P1215 LEXUS Possible Causes
- Faulty Electronic Drive Unit (EDU)
- Electronic Drive Unit (EDU) harness is open or shorted
- Poor electrical connection in Electronic Drive Unit (EDU) circuit
- Defective spill control valve
How to Fix P1215 LEXUS Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or engine service warning light soon)
P1215 LEXUS Meaning
The Electronic Drive Unit (EDU) drives the spill control valve at high speeds. The high-speed operation of the EDU under high fuel pressure conditions is achieved through the use of a DC/DC converter that provides a high-voltage quick charging system.
The engine Electronic Control Unit (ECU) continuously monitors the EDU and stops the engine if an abnormal condition is detected.
The battery voltage is increased by the DC/DC converter. A voltage of approximately 50 V is applied to the spill control valve according to the IJ+ signal received from the engine ECU. At this time, the injection check signal (IJF) is sent to the engine ECU.