What this code means
Modern digital tachographs use a built-in GNSS receiver to record the vehicle's position at the start and end of a shift, and at set intervals during driving. Code 82, internal GNSS fault, means the tachograph has detected an internal problem with this receiver — not simply a lost signal.
According to the manual, the severity of this fault is Medium. On a Stoneridge SE5000, the same fault is logged in the workshop diagnostic tool as DTC 000C31.
Code 82 means the GNSS receiver or antenna itself is faulty. Code 83, GNSS is missing, means the receiver is working but simply isn't getting a position signal. See the full comparison on that page.
What to do now
The manual gives one instruction for code 82:
- Acknowledge the message on the tachograph display.
- Consult an approved workshop.
If your unit is a Stoneridge SE5000: the workshop procedure for DTC 000C31 is to power-cycle the tachograph and carry out a test drive. If the fault persists, the receiver must be replaced.
Your tachograph logs this fault — TAGRA reads it
TAGRA doesn't repair a GNSS fault — only an approved workshop can replace a faulty receiver or antenna. But once code 82 is written to the tachograph's memory and to your driver card, TAGRA finds it in your downloaded data, evaluates it and documents it — exactly what you need at a roadside check, and when you raise a warranty claim with the workshop.
Stop looking up codes by hand — try TAGRA TRUCKER free for 30 daysWhy it happens
According to the manual, code 82 has three possible causes:
- an internal fault within the tachograph's own GNSS device;
- a short circuit on the external GNSS antenna, if one is fitted; or
- no connection to the external GNSS antenna.
On a Stoneridge SE5000 (DTC 000C31), the same underlying problem is described as the internal GNSS receiver having stopped providing position data.
Can you keep driving?
The manual classifies code 82 as Medium severity. It requires you to acknowledge the message and consult an approved workshop — it is not a fault that stops you where you are.
Because it affects the receiver responsible for the tachograph's position data, don't let it run indefinitely: book the workshop check promptly rather than waiting for a recurring problem to resolve itself. On a Stoneridge unit, a power-cycle and test drive is the first step; if the fault returns, the receiver needs replacing.
Also displayed as
Drivers across Europe see the same fault under different on-screen wording. These are the real search terms used for code 82:
- Defect intern GNSS 82 — Romanian
- Błąd wewnętrzny GNSS 82 — Polish
- Belső GNSS zavar 82 — Hungarian
- Falha GNSS interna 82 — Portuguese
- Fallo GNSS 82 — Spanish
- Intern GNSS fejl 82 — Danish
- Digitaler Tachograph Fehler 82 — German
Related codes
Frequently asked questions
What is the difference between code 82 and code 83?
Code 82 means the GNSS receiver or its antenna is itself faulty — an internal fault, a short circuit on the external antenna, or no connection to it. Code 83 means the receiver is working but has received no position data for three hours of cumulative driving. See GNSS is missing (code 83) for details.
Can I keep driving with an internal GNSS fault (code 82)?
The manual rates it Medium severity: acknowledge the message and consult an approved workshop. It is not a fault that requires you to stop immediately, but you should book the check promptly rather than let it recur.
What does DTC 000C31 mean on a Stoneridge SE5000?
DTC 000C31 is the Stoneridge SE5000 workshop code for an internal GNSS fault — the internal GNSS receiver has stopped providing position data. The procedure is to power-cycle the tachograph and test-drive; if the fault persists, the receiver must be replaced.
What causes an internal GNSS fault on a digital tachograph?
According to the manual, three things can trigger code 82: an internal fault in the tachograph's own GNSS device, a short circuit on the external GNSS antenna (if fitted), or no connection to the external GNSS antenna.