Suzuki Wagon R Manual page 3390

AUTOMATIC TRANSAXLE (M13 ENGINE MODEL) 7B1-97
Transmission Range Sensor (Shift Switch)
Adjustment and Inspection
1) Shift manual select lever (4) to "N" range.
2) Check that needle direction shaped on lock washer (2) and
"N" reference line (1) on transmission range sensor are
aligned. If not, loosen sensor bolts (3) and align them.
3) Check that engine starts in "N" and "P" ranges but it does not
start in "D", "2", "L" or "R" range. Also, check that back-up
lamp lights in "R" range.
Tightening torque
Transmission range sensor bolt
(a): 5.5 N·m (0.55 kg-m, 4.0 lb-ft)
If faulty condition cannot be corrected by adjustment, disconnect
transmission range sensor connector and check that continuity
exists as shown by moving manual select lever.