SPN 527 — Cruise Control States

Safe to driveUntil the next service

J1939 code SPN 527. Below — how the fault is worded at the factory by Mercedes-Benz and SITRAK, and what the second half of the code (FMI) means in the standard.

Mercedes-Benz

FMI 9

J1939 CCVS is missing or not available

SITRAK

FMI 12

Timeout of the CCVS CAN frame. Effect: Loss of communication with the modules, some functions are disabled.

What FMI means in J1939

SPN 527 FMI 9527/9 · 527.9	abnormal update rate
SPN 527 FMI 12527/12 · 527.12	faulty 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: 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 461
• SPN 470
• SPN 512Driver's Demand Engine Percent Torque
• SPN 514Nominal Friction Percent Torque
• SPN 515Engine's Desired Operating Speed
• SPN 530Engine Speed, Point 4
• SPN 533Maximum Momentary Override Speed, Point 7
• SPN 545Speed Limiter Governor Gain (Kp)
• SPN 551Idle Torque, %, Point 1
• SPN 556Retarder Reference Torque

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