and EGR control valve. Turn the ignition switch to ON. Measure the voltage between ECM and chassis ground. Connector & terminal DTC P1493; (B136) No. 11 (+) - Chassis ground (-): DTC P1495; (B136) No. 13 (+) - Chassis ground (-): DTC P1497; (B136) No. 31 (+) - Chassis ground (-): DTC P1499; (B136) No. 32 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Repair the short circuit to power in the harness between the ECM and EGR control valve connector.	Go to step 2 .
2 CHECK EGR CONTROL VALVE. Measure the resistance between EGR control valve terminals. Terminals DTC P1493; No. 2 - No. 3: DTC P1495; No. 2 - No. 1: DTC P1497; No. 5 - No. 4: DTC P1499; No. 5 - No. 6:	Is the resistance 20 Ω or more?	Repair the poor contact of ECM connector.	Replace EGR control valve. Refer to EGR CONTROL VALVE .