TCM INSPECTION [AY6A-EL, AY6AX-EL]

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  Caution
  • Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.
  • Do not damage the terminals.

  Note
  • Use the ground of terminal A9 of the TCM connector (wiring harness-side) when measuring terminal voltage, as an error may occur when connecting the negative circuit tester to ground.
  • For the inspection on the coupler component side of the TCM, refer to the coupler component inspection. (See COUPLER COMPONENT INSPECTION [AY6A-EL, AY6AX-EL].)

1. Remove the fresh-air duct and air cleaner component as a single unit. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7].)

2. Connect the voltmeter (-) lead to body GND.

3. Measure the voltage at each terminal.

  • If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s) referring to the “Inspection item (s)” column in the “Terminal Voltage Table (Reference)”.

Terminal Voltage Table (Reference)

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Terminal | Connected to | Test condition | Voltage (V) | Inspection item (s)
--- | --- | --- | --- | ---
A1 | Battery | Under any condition | B+ | • Battery (See BATTERY INSPECTION [MZI-3.7].) • Related harness
A2 | — | — | — | —
A3 | Up switch | Selector lever up-shift position | Below 1.0 | • Up switch (See SELECTOR LEVER COMPONENT INSPECTION.) • Related harness
Except selector lever up-shift position | B+
A4 | Down switch | Selector lever down-shift position | Below 1.0 | • Down switch (See SELECTOR LEVER COMPONENT INSPECTION.) • Related harness
Except selector lever down-shift position | B+
A5 | PCM | Ignition switch ON | B+ | • PCM (See PCM INSPECTION [MZI-3.7].) • Related harness
Ignition switch off | Below 1.0
A6 | CAN_L | Because this terminal is for CAN, no valid determination of terminal voltage is possible.
A7 | M position switch | M position | Below 1.0 | • M position switch (See SELECTOR LEVER COMPONENT INSPECTION.) • Related harness
Except M position | B+
A8 | — | — | — | —
A9 | GND | Under any condition | Continuity | • Related harness
A10 | — | — | — | —
A11 | Ignition switch | Ignition switch ON | B+ | • Related harness
Ignition switch off | Below 1.0
A12 | — | — | — | —
A13 | Back-up light relay | Selector lever R position | B+ | • Back-up light relay (See RELAY INSPECTION.) • Related harness
Except selector lever R position | Below 1.0
A14 | CAN_H | Because this terminal is for CAN, no valid determination of terminal voltage is possible.
A15 | — | — | — | —
A16 | — | — | — | —