Suzuki Wagon R Manual page 440

DTC P1717 A/T DRIVE RANGE (PARK/NEUTRAL POSITION) SIGNAL CIRCUIT
MALFUNCTION
CIRCUIT DESCRIPTION
From
ignition
switch
Transmission
range switch
DTC DETECTING CONDITION
D "D" range signal not inputted (Park/Neutral position signal
inputted) to ECM while vehicle running
2 driving cycle detection logic, Continuous monitoring.
DTC CONFIRMATION PROCEDURE
WARNING:
D When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.
D Road test should be carried out with 2 persons, a driver and a tester.
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Start engine and shift selector lever to "D" range.
4) Increase vehicle speed to higher than 20 mph, 32 km/h and then stop vehicle.
5) Repeat above step 4) 9 times.
6) Shift selector lever to "2" range and repeat above step 4) and 5).
7) Shift selector lever to "L" range and repeat above step 4) and 5).
8) Check DTC in "DTC" mode and pending DTC in "ON BOARD TEST" or "PENDING DTC" mode.
POSSIBLE CAUSE
D "W" circuit open
D Transmission range switch malfunction
D "R", "D", "2" or "L" range signal circuit open
D TCM power or ground circuit open
D TCM malfunction
D ECM malfunction
ENGINE DIAGNOSIS 6-101