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.

Toyota Tundra Service Manual > Air Conditioning System(for Automatic Air Conditioning System): Precaution
PRECAUTION 1. PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream with the ignition switch OFF to troubleshoot the CAN or LIN communication line: Connect the Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the Tec ...

Toyota Tundra Owners Manual