Toyota 7FGCU25 - TWC Light - Maintenance & Troubleshooting discussion in Forkliftaction's forums

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Toyota 7FGCU25 - TWC Light

Hello, ECS 4Y LPG engine. TWC Light Stays on when running. Tried to trip code with the 6 wire plug cap by battery but ther is only a 4 wire Plug?? Does anyone know how to trip TWC codes for This unit. Thanks

Posted 31 Oct 2012 06:56
By Prentice
joined 25 Jun'08 - 600 messages
Ontario, Canada

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On those 7 series the parameters were set a little tight and the light comes on if the computer sees just 1 problem, they are really annoying.

Posted 2 Nov 2012 10:53
By rogeriwt
joined 10 Apr'07 - 323 messages
Massachusetts, United States

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Always check the simple thing first...........No Codes. Disconnected Battery for 30 sec. Light went out...........

Posted 1 Nov 2012 23:25
By Prentice
joined 25 Jun'08 - 600 messages
Ontario, Canada

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Great feed back. Thanks to all

Posted 31 Oct 2012 22:36
By Prentice
joined 25 Jun'08 - 600 messages
Ontario, Canada

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With the lock tab pointed up, jump out the bottom 2 terminals. That should make the twc light blink codes.

Posted 31 Oct 2012 09:25
By rogeriwt
joined 10 Apr'07 - 323 messages
Massachusetts, United States

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