2-1/16" STEPPER MOTOR GAUGE TROUBLESHOOTING
IDENTIFY THE GAUGE YOU HAVE
The stepper motor gauges have 2 ways to read senders
1. TRANSDUCER GAUGE: Has a 5V stud on the back. This 5V is used to power a transducer (pressure only) The transducer requires power, ground and then sends a voltage signal back to the gauge ("S") sender stud.
NOTE: The TRANSDUCER GAUGES can also read voltage inputs form self powered senders as long as th oiutput does not exceed 5V. An example would be from an O2 controller output.
2.RESISTANCE GAUGE: Does NOT have the 5V stud, reads resistance to ground via the sending unit. The "S" (sender) stud connects to the sending unit output stud or terminal.
3. VOLTMETER: Basically the same as the resistance gauge but a jumper wire is needed to apply vehicle voltage to the "S" (sender) post.
CHECK THAT YOUR DIP SWITCHES ARE IN THE CORRECT POSITION
Remove the rubber plug on the back of the gauge to inspect the DIP switch position. NOTE: the switches ON-OFF position do not always correspond with the UP direction of the gauge but rather the printing on the switch itself.
TROUBLESHOOT BY GAUGE
0-5V AND TRANSDUCER
PRESSURE (RESISTANCE)
TEMPERATURE
VOLT
FUEL
