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Selector lever position

Fig 1: Identifying Selector Lever Position Communication Diagram (1 Of 2)
G03744016Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Identifying Selector Lever Position Communication Diagram (2 Of 2)
G03744017Courtesy of SAAB-SCANIA OF AMERICA, INC.

The TCM continuously transmits information on the bus indicating the selected "SELECTOR LEVER POSITION  " with value P, R, N, D, M, L" or respectively P, R, N, D, 4, 3, L (D223L), the value being used by both the engine control system and the MIU.

If a selector lever position other than P or N is selected, the requested air mass/combustion will be increased to compensate for the imminent load increase. This is to compensate fully for the automatic transmission's increased torque requirement and avoid a reduction in idling speed before idle speed control compensation has had time to take effect.

The main instrument unit uses "SELECTOR LEVER POSITION  " information to light up the relevant segment in the selector lever position indicator.

Fig 3: Identifying Selector Lever Position Communication Diagram
G03744018Courtesy of SAAB-SCANIA OF AMERICA, INC.

When position M is selected the main instrument panel indicates gear position 1-5, in accordance with what the driver requested with the gear change buttons on the steering wheel.

Fig 4: Connection Diagram
G03744019Courtesy of SAAB-SCANIA OF AMERICA, INC.