DTC P0246:00 [L3 Turbo]

id0102b7900100

DTC P0246:00

Wastegate control solenoid valve circuit high input
DETECTION CONDITION
•  When the PCM turns the wastegate control solenoid valve on but the wastegate control solenoid valve circuit voltage is high for 5 s, the PCM determines that the wastegate control solenoid valve control circuit voltage is high.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Wastegate control solenoid valve connector or terminals malfunction
•  Wastegate control solenoid valve malfunction
•  PCM connector or terminals malfunction
•  Short to power supply in wiring harness between wastegate control solenoid valve terminal B and PCM terminal 2AA
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
INSPECT WASTEGATE CONTROL SOLENOID VALVE CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the wastegate control solenoid valve connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 6.
No
Go to the next step.
3
INSPECT WASTEGATE CONTROL SOLENOID VALVE
•  Inspect the wastegate control solenoid valve.
•  Is there any malfunction?
Yes
Replace the wastegate control solenoid valve, then go to Step 6.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L3 Turbo].)
No
Go to the next step.
4
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 6.
No
Go to the next step.
5
INSPECT WASTEGATE CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Wastegate control solenoid valve and PCM connectors are disconnected.
•  Switch the ignition to ON (engine off).
•  Measure the voltage at the wastegate control solenoid valve terminal B (wiring harness-side).
•  Is there any voltage?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to the next step.
No
Go to the next step.
6
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the KOEO or KOER self test.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [L3 Turbo].)
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [L3 Turbo].)
No
DTC troubleshooting completed.