JCB Fault Codes & Diagnostics

Search our database of common JCB fault codes and diagnostic guidance. Use these as a starting point - always confirm with official service procedures.

JCB FAQs

Q: Where is the JCB telehandler serial plate? A: Near the cab entry or chassis rails; skid steers may place it in the engine bay.

Q: Do JCB serials encode emissions tier? A: Treat serial+model together; check emissions components by year/market.

Q: DEF/AdBlue warning after storage? A: Replace with fresh DEF (32.5% urea) and verify sensors/connections.

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