Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Check that DTC 42 is not output.
1. NG : Check the RDA line.
2. OK : Go to step 2.
Check wire harness.
Preparation : Disconnect connectors of wireless door lock tuner and Body ECU.

Check : continuity between terminals PRG of wireless door lock tuner and PRG of Body ECU.

OK : Continuity.
1. NG : Repair or replace wire harness.
2. OK : Go to step 3.
Check the wireless door lock tuner.
Check : replace the wireless door lock tuner and check if it recovers normally.

OK : must be recovered normally.
1. NG : Proceed to next circuit inspection shown in problem symptoms. See PROBLEM SYMPTOMS .
2. OK : Failure of the original wireless door lock tuner.