TM 1-1500-204-23-3 Table 2-9.  Typical Fuel System Troubleshooting Chart Trouble or symptom Isolation procedures Corrective action 1. No fuel pressure a. Use a multimeter to check Replace transmitter if indication. for defective fuel pressure defective. transmitter. b. Use a multimeter to check Replace pump if for defective fuel boost defective. pump. c. Use a multimeter to check Replace indicator if for defective fuel pressure defective. indicator. 2. No fuel flow a. Use a multimeter to check Replace transmitter if indication. for defective fuel flow defective. transmitter. b. Use a multimeter to check Replace pump if for defective fuel boost defective. pump. c. Use a multimeter to check Replace indicator if for defective fuel flow defective. indicator. 3. RH or LH NO FUEL a. Use a multimeter to check Replace pump if TRANSFER indicator for defective fuel transfer defective. illuminates pump. continuously. b. Use a multimeter to check Replace pressure switch for defective fuel transfer if defective. pump pressure switch. 4. Fuel quantity indicator a. Use a multimeter to check Check voltage at fuel gives incorrect for insufficient voltage at tank transmitter to ensure indication. fuel transmitter. 28 VDC is at transmitter. (Battery power will not always give sufficient voltage for correct indication.) b. Use a multimeter to check Replace transmitter if for defective fuel quantity defective. transmitter. c. Use a multimeter to check Replace indicator if for defective fuel quantity defective. indicator. 2-36