Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Power door lock control system / All door lock and unlock do not operate by the master switch or the driver’s door key / Inspection procedure

Toyota Corolla (E120): Inspection procedure

1 Check door lock

1. When the door does not operate manually, proceed to ”a”.
2.  when the door does not operate via the key, proceed to ”b”.

2 Inspect door lock control switch

1. W/ power window: remove the power window regulator master switch assy.

1.  Inspect the master switch (door lock control switch) continuity, as shown in the illustration and table.

Standard:

2. W/o power window: remove the door lock control switch.

1.  Inspect the door lock control switch continuity, as shown in the illustration and table.

Standard:

3 Check wire harness (switch  integration relay)

1. W/ power window: disconnect the power window regulator master switch assy and integration relay connectors.

   W/o power window: disconnect the door lock control switch and integration relay connectors.

2.  check the continuity between the terminals of the power window regulator master switch assy or door lock control switch and integration relay connectors, as shown in the illustration and tables.

[W/ power window] standard (check for open):

[W/o power window] standard (check for open):

4 Inspect driver’s door lock

1. Inspect the driver’s door lock key switch.
2. inspect the driver’s door lock position switch.

5 Check wire harness (driver’s door lock  integration relay)

1. Disconnect the driver’s door lock and integration relay connectors.
2.  check the continuity between the terminals of the driver’s door lock and integration relay connectors, as shown in the illustration and table.

Standard (check for open):

Replace integration relay