Suzuki Wagon R Manual page 737

7B-26 AUTOMATIC TRANSMISSION (4 A / T)
O/D
OFF
3
2. Diag. switch terminal
3. Ground terminal
DTC 21
DTC 21
O/D OFF
lamp
2 1 2
ON
OFF
1.0
3.0
0.3
0.3
4) Read DTC from flashing pattern of O/D OFF light.
5) After completing the DTC check, turn ignition switch OFF and
disconnect service wire from monitor coupler (1).
1
2
DTC21
1 2 1
3.0
Time (sec.)