Wireless Door Lock Control System: Pre-Check

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

Using Hand-Held Tester
1. Hook up the hand-held tester to the DLC3.
2. Monitor the ECU data by following the prompts on the tester screen.
NOTE:
Hand-held tester has a "Snapshot" function which records the monitored data.

Refer to the hand-held tester operator's manual for further details.
DTC Clear
1. The DTCs and freeze frame data will be erased by the following action.
  Operate the hand-held tester to erase the codes.

Data List

NOTE: According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one of the method to shorten the labor time.

Connect the hand-held tester to the DLC3.
Turn the ignition switch ON.
According to the display on the tester, read the DATA LIST.

STANDARD (BODY ECU) DATA LIST

Item	Measurement Item/Display (Range)	Normal Condition	Diagnostic Note
KEY UNLOCK WRN SW	Key Unlock Warning SW Signal/ON Or OFF	ON: Key Is In IG Key Cylinder. OFF: Key Is Not In IG Key Cylinder	.....

Active Test
NOTE:
Performing the ACTIVE TEST using the hand-held tester allows the relay, VSV, actuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one of the method to shorten the labor time.

It is possible to display the DATA LIST during the ACTIVE TEST.
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON.
3. According to the display on tester, perform the ACTIVE TEST.
Fig 1: STANDARD (BODY ECU) ACTIVE TEST
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