TROUBLESHOOTING AND ELECTRICAL SYSTEM
Circuit Testing
Page 11-18 2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual
11
TESTING THE LOCKOUT CAM CIRCUIT
Read DANGER and WARNING on page 11-1.
A failure in the lockout cam circuit will prevent the starter from rotating. See Testing the Starter Circuit and
Generator Circuit on page 11-14.
TESTING THE FUEL GAUGE AND SENDING UNIT CIRCUIT
Read DANGER and WARNING on page 11-1.
Use the following chart (Figure 11-20) to begin troubleshooting the fuel gauge and sending unit circuit.
Figure 11-20 Testing the Fuel Gauge and Sending Unit Circuit
CHECK FUEL LEVEL
SENDING UNIT
(TEST PROCEDURE 25)
VOLTAGE READING
ABOVE 8 VOLTS
VOLTAGE READING
BELOW 8 VOLTS
VOLTAGE READINGS
CORRECT
VOLTAGE READINGS
INCORRECT
REPLACE SENDING UNIT
VOLTAGE READINGS
INCORRECT
REPLACE FUEL GAUGE
CONTINUITY OK
REPAIR OR REPLACE WIRE
NO CONTINUITY
NO READING ON
FUEL GAUGE
CHECK FUEL
GAUGE
(TEST PROCEDURE 26)
CHECK FUEL
GAUGE
(TEST PROCEDURE 26)
VOLTAGE READINGS
INCORRECT
REPLACE FUEL GAUGE
CHECK GROUND WIRE
CONTINUITY
SEE TABLE IN
(TEST PROCEDURE 25)