DTC P1499 - EGR Solenoid Valve Signal #4 Circuit Malfunction (High Input) -

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION:
- Detected simultaneously at occurrence of malfunction.
TROUBLE SYMPTOM:
- Erroneous idling
- Engine stalls.
- Engine breathing
CAUTION: After repair or replacement of malfunctioning parts, conduct Clear Memory Mode < Ref. to OPERATION , CLEAR MEMORY MODE > and INSPECTION MODE < Ref. to OPERATION , INSPECTION MODE. >
WIRING DIAGRAM:

Fig 1: EGR Solenoid Valve Wiring Diagram
Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK ANY OTHER DTC ON DISPLAY.	Is there any DTC on display?	Go to step 2.	Go to step 3.
2 CHECK ECM GROUND CIRCUIT. Turn ignition switch to OFF. Measure resistance between ECM connector and chassis ground. Connector & terminal (B134) No. 7 - Chassis ground: (B137) No. 14 - Chassis ground: (B135) No. 21 - Chassis ground:	Is the measured value less than 5 Ω?	Go to step 3.	Repair harness and connector. NOTE: In this case, repair the following: Open circuit in harness between ECM connector and engine ground Poor contact in ECM connector Poor contact in coupling connector
3 CHECK HARNESS BETWEEN ECM AND EGR SOLENOID VALVE CONNECTOR. Turn ignition switch to OFF. Disconnect connector from EGR solenoid valve. Turn ignition switch to ON. Measure voltage between ECM connector and chassis ground. Connector & terminal DTC P1493; (B134) No. 18 - Chassis ground: DTC P1495; (B134) No. 17 - Chassis ground: DTC P1497; (B134) No. 16 - Chassis ground: DTC P1499; (B134) No. 15 - Chassis ground:	Is the measured value more than 10 V?	Repair ground short circuit between ECM and EGR solenoid valve connector. After completion of repair, replace ECM. < Ref. to ENGINE CONTROL MODULE . >	Replace ECM. < Ref. to ENGINE CONTROL MODULE . >