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DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (HIGH INPUT)

DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (HIGH INPUT)

DTC DETECTING CONDITION:


• Immediately at fault recognition.

• GENERAL DESCRIPTION , , and


TROUBLE SYMPTOM:


• Erroneous idling

• Poor driving performance

• Engine breathing


Important

After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .


WIRING DIAGRAM:


CHECK ANY OTHER DTC ON DISPLAY.

Is any other DTC displayed?

Yes

Inspect DTC using “List of Diagnostic Trouble Code (DTC)”.


No


CHECK HARNESS BETWEEN ECM AND EGR SOLENOID VALVE.

Turn ignition switch to OFF.

Disconnect connector from EGR solenoid valve.

Turn ignition switch to OFF.

Measure voltage between EGR solenoid valve and engine ground.

Connector & terminal

DTC P1493; (B134) No. 9 (+) — Chassis ground (−):

DTC P1495; (B134) No. 10 (+) — Chassis ground (−):

DTC P1497; (B134) No. 11 (+) — Chassis ground (−):

DTC P1499; (B134) No. 8 (+) — Chassis ground (−):

Is the measured value more than 10 V?

Yes

Repair ground short circuit between ECM and EGR solenoid valve connector. After repair, replace ECM.


No

• Replace ECM.