ENGINE (DIAGNOSTICS)(H4DOTC) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0246 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” HIGH

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Poor driving performance

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode , and Inspection Mode .

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK HARNESS BETWEEN ECM AND WASTEGATE CONTROL SOLENOID VALVE CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from ECM and wastegate control solenoid valve.

3) Turn the ignition switch to ON.

4) Measure the voltage between ECM and chassis ground.

Connector & terminal

(B137) No. 27 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Repair short circuit to power in the harness between ECM and wastegate control solenoid valve connector.

2.CHECK WASTEGATE CONTROL SOLENOID VALVE.

1) Turn the ignition switch to OFF.

2) Measure the resistance between wastegate control solenoid valve terminals.

Terminals

No. 1 — No. 2:

Is the resistance less than 1 Ω?

Replace the wastegate control solenoid valve.

Repair the poor contact of ECM connector.