Avalon XL V6-3.0L (1MZ-FE) (1997)
Matrix Chart of Problem Symptoms
Perform troubleshooting of the circuits for the applicable problem symptom in the order given in the chart. Proceed to the chart located for each circuit.
HINT
- Troubleshooting of the wireless door lock control system is based on the premise that the door lock control system is operating normally. Accordingly,
before troubleshooting the wireless door lock control system, first make certain that the door lock control system is operating normally.
- If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the
next highest number in the table to continue the check.
- If the trouble still reappears even through there are no abnormalities in any of the other circuits, check and replace the Wireless Door Lock ECU as the
last step.
Inspection Flow Charts
DOOR COURTESY SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The door courtesy switch comes ON when the door is opened and goes OFFwhen door is closed. Furthermore, the door courtesy switch circuit has
terminal +B connected inside the theft deterrent ECU. Battery positive voltage is applied to terminal DSWD of the wireless door lock ECU when all
doors are closed, i.e., when the door courtesy switch of all doors are OFF.