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ABS ECU Circuits

  1. Remove ABS ECU, leaving connectors attached. See ABS ECU under REMOVAL & INSTALLATION. Backprobe each terminal to measure voltage or resistance at each terminal See Fig 1. If circuit values are not as specified, check and repair or replace indicated component. See Fig 2.
  2. Unplug ABS ECU connectors. Measure resistance on wire harness side of ABS ECU connector terminals. If circuit values are not as specified, check and repair or replace indicated component. See Fig 2.
Fig 1: Identifying ABS Circuits Connectors
G93D87075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing ABS ECU Circuits
G93E87076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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