Code C33 - Technical Troubleshooting discussion in Forkliftaction's forums

Toyota 8HBE30:
Code C33

It shows that this is a result of the horn switch being stuck and the horn blows constantly if I unplug one of the wires from the horn directly and plug it back up it works just fine for about 24 hours and does it again. Any thoughts on why it would do this?

Posted 9 Nov 2022 01:29
Discussion started by Bryan_Smith
Texas, United States

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Code Title Horn Switch Stuck
Operator Display C33
System Response
Ignores stuck input. Turns off Horn. Horn will respond to input from alternate
source if equipped (this does not include the second horn switch on the control
handle)
Alarm Sounds Yes (3 beeps, repeated until fault is cleared)
Reason
Horn request ON longer than time out value (10 seconds). Stuck switch is disabled;
if equipped with an alternate switch, the alternate switch is still active. Possible bad
VM.
Tests to Run
Examine horn switch and related wiring. Examine grab rail switches if provided.
If switches are okay, replace VM
How to Clear Release or repair horn switch. Replace VM

Posted 18 Nov 2022 13:06
Reply by delga76
Florida, United States

thanks

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