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Fuel Pump: Inspection: Inspection

INSPECT FUEL PUMP ASSEMBLY

Check the resistance.

Fig 1: Identifying Fuel Pump Assembly Connector

GTY183509

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Component without harness connected (Fuel Pump)

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	0.2 to 3.0 Ω

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

Check the operation.

Fig 2: Checking Fuel Pump Operation

GTY189761

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Component without harness connected (Fuel Pump)

Apply battery voltage between the terminals and check that the pump operates.
If the result is not as specified, replace the fuel pump and fuel pump ECU.
NOTE:
- This inspection must be done quickly (within 10 seconds) to prevent the coil from burning out.
- Keep the pump as far away from the battery as possible.
- Always do the switching (voltage on/off) at the battery terminal.
- When the pump is locked and does not operate due to foreign matter being stuck, etc., replace the fuel pump ECU. Refer to REMOVAL together with the fuel pump, as the fuel pump ECU may be damaged electrically.