Suzuki 2000 Grand Vitara SQ625 Service Manual page 93

DTC P0500 (DTC No.24) VEHICLE SPEED SENSOR MALFUNCTION
WIRING DIAGRAM
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Vehicle speed signal not inputted although fuel is kept
cut for longer than 5 seconds.
(2 driving cycles detection logic)
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, on a level road.
NOTE:
Check to make sure that the following conditions are satisfied when using this DTC CONFIRMATION PRO-
CEDURE.
D Intake air temp.: –8_C, 18_F or higher
D Engine coolant temp.: –8 – 110_C (18 – 230_F)
D Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and warm up
engine completely.
3) Increase vehicle speed to 100 – 110 km/h (60 – 70 mph).
4) Release accelerator pedal and with engine brake applied, keep vehicle coasting and then stop vehicle.
5) Check DTC and pending DTC by using scan tool.
ENGINE DIAGNOSIS (G16 / J20 ENGINES) 6-89
TROUBLE AREA
D Vehicle speed sensor circuit open or short
D Vehicle speed sensor
D Vehicle speed sensor drive gear or driven gear
D Speedometer malfunction
D ECM (PCM)
1. Speedometer
2. To main relay
3. Vehicle speed sensor