DTC P0243-13: Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open [11/2021 - 03/2023]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT VACUUM REGULATING VALVE ASSEMBLY
- Inspect the vacuum regulating valve assembly.
Refer to INSPECTION [11/2021 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE VACUUM REGULATING VALVE ASSEMBLY. Refer to REMOVAL [11/2021 - ]
Result:
OK
See step 2
- Inspect the vacuum regulating valve assembly.
- CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE ASSEMBLY - ECM)
- Disconnect the vacuum regulating valve assembly connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition B70-1 (+) - B49-20 (WGV+) Always Below 1 Ω B70-2 (-) - B49-21 (WGV-) Always Below 1 Ω B70-1 (+) or B49-20 (WGV+) - Body ground and other terminals Always 10 kΩ or higher B70-2 (-) or B49-21 (WGV-) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- CHECK WHETHER DTC OUTPUT RECURS (DTC P0243-13)
- Clear the DTCs.
Powertrain > Engine > Clear DTCs
- Turn the ignition switch off and wait for at least 30 seconds.
- Start the engine and warm it up.
- Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
- Check the DTC judgment result.
Powertrain > Engine > Utility
Tester Display All Readiness - Input the DTC: P0243-13.
Result
Result Proceed to NORMAL
(DTCs are not output)A ABNORMAL
(DTC P0243-13 is output)B
Result:
A
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2021 - ]
Result:
B
REPLACE ECM. Refer to REMOVAL [11/2021 - ]
- Clear the DTCs.