isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Diagram Information and Instructions|Page 209
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Vehicle Speed Sensor: Testing and Inspection

Fig. 12  Testing speed sensor (digital meter)

Fig. 13  Connecting circuit tester to speed sensor

Digital Meter

1.

Disconnect vehicle speed sensor to meter subassembly electrical connector, Fig. 12.

2.

Connect yellow lead of the connector to 5V power source and the blue lead to ground, Fig. 13.

3.

Connect the green lead to the positive lead of the circuit tester and the negative lead to ground.

4.

Turn the inner shaft of speedometer slowly and ensure tester indicates a continuity four times per revolution. If continuity is not as specified,
replace the speedometer.

Sensors and Switches - Emission Control Systems > < Diagram Information and Instructions|Page 209