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SPN 624 — Yellow Warning Lamp

Safe to driveDrivable, but watch it yourself

J1939 code SPN 624. Below — how the fault is worded at the factory by International, KAMAZ, MAZ and YaMZ, and what the second half of the code (FMI) means in the standard.

InternationalKAMAZMAZYaMZ

International

FMI 4Amber Warning Lamp
FMI 5Amber Warning Lamp — Amber Warning light malfunction; Amber Warning Lamp
FMI 6Amber Warning Lamp

KAMAZ

FMI 2Warning lamp
FMI 3Warning lamp
FMI 4Warning lamp
FMI 12Warning lamp

MAZ

FMI 2System diagnostic lamp driver circuit fault - Overheating. Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 3System diagnostic lamp driver circuit fault - Short to battery positive. Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 4System diagnostic lamp driver circuit fault - Short to ground. Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 12System diagnostic lamp driver circuit fault - Open circuit. Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.

YaMZ

FMI 2System diagnostic lamp driver circuit fault (Overheating). Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 3System diagnostic lamp driver circuit fault (Short to battery positive). Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 4System diagnostic lamp driver circuit fault (Short to ground). Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.
FMI 12System diagnostic lamp driver circuit fault (Open circuit). Blink code: 3-3-1. Repair: Check the system diagnostic lamp and its wiring.

What FMI means in J1939

SPN 624 FMI 2624/2 · 624.2data erratic or intermittent
SPN 624 FMI 3624/3 · 624.3voltage above normal or shorted high
SPN 624 FMI 4624/4 · 624.4voltage below normal or shorted to ground
SPN 624 FMI 5624/5 · 624.5current below normal or open circuit
SPN 624 FMI 6624/6 · 624.6current above normal or grounded circuit
SPN 624 FMI 12624/12 · 624.12faulty device or component

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.