Figure 4-15 (2 dots, dash, 2 dots, dash) Temperature Sensor Defective.

TB 9-6115-642-13

TEMPERATURE SENSOR

DEFECTIVE

REPLACE HEATER

Figure 4-15 (2 dots, dash, 2 dots, dash) Temperature Sensor Defective.

FUEL PUMP SHORT-CIRCUIT

NOT OK

CHECK FUEL LEVEL

ADD FUEL

NOT OK

CHECK FOR 24VDC AT PUMP

CHECK WIRING

REPAIR WIRING

NOT OK

SEND TO NEXT HIGHER

CHANGE FUEL PUMP

MAINTENANCE

Figure 4-16 (3 dots, dash, 3 dots, dash) Fuel Pump Short-Circuit.