Fuel Pump: Inspection

INSPECT FUEL PUMP RESISTANCE
Using an ohmmeter, measure the resistance between the terminals.

Resistance: 0.2 - 3.0 Ω at 20°C (68°F)

If the resistance is not as specified, replace the fuel pump.

Fig 1: Measuring Resistance Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FUEL PUMP OPERATION
1. Connect the lead wire to the fuel pump.
2. Connect the positive (+) lead from the battery to terminal 1 of the connector, and the negative (-) lead to terminal 2. Check that the fuel pump operates.
  NOTE:
  - These tests must be done quickly (within 10 seconds) to prevent the coil from burning out.
  - Keep the fuel pump as far away from the battery as possible.
  - Always do switching at the battery side.
  If operation is not as specified, replace the fuel pump and/or read wire.
3. Disconnect the lead wire to the fuel pump.
Fig 2: Connecting Lead Wire To Fuel Pump
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002