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Electronic Throttle Control Relay: Inspection

  1. Measure the resistance between electronic throttle control relay terminals.
    Fig 1: Measuring Resistance Between Electronic Throttle Control Relay Terminals
    G06344745Courtesy of SUBARU OF AMERICA, INC.
    RESISTANCE REFERENCE CHART

    Terminal No. Standard
    1 and 2 1 MΩ or more
    3 and 4 93.8 - 136.4 Ω (When 20°C (68°F))
  2. Connect terminal No. 3 to the battery positive terminal and the No. 4 terminal to the battery ground terminal, and measure the resistance between the electronic throttle control relay terminals.
Fig 2: Measuring Resistance Between Electronic Throttle Control Relay Terminals
G06344746Courtesy of SUBARU OF AMERICA, INC.
RESISTANCE REFERENCE CHART

Terminal No. Standard
land 2 Less than 1 Ω