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 > Sfi System: Camshaft Position Sensor Circuit (P0340,P0342,P0343,P0345,P0347,P0348)
DESCRIPTION The intake camshaft's Variable Valve Timing (VVT) sensor (VV1 and VV2 signal) consists of a magnet and MRE (Magnetoresistive Element). The intake camshaft has a sensor plate with 3 teeth on its outer circumference. When the intake camshaft rotates, changes occur in the air gaps between t ...

Toyota Tundra Owners Manual