SPN 520746 — Transmission Retarder Enable Switch (International)

Safe to driveUntil the next service

SPN 520746 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by International, and what the second half of the code (FMI) means.

International

FMI 2

Transmission Retarder Enable Switch — Transmission Retarder On/Off switch Failure

What FMI means in J1939

SPN 520746 FMI 2520746/2 · 520746.2

data erratic or intermittent

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: Until the next service

A standalone fault with no immediate consequences for driving.

Show the codes at the next service. If a second code from the same system appears, stop putting it off.

Nearby: other

• SPN 520741Transfer Case Range Switch
• SPN 520742Transfer Case Rear Driveline Solenoid Command
• SPN 520743Transmission PTO Engagement Actuator Command
• SPN 520744Transmission PTO Retention Actuator Command
• SPN 520745Transmission PTO Switch
• SPN 520747Two Speed Axle Actuator
• SPN 520748Wiper Motor Power
• SPN 520749Mirror Heater
• SPN 520750Fog Lights Left Command
• SPN 520751ICON Freedomline Gear Indicator

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