Toyota Corolla (E120): Inspection procedure

1 Inspect dlc3 terminal voltage

  1. Turn the ignition switch to on.
  2.  measure voltage between terminals 13 (tc) and 4 (cg) of dlc3.

    Ok: voltage: 10 – 16 v

2 Check harness and connector(between cruise control ecu assy

2 Check harness and connector(between cruise control ecu assy and dlc3)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and dlc3

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

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