What does SPN 2622 FMI 2 (2622/2) mean?

Hill Hold System: data erratic or intermittent.

What does SPN 2622 FMI 3 (2622/3) mean?

Hill Hold System: voltage above normal or shorted high.

SPN 2622 — Hill Hold System

Q: Can I keep driving with code SPN 2622 (Hill Hold System)?

Safe to drive. Below — how much time you have and what happens if you keep going.

Safe to driveDrivable, but watch it yourself

J1939 code SPN 2622. Below — how the fault is worded at the factory by Bendix ABS/ESP and WABCO ABS/ESC, and what the second half of the code (FMI) means in the standard.

Bendix ABS/ESP

FMI 2	HSA lamp shorted to ground or broken wire
FMI 3	HSA lamp shorted to Voltage; HSA solenoid shorted to Voltage (total shutdown); HSA solenoid shorted to Voltage (ATC & ESP shutdown)
FMI 5	HSA solenoid shorted to ground or broken wire
FMI 13	HSA solenoid shorted to Voltage

WABCO ABS/ESC

FMI 2

HSA Active Fault

What FMI means in J1939

SPN 2622 FMI 22622/2 · 2622.2	data erratic or intermittent
SPN 2622 FMI 32622/3 · 2622.3	voltage above normal or shorted high
SPN 2622 FMI 52622/5 · 2622.5	current below normal or open circuit
SPN 2622 FMI 132622/13 · 2622.13	calibration out of range

Can I keep driving

Safe to drive. Below — how much time you have and what happens if you keep going.

What happens if you keep driving

Time you have: Drivable, but watch it yourself

This is an electrical fault: an open, a short or a bad contact in the sensor circuit. The value it measures is most likely fine.

You can drive. But until the circuit is repaired this system runs blind and cannot warn you about a real failure.

Nearby: other

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