Operation CHARM: Car repair manuals for everyone.

Pinout Values and Diagnostic Parameters








AA80E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. TCM





HINT: Each TCM terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal No. (Symbols)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration above as a reference for the TCM terminals.













(a) Using an oscilloscope, check waveform 1.










(b) Using an oscilloscope, check waveform 2.










(c) Using an oscilloscope, check waveform 3.










(d) Using an oscilloscope, check waveform 4.










(e) Using an oscilloscope, check waveform 5.










(f) Using an oscilloscope, check waveform 6.










(g) Using an oscilloscope, check waveform 7.










(h) Using an oscilloscope, check waveform 8.










(i) Using an oscilloscope, check waveform 9.










(j) Using an oscilloscope, check waveform 10.










(k) Using an oscilloscope, check waveform 11.










(l) Using an oscilloscope, check waveform 12.






2. ECM





HINT: Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal No. (Symbols)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration above as a reference for the ECM terminals.