Use case
Remote diagnostics for trucks and 24 V vehicles
Remote truck diagnostics reads a 24 V commercial vehicle remotely through its diagnostic socket, usually over CAN with the SAE J1939 protocol, without taking it to the workshop.
Reviewed by Daniel Morales, founder of Reprorace SL, on
Key facts at a glance
| Protocol | Standard | J1962 pins | Speed or link | ECO-LITE | ECO-LITE TOOL | ECOPRO Gen4 |
|---|---|---|---|---|---|---|
| J1939 | SAE J1939 | 6 and 14 or 3 and 11 (the 9-pin connector needs a cable) | 250 and 500 kbit/s | Yes: reading and PassThru | Yes, in PassThru | Not stated |
| CAN | ISO 15765-4 · ISO 11898 | 6 and 14 (2nd channel on 3 and 11; classic CAN on 1 and 9) | 125, 250 and 500 kbit/s | Yes: 2 channels and pins 1/9 | Reproduces the vehicle's | Multichannel |
Data from the device catalog and the standards cited. The devices are in pre-production: figures may be adjusted after the first units have been validated.
When you need it
- A truck or bus in the fleet reports a fault far from the depot
- You want to read the active faults (DM1) before deciding on a repair
- Your workshop handles 12 and 24 V vehicles with the same device
Which Diaglana device covers it, and its limits
- ECO-LITE
- 12 and 24 V with input protection up to 36 V; J1939 over CAN at 250 or 500 kbit/s on pins 6/14 or 3/11.
- ECO-LITE TOOL
- Supplies 5 to 24 V and up to 3 A on pin 16 for your tool; 24 V needs a 100 W USB-C charger, which isn't included.
- Limits
- The devices only have the 16-pin J1962 socket: the round 9-pin connector needs an adapter cable. J1939 has been tested on a simulator; validation on trucks is under way.
Questions from professionals about this
How do you roll out remote diagnostics in a fleet?
Devices per vehicle, depot Wi-Fi, a trusted shop, informed drivers and vehicles that join and leave: how to get remote diagnostics running in a fleet.
How can a delivery fleet avoid particulate filter and DEF (AdBlue) faults?
Short trips, stops and idling punish the particulate filter and the DEF (AdBlue) system. What to watch, what to tell drivers and when to scan the vehicles.
Which diagnostic tool can I use remotely with ECO-LITE TOOL?
Tools with an OBD connector, J2534, D-PDU and RP1210 programs and OEM software: what you can use remotely with ECO-LITE TOOL and what depends on each one.
For repair shops and professionals: frequently asked questions
Questions drivers ask about this
Can you read the trouble codes of a van or a truck with an OBD scanner?
12 V vans, 24 V trucks, 16-pin or 9-pin connectors and the J1939 protocol: what changes when you read the codes of a commercial vehicle and which tool works.
What is AdBlue (DEF) and what happens if it runs out?
What AdBlue (diesel exhaust fluid, DEF) is, why diesels with SCR use it, how much they use, what happens if it runs out or freezes and how to refill it.
What is a particulate filter and how long does a regeneration take?
What the particulate filter (DPF) is, how it cleans itself, how long a regeneration usually takes, what interrupts it and when to go to a workshop.
Frequently asked questions
Can ECO-LITE handle 24 V?
Yes. It works at 12 and 24 V, and its input is protected up to 36 V.
What if the truck has no 16-pin OBD socket?
You need a cable from the 9-pin diagnostic connector to J1962. We don't include it: ask us before you buy.
Can I use my truck tool remotely?
With ECO-LITE TOOL, yes: it reproduces the truck's socket, including the pin 16 voltage up to 24 V. Final compatibility depends on each tool.
Want to try it in your workshop?
Check the device page for the full specifications, or buy in the shop at the final price.