Suzuki GA413 Service Manual page 860

6-84 ENGINE GENERAL INFORMATION AND DIAGNOSIS
DTC P0500 VEHICLE SPEED SENSOR (VSS) MALFUNCTION
(DTC No.16)
CIRCUIT DESCRIPTION
DTC DETECTING CONDITION
D VSS signal not inputted while vehicle running during
fuel cut at deceleration.
: 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 acci-
dent 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) Clear DTC and warm up engine to normal operating temperature.
2) Increase vehicle speed to 50 mph, 80 km/h in 3rd gear while observing vehicle speed displayed on scan tool.
3) Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) for 4 sec.
or more.
4) Check pending DTC and DTC.
POSSIBLE CAUSE
D "BLK/YEL" circuit open
D "YEL" or "BLK/RED" circuit open or short
D VSS malfunction
D ECM malfunction
D Speedometer malfunction
1. VSS
2. Combination meter
3. VSS connector