LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Ecu

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Old

Mar 25, 2025 | 03:08 PM

#1

ionu2

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2nd gear

Joined: Mar 2025

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Ecu

After battery charge I neglected to allow ECU to reset before turning off ignition. Now power button won't engage. Have tried several times by disconnecting negative and allowing it to reset. Any help on what to do next much appreciated. Please don't tell me to take it to the dealer, Thanks

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Old

Mar 25, 2025 | 07:19 PM

#2

Zetascry

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Joined: Feb 2018

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From: New York

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Quote:

Originally Posted by ionu2

After battery charge I neglected to allow ECU to reset before turning off ignition. Now power button won't engage. Have tried several times by disconnecting negative and allowing it to reset. Any help on what to do next much appreciated. Please don't tell me to take it to the dealer, Thanks

happened to me this morning. Disconnect battery for 15-30 minutes. Reconnect battery terminals and leave car as is for 15-30 minutes. Lock the car. Come back after time passed. Hold down brake and try the button a few times with a brief pause in between. Try with foot on the brake and without. Hope it helps.

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Old

Mar 27, 2025 | 02:21 PM

#3

ionu2

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2nd gear

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Outstanding you were spot on worked the first time. Thank you and Thank you

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