Updated: 2026-11-10
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Factory tables for 62 makes: some read by the J1939 standard, others use their own dealer format. Pick a make or type a code on the homepage.
For these makes the code follows the standard: a component number plus a fault type.
These makes number faults their own way, outside the J1939 standard. Look up a code in the search on the homepage.
Cab heaters: every code has its own page with checks. Index of Eberspächer, Webasto and Planar codes.
Codes of older American and European trucks as MID, PID, SID, FMI: J1587/J1708 codes. Auxiliary heater faults in VCDS on VW, Audi, Skoda: VAG heaters, address 18.
Know the code number? Type it into the search — or paste the whole list from the scanner and we will show which fault is the real one.