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🔌 CAN Trace Help

Install CAN King, learn how to capture a trace, and decode your signals

1
Install CAN King
Download and install the CAN King software for your hardware adapter
ACTIVE
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Kvaser CAN King
Download and install instructions for Kvaser hardware users
ACTIVE
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Danfoss CAN King
Download and install instructions for Danfoss hardware users
2
How to Use CAN King
Step-by-step guide, harness connection photos, and trace capture instructions
COMING SOON
Kvaser CAN King
Setup, harness connection, and how to capture a J1939 trace
ACTIVE
Danfoss CAN King
Setup, harness connection, and how to capture a J1939 trace
3
Signal Help
Decode specific PGN signals from your CAN trace — one guided wizard per message type
CCVS — PGN FEF1 (65265)
ACTIVE
FEF1 — Brake & VBWS
Park Brake (SPN 70), Service Brake (SPN 597), Vehicle Based Wheel Speed (SPN 84)
ACTIVE
FEF1-2 — Two Speed Axle
Two Speed Axle Switch (SPN 69) — only needed on trucks equipped with a two speed axle. If unsure, skip this one.
OTHER PGNs
ACTIVE
F002 — ETC1
Transmission Shaft Speed (SPN 191)
ACTIVE
F003 — EEC2
Accelerator Pedal Position (SPN 91)
ACTIVE
F004 — EEC1
Engine RPM (SPN 190)
ACTIVE
F005 — ETC2
Selected Gear (SPN 524), Actual Gear (SPN 523)
© 2025 EZ TRAC Service & Install — CAN Trace Help