LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 1990 >> 929 Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - N4A-El >> Electrical Component Tests >> A/T Control Unit

A/T Control Unit

  1. Turn ignition on. Check voltage at each control unit terminal. See appropriate EC-AT CONTROL UNIT CHART. If voltage is not as specified at any terminal, repair or replace component(s), wiring or A/T control unit.
  2. Disconnect connectors at EC-AT control unit. Using an ohmmeter, connect one test lead to terminal 2S and the other to terminals 2K, 2M, 2N, 2O and 2P. See appropriate EC-AT CONTROL UNIT CHART. If continuity is present at all terminals, EC-AT is okay. If continuity is not present at any terminal, replace EC-AT.
Fig 1: EC-AT Control Unit - RX7
G93G24113Courtesy of MAZDA MOTORS CORP.
Fig 2: EC-AT Control Unit - 929
G93H24114Courtesy of MAZDA MOTORS CORP.
scientia non olet · About LEMON Manuals