Toyota Corolla (E120): Wiring diagram

1 Inspect terminal voltage(pi) (a) turn

  1. Turn the ignition switch to on.
  2.  measure voltage between terminal 5 (pi) of cruise control ecu assy and body ground, when the cruise control main switch button is on and off.

    Ok:

2 Inspect combination meter assy

2 Inspect combination meter assy

3 Check harness and connector(between cruise control ecu assy

3 Check harness and connector(between cruise control ecu assy and combination meter assembly)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and combination meter assembly

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

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