DTC P1235-13: High Pressure Fuel Pump Circuit Open [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE)
Refer to INSPECTION [10/2022 - ]
Result
Proceed to OK NG Result:
NG
REPLACE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE). Refer to REMOVAL [10/2022 - ]
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE) - ECM)
Pre-procedure1
- Disconnect the ECM connector.
- Disconnect the fuel (engine room side) pump assembly (for high pressure side) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result B15-2 (FP+) - B27-11 (FP1+) Always Below 1 Ω Ω B15-1 (FP-) - B27-10 (FP1-) Always Below 1 Ω Ω B15-2 (FP+) or B27-11 (FP1+) - Body ground and other terminals Always 10 kΩ or higher kΩ B15-1 (FP-) or B27-10 (FP1-) - Body ground and other terminals Always 10 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None.
Result:
OK
REPLACE ECM. Refer to REMOVAL [10/2022 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR