Specifications

Open CTM (Revision D)

Command Reference

The current OBDII transmitter protocol can be queried by using the obdsp command without parameters.

Note that option 0 (Automatic) only replaces OBD2 protocol options 1-9. Some vehicles may exhibit

problems with automatic protocol discovery. obdsp must specifically be set to match the protocol on

those vehicles.

Examples:

1. Set the OBDII transmitter to use the J1939 protocol

cmd obdsp 10

2. Query the current OBDII transmitter protocol

cmd obdsp

cmd obdsp 7

A cmd save and a power cycle are required for this command to take effect.

return to list of commands

odometer n

Sets/queries the GPS odometer.

The GPS odometer keeps track of the distance travelled in km by using GPS position data. If n is omitted,

the current value of the GPS odometer will be queried.

The maximum odometer value is 1999999 km. The odometer will roll over to 0 km when the current

odometer value exceeds the maximum.

The GPS odometer is reset to 0 km whenever one of these cases applies:

(i) n is specified as reset

(ii) n is specified as 0

(iii) cmd factory is issued.

Examples:

1. Reset the GPS odometer value to 0

cmd ctm15x

cmd odometer reset

2. Reset the GPS odometer value to 0