AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECU


  1. TCM

    A01HQEYE14

    Tech Tips

    Each TCM terminal standard voltage is shown in the table below.

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" 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.

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    E7-15 (R) - E7-8 (E1) L - BR R shift position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    Engine switch on (IG) and shift lever in any position except R Below 1 V
    E7-16 (D) - E7-8 (E1) R - BR D shift position switch signal Engine switch on (IG) and shift lever in D and S 11 to 14 V
    Engine switch on (IG) and shift lever in any position except D and S Below 1 V
    E7-12 (STP) - E7-8 (E1) GR - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    Brake pedal is released Below 1.5 V
    E7-11 (NSW) - E7-8 (E1) R - BR Park/neutral switch signal Engine switch on (IG) and shift lever in P or N Below 2 V
    Engine switch on (IG) and shift lever in any position except P or N 11 to 14 V
    E7-10 (STA) - E7-8 (E1) Y - BR Starter signal Cranking (shift lever in P or N, engine switch START) 11 to 14 V
    Engine switch on (IG) and shift lever in any position except P or N Below 2 V
    E7-3 (SPD) - E7-8 (E1) G - BR Speed signal from combination meter Vehicle driving Pulse generation
    E7-1 (BATT) - E7-8 (E1) W - BR Battery (for measuring battery voltage and for TCM memory) Always 9 to 14 V
    E7-13 (IGSW) - E7-8 (E1) B - BR IG signal Engine switch on (IG) 9 to 14 V
    E7-18 (+B) - E7-8 (E1) W - BR Power source of TCM Engine switch on (IG) 9 to 14 V
    E7-6 (CAN+) - E7-8 (E1) B - BR CAN communication line Engine switch on (IG) Pulse generation
    E7-7 (CAN-) - E7-8 (E1) Y - BR CAN communication line Engine switch on (IG) Pulse generation

  2. ECM

    Tech Tips

    Each ECM terminal standard voltage is shown in the table below.

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".

    Use the illustration below as a reference for the ECM terminals.

    A01HN0FE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A25-37 (S) - E26-49 (E1) G - BR S shift position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in any position except S Below 1 V
    A25-34 (SFTU) - E26-49 (E1) R - BR Up shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "+" (Up shift) Below 1 V
    A25-50 (SFTD) - E26-49 (E1) V - BR Down shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "-" (Down shift) Below 1 V