Use the filters below to access service and part manuals for our product lines.

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School Bus
Service Class
01. Why Thomas?
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02. C2 Familiarization
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03. C2 Familiarization (Shortened)
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04. Cummins DSM-EFX Breakout
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05. DVOM Not So Basic
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06. C2 Electrical Troubleshooting
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07. Air Disc Brakes
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08. C2 Power Distribution
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09. Type D Fault Code
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10. Type D Service Link
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11. Service Bulletin 54-12
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12. Wiring Schematic Drawing 103972
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13. Wiring Schematic Drawing 103975
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14. Wiring Schematic Drawing 104000
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15. Wiring Schematic Drawing 103996
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16. C2 Service Workshop Manual 54-01
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17. C2 Service Workshop Manual 54-02
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18. C2 Service Workshop Manual 54-11
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19. C2 Templates
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20. Wiring Schematic Drawing 132891
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21. Wiring Schematic Drawing 63504
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22. Fault Codes
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23. C2 Service Link 8051
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24. Coolants
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25. Coolant Maintenance Chart
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26. Service Bulletin 20-4
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27. Service Bulletin 20-3
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28. Product Awareness Bulletin 22
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29. HDX Electircal Guide 6002
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30. Product Awareness Bulletin 15
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31. Service Bulletin 54-15
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32. Wiring Schematic Drawings Guide 6002
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33. EF Electrical Guide 6003
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34. Diagnostic Codes Drawing 62204870
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35. Service ICU Guide 54-18
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36. Wiring Schematic Drawings Guide 6003
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37. Service Bulletin 7-13
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38. Printed Circuit Boards Electrical Guide
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39. Printed Circuit Boards Electrical Drawings
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40. Service Bulletin 7-7
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