Fuel Pump Resistance Test; Fuel Pump Removal - TGB EST 1000 Service Manual

▪ If battery voltage is now read, check fuel pump
ground circuit between fuel pump connector
and ECU connector.
▪ If battery voltage is still not read, check fuel
pump:
- Fuse.
- Power circuit.
- Wiring and connectors.

Fuel Pump Resistance Test

1. Remove the fuel pump connector.
2. Remove connector
3. Measure fuel pump resistance:
Pin 1 and Pin2 = 2 Ω
▪ If test failed at fuel pump connector, replace
fuel pump.
▪ If test succeeded at connector, check wiring
and connector from fuse box to ECU
connector. Repair or replace as necessary.

Fuel Pump removal

1. Release fuel pressure by running engine until
it runs out of gas.
2. Remove the body cover.
3. Disconnect fuel pump electric connector.
4. Disconnect high-pressure hose at fuel pump
using special tool as shown.
5. Remove eight fuel pump retaining bolts.
WARNING
Fuel vapors are flammable and explosive
under certain conditions. Use only
non-sparking tools.
6. Carefully pull out fuel pump.
CAUTION
While pulling out the fule pump, pay
attention to fuel sender float arm. Float arm
can get stuck and bend reducing fuel
sender accuracy.
7. Discard gasket ring.
4-1. FUEL SYSTEM
4-1-7