Questions & Answers

2001 Toyota Highlander tach signal problem

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I just installed an evo one in a 2001 Highlander. Vehicle runs for about 8 seconds then shuts down and flashes the parking lights four times which means no tach signal. I have programmed the module to tachless. I set tachless sensitivity -3 because starter did grind with default setting. I have reflashed the module a couple of times and double triple checked all my wiring what am i missing. Why would it flash no tach signal if I have it set to tachless mode option 20 selection 2.  Please help I have no idea where to go from here
Toyota Highlander MFG date: 01/01
Evo one SN: 002B04 321003
asked Oct 1, 2023 in Toyota by zsolt deak (280 points)

1 Answer

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Hello,

 

Tachless is based on the charging system. i would meter the battery when remote starting and observe the voltage.

If it does not climb to roughly 14 then stabilize I would verify how the ignition switch is wired. A ignition circuit is missing.

 

Best regards.
answered Oct 2, 2023 by derek g (346,560 points)
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