SPN 1810 — Longitudinal Acceleration

Do not driveTo the nearest safe stop

J1939 code SPN 1810. Below — how the fault is worded at the factory by Meritor (ex-WABCO), and what the second half of the code (FMI) means in the standard.

Meritor (ex-WABCO)

FMI 0	Offset Failure of Longitudinal Acceleration Sensor Signal
FMI 1	Minimum Dynamic Failure/Longitudinal Acceleration
FMI 2	Plausibility Failure of Longitudinal Acceleration Sensor Signal
FMI 7	Assembly Failure of Longitudinal Acceleration Sensor
FMI 12	ESC Module Failure Flag 'Longitudinal Acceleration Sensor'

What FMI means in J1939

SPN 1810 FMI 01810/0 · 1810.0	data above normal range (most severe level)
SPN 1810 FMI 11810/1 · 1810.1	data below normal range (most severe level)
SPN 1810 FMI 21810/2 · 1810.2	data erratic or intermittent
SPN 1810 FMI 71810/7 · 1810.7	mechanical system not responding
SPN 1810 FMI 121810/12 · 1810.12	faulty device or component

Can I keep driving

Do not drive. Stop as soon as it’s safe to do so — don’t keep going.

What happens if you keep driving

Time you have: To the nearest safe stop

The code is flagged critical: the manufacturer considers it unsafe to keep driving without checking.

This code alone cannot say what will fail next, so stop at the first safe opportunity and look at it on the spot.

That said, the manufacturer flags this code as critical — if in doubt, it is safer to stop and check on the spot.

Nearby: other

• SPN 1781Retarder Minimum Continuous Speed
• SPN 1793ATC/ASR Information Signal
• SPN 1807Steering Wheel Angle
• SPN 1808Yaw Rate
• SPN 1809Lateral Acceleration
• SPN 1814VDC Fully Operational
• SPN 1820Wheelchair Ramp/Lift Position
• SPN 1837Convoy Driving Lamp Selection
• SPN 1840Rear Marker Lamp Blackout Selection
• SPN 1841Stop Lamp Blackout Selection

Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.