Caution / Notice / Hint
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- After the ignition switch off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
- When disconnecting and reconnecting the auxiliary battery.
Refer to WORK PROCEDURE [09/2023 - ]
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
- Vehicle Control History may be stored in the hybrid vehicle control ECU assembly if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
Refer to VEHICLE CONTROL HISTORY (RoB) [12/2023 - ]
(Select Powertrain in Health Check and then check the time stamp data.)
- If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU assembly, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
HINT:
- The following conditions may also cause DTC P0505-00 to be stored:
- If the floor carpet or floor mat is resting slightly on the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open.
- The accelerator pedal is not fully released.
- Refer to "Data List / Active Test" [Engine Speed and ISC Learning Value].
Refer to DATA LIST / ACTIVE TEST [12/2023 - ]