Section 489 (Key Reminder Warning System - Diagnostics): Pre-Check
WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- USING HAND-HELD TESTER
- Hook up hand-held tester to the DLC3.
- Monitor the ECU data by following the prompts on the tester screen.
HINT:
The hand-held tester has a "Snapshot" function which records the monitored data. Refer to the hand-held tester operator's manual for further details.
- DATA LIST
HINT:
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 tester, read the DATA LIST.
Standard (Body ECU):
DATA LISTItem Measurement Item/Display (Range) x Normal Condition Diagnostic Note KEY UNLK WRN SW Key unlock warning SW signal/ ON or OFF ON: Key is in IG key cylinder
OFF: No key is in IG key cylinder- D DOOR CTY SW Driver's door courtesy SW signal/ON or OFF ON: Driver's door is open
OFF: Driver's door is closed-