This post really won’t address a wide audience, only those that seem to be searching for meanings behind error codes given by their Toyota forklifts, and presumably forklifts of other brands as well. With improving self-diagnostics on units you see the lift actually trying to assist the operator or servicing technician in pointing out the way to diagnosing where a problem exists.
The trouble with this is often the generality of the code, heard often in the hallways through service is the lament that the code we are working on isn’t specific, and other than telling us there “is” a problem, it doesn’t go much further to lessoning the diagnostic time. At that point our technicians are required to refer to their extensive collection of trouble shooting information and often various OEM supplied diagnostic tools.
Recently Toyota talked about these troublesome codes in a technical news brief:
Let’s address the “catch all” error codes. Depending on the unit there are certain codes that pertain to an overall system. As an example; the “C0” error code on a 5FBCU truck covers the entire travel system. If the code is singular (not part of a group of different codes), then the troubleshooting will be based on the individual code, with an emphasis on trying to “force” the failure, while conducting individual test steps. If it is part of a group of differing codes, start by deducing the common denominator, for the group of codes. Notice that this article does not get into checking specific error codes. When there are a group of codes, DO NOT start troubleshooting individual codes. And DO NOT try to trouble shoot any code by blindly following the repair manual, when the truck is working correctly.
Most failures are caused by a single overlying issue. For this reason, the action plan is all about relating what the unit is, or isn’t doing, based on inputs and outputs. The focus is how to relate those inputs and outputs to the subsystem(s), and error codes. The goal is to tie together the complaint, the error codes and the commonalities, before proceeding with the hands on troubleshooting portion of the action plan.There may be many things that you are in fact quite capable of fixing on your lift truck, but when dealing with error codes, you may be time and money ahead by simply contacting the local dealer. As time moves along, lift truck systems are becoming more and more complex, and without the OEM supplied training and tools maintaining these systems becomes too complex for those not called on to do so as part of their day to day actions.
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