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Voltage Auto Service specializes in advanced hybrid, plug-in hybrid and EV diagnostics. Schedule an appointment to have the fault properly tested before replacing parts.

2021 Toyota RAV4 Hybrid XLE – No Start With Low Voltage at Jump Terminal

  • Aug 17
  • 1 min read

CUSTOMER CONCERN

The vehicle will not power up or start. The 12-volt battery tests good, but voltage is low at the underhood jump terminal.

CAUSE

The stud at No. 3 short connector A90/Y7 was loose, creating excessive resistance and a voltage drop between the 12-volt battery and underhood power distribution.

CORRECTION

Repair and secure the loose stud at No. 3 short connector A90/Y7, then verify full battery voltage at the underhood jump terminal and normal Ready-mode operation.

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