LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

car won`t start.

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Old 10-04-17, 01:13 AM
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Neromax
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Default car won`t start.

sc 400 1992

Opening the door with a key, an alarm came on, and the car won`t start.
The EIF does not have adequate voltage. for "1" pin only 9V for "2" the same as the battery. When I connect artificially sockets 1 and 2 (efi) everything works. Where does the tension go to slot # 1? With ignition or ecu? why did the car won`t start when the alarm turn on (I turned it off by turning the ignition switch)
Old 10-04-17, 09:57 AM
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timmy0tool
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car is equipped with an immobilizer so when the alarm is triggered the car will not engage the starter as an anti-theft.
Old 10-04-17, 10:51 AM
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deanshark
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I'm not sure if the SC400 alarm is the same as the LS400 but if you try unlocking the passenger door twice, (turning the key 2 times) it usually works. This happened with my 93 LS 3 times and it started right up afterwards.
Old 10-05-17, 04:25 PM
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dicer
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The lock switch need its contacts cleaned.
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