Diagnosis and Tests manual for the John Deere 6230, 6330, 6430, 7130 and 7230 North American tractors, with controller fault codes, full wiring diagrams, and transmission and hydraulic diagnostics.
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This is the Diagnosis and Tests Service Manual (TM400719, dated November 2013) for the North American version of five John Deere tractors: the 6230, 6330, 6430, 7130 and 7230. The manual itself states its exact coverage on the cover page - "Covered models: 6230, 6330, 6430, 7130, 7230 (North America)" - and includes a 2009 serial number break noting that certain diagnostic procedures changed partway through production, so checking your tractor's serial number against that break matters before following some of the later sections.
Fault code diagnostics are organized by controller: the BCU (Basic Control Unit), ECU (Engine Control Unit), EPC (Electronic Power Control), and PRC controllers each get their own dedicated group, which is the right starting point once you've pulled a code from the dash or a diagnostic tool. From there, the manual's Observable Symptoms section walks through electronics, the electronic control units themselves, and each of the three available transmissions - SyncroPlus, PowrReverser, and PowrQuad - along with the drive train, steering and brakes, hydraulic system, and operator's cab.
Because this manual includes full electrical wiring diagrams, it also cross-references the equivalent EAME (Europe, Africa, Middle East) wiring harness part numbers in several places - this is simply shared engineering documentation between the North American and European model ranges, not a sign that this manual covers the European-market models themselves. Beyond electronics, the manual covers the engine's operational checks, tests and adjustments, the fuel, air intake and cooling systems, and a thorough electrical system section covering everything from the starting motor and instrument cluster through lighting, climate control, and accessory connections. For anyone diagnosing one of these five North American tractor models, this manual gives the complete controller-by-controller diagnostic path.
| Models Covered | 6230, 6330, 6430, 7130, 7230 (North America) |
|---|---|
| Manual Number | TM400719 (November 2013) |
| Serial Number Break | 2009 |
| Controller Codes | BCU, ECU, EPC, PRC |
| Transmission Options | SyncroPlus, PowrReverser, PowrQuad |
| Includes | Electrical wiring diagrams |
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