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1 Line On The Speedo

One single horizontal bar on the speedo display means you have a CAN bus fault, this can either be really easy or really hard to fix.

Modification Details




CAN Bus

The CAN (Control Area Network) bus is a simple 2 wire connection that runs between all the
major electronics in the car, it consists of a CAN high and a CAN low wire. It allows
all the electronics to talk to each other so they know what each thing is doing.



The CAN bus does a quick diagnostics on startup to make sure that all of the CAN bus nodes are functioning.
These include the SAM unit, ECU, ESP and ABS controller, Airbag controller and the speedo.

If there is a fault with one of the nodes because of a failure, fuse blowing or damaged wire, a single
line will appear on the LCD of the speedo. If you see this, thare is a chance your car won't start.

Failure Speedo Symbol

If there is a break in a wire, a connector is loose or power is lost to a part of the electronics,
you will see this symbol flashing on the speedo where the gear number is normally shown.



You may also see the fuel gauge and temperature gauge flashing depending CAN bus fault is.



Fixing The Fault

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