CAUTION / NOTICE / HINT HINT:
PROCEDURE
HINT:
(a) Measure the battery voltage. Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. (b) Check the fuses and relays. (c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc. (d) Check the vehicle specifications.
(a) Using the Techstream, check for CAN communication system DTCs. Click here
(a) Refer to Problem Symptoms Table. Click here
(a) Operation Check Click here (b) Terminals of ECU Click here (c) Data List / Active Test Click here (d) On-vehicle Inspection
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Fuel Pump Control Circuit
DESCRIPTION The fuel pump (for low pressure side) circuit consists of the ECM, fuel pump (for low pressure side) and fuel pump control ECU (which operates the fuel pump (for low pressure side)). Based on the engine output, the ECM determines the fuel pump speed. The speed is then converted to a duty ...