Toyota Tundra Service Manual: Fuel Pump Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. REMOVE FUEL PUMP RELAY (F/PMP)

(a) Remove the fuel pump relay from the engine room relay block.

2. INSPECT FUEL PUMP RELAY

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	When no battery voltage is applied to terminals 1 and 2	10 kΩ or higher
3 - 5	When battery voltage is applied to terminals 1 and 2	Below 1 Ω

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

3. INSTALL FUEL PUMP RELAY

(a) Install the fuel pump relay to the engine room relay block.

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Toyota Tundra Owners Manual