Vehicle Speed Sensor: Testing and Inspection
TROUBLE CODE (33) - SPEED SENSORCONTENT OF DIAGNOSIS:
Abnormal voltage input entered from speed sensor
TROUBLE SYMPTOM:
^ Erroneous idling
^ Engine stall
^ Poor driving performance
VSS Diagnostic Chart:
VSS Circuit Diagram:
1. Check voltage between ECU and body.
a) Raise vehicle and support with safety stands.
(4WD model) Ensure all four wheels are off the ground.
b) Measure voltage between ECU connector terminal and body while slowly driving wheels.
(Connector) Terminal/Specified voltage:
(B58) No.11 - Body/0 ± 5 Volts
2. Check harness connector between ECU and vehicle speed sensor.
a) Remove connector from ECU and combination meter.
b) Measure resistance between ECU connector and combination meter connector.
(Connector) Terminal/Specified resistance:
(B58) No.11 - (i13) No.1/0 Ohms
c) Measure resistance between combination meter connector and body.
(Connector) Terminal/Specified resistance:
(i13) No.1 - Body/1M Ohm min.
(i16) No.7 - body/ 0 Ohm
3. Check vehicle speed sensor.
a) Remove combination meter.
b) Insert a screwdriver into portion occupied by meter cable and rotate rotor.
c) Check that voltage across combination meter terminals deflects between 0 and 5 volts four times per gear rotation.
(Connector) Terminal/Specified voltage:
(i13) No.1 - (i16) No.7/0 <-> 5 Volts
SELECT MONITOR FUNCTION MODE - Mode: 03
Condition: While driving vehicle
Specified data: VSP F02 (Car speed) km/h