Gear selector position sensor - gear engaged: Notes

Fig 1: Identifying Gear Selector Position Sensor Communication Diagram (1 Of 2)

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying Gear Selector Position Sensor Communication Diagram (2 Of 2)

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The gear selector position sensor is mounted on the transmission casing. It contains the reversing light switch, starting interlock switch and switches which tell the control module which gear is engaged.

The gear selector position sensor is a position switch that is supplied with current via the +15 circuit. A number of slip contacts supply the sensor's outputs with current. Combinations of the A, B, C and PA terminals correspond to the current selector lever position (see TABLE ). The slip contacts may be either closed (=ON) or open (=OFF).

GEAR SELECTOR POSITION CHART

Lever position, Diesel	Lever position, Petrol	A	B	C	PA	TCM-signal, bus message
P	P	ON	OFF	OFF	ON	P
R	R	ON	ON	OFF	OFF	R
N	N	OFF	ON	OFF	ON	N
D	D	OFF	ON	ON	OFF	D 1-5
-	M	ON	ON	ON	ON	M 1-5
4	-	ON	ON	ON	ON	4
3	-	ON	OFF	ON	OFF	3
L	L	OFF	OFF	ON	ON	1-2

Fig 3: Connection Diagram

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The following table shows the relationship between the gear selector position sensor's internal terminals (A, B, C and PA) and the pins of connector H16-7 and those of the transmission control module.

PINOUTS REFERENCE

Gear selector position sensor terminals	A	B	C	PA
Connector H16-7, pin	3	4	5	6
Control module, pin	6 (B)	16 (B)	7 (B)	17 (B)

To ensure that the control module receives accurate information, it is important for the sensor to be correctly adjusted. Special tool 87 92 467 should be used for adjusting the sensor.