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:
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: Engine Coolant Temperature / Intake Air Temperature Correlation (P011B)
DESCRIPTION The engine has two temperature sensors, an Engine Coolant Temperature (ECT) sensor and an Intake Air Temperature (IAT) sensor, to detect temperature while the engine is in operation. A thermistor, whose resistance value varies according to temperature, is built into each sensor. When the ...
