DTC P0235-15: Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
- Disconnect the No. 2 turbo pressure sensor connector.
- Turn the ignition switch to ON.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector
(to No. 2 Turbo Pressure Sensor)Standard Voltage
Tester Connection Condition Specified Condition C76-3 (VC) - C76-2 (E2) Ignition switch ON 4.5 to 5.5 V C76-1 (PTA) - C76-2 (E2) Ignition switch ON 3.0 to 5.5 V - Turn the ignition switch off and wait for at least 30 seconds.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C76-3 (VC) - C76-1 (PTA) Ignition switch off 171 to 189 kΩ C76-2 (E2) - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE NO. 2 TURBO PRESSURE SENSOR
Refer to PROCEDURE - Step 3
Result:
NG
See step 2
- CHECK HARNESS AND CONNECTOR (NO. 2 TURBO PRESSURE SENSOR - ECM)
- Disconnect the No. 2 turbo pressure sensor connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C76-1 (PTA) - C88-126 (PTA) Always Below 1 Ω C76-2 (E2) - C88-125 (EPTA) Always Below 1 Ω C76-1 (PTA) or C88-126 (PTA) - Other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM
Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR