Error ad-5 and ad-6 - Maintenance & Troubleshooting discussion in Forkliftaction's forums

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Error ad-5 and ad-6

Toyota 7FBEU15

I have a Toyota 7fbeu15. When you switch key on. The contact does not immediately pull in. When it does it throws the error ad-5 and ad-6. Travel works but no hydraulics and steering. Tested contactor with known good,checked fuse connections not were ok.

Posted 12 Dec 2019 05:06
By hyster123
joined 23 Mar'19 - 9 messages
Georgia, United States

dave

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AD-5 means CPU (logic card) cannot communicate over the CAN BUS wires to a travel (traction/drive) controller. AD-6 is same thing, except no communication to pump controller. Do an ohm test across the CAN high and low wires...should see 60 ohms...if you see 120 ohms you have an open. I highly suspect the problem is you are not getting voltage to the controllers to power them up...hence they cannot communicate with logic board.

Posted 12 Dec 2019 08:13
By Techtrainer64
joined 26 Aug'10 - 46 messages
Kentucky, United States

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