Toyota Camry Quiz
Theft deterrent & door lock

Key unlock warning system

In this manual: Theft deterrent & door lock
Introduction — 61Audio & visual system — 16Automatic transmission / trans — 19Transmission revolution (ATM) — 1Shift lock system (ATM) — 1Brake — 20Clutch — 10Communication system — 4Cooling — 15Cruise control — 3Drive shaft / propeller shaft — 9Emission control — 8Engine control system — 12Engine hood/door — 7Exhaust — 3Exterior/interior trim — 14Front suspension — 9Fuel — 12Heater & air conditioner — 16Ignition — 8Instrument panel/meter — 7Intake — 7Lighting — 11Lubrication — 16Manual transmission/transaxle — 13Parking brake — 10Power steering — 7Rear suspension — 10Seat — 12Service specifications — 26Sliding roof/convertible — 4Starting & charging — 11Starting system (2AZ−FE)(From July, 2003) — 1Starting system (1MZ−FE/3MZ−FE) — 1Steering column — 6Theft deterrent & door lock — 9Tire & wheel — 4Windshield/windowglass/mirror — 5Back window glass — 1Power window control system — 1Power mirror control system — 1Inner rear view mirror assy — 1Windshield glass — 1Wiring — 1
13steps
~78min
3/5difficulty
Done 0 of 13
PROBLEM SYMPTOMS TABLE
Symptom Suspected Area
Key reminder buzzer does not sound
  1. Unlock warning switch
  2. Front door courtesy lamp switch
  3. Instrument panel J/B (Body ECU)
  4. Combination meter
  5. Wire harness
LOCATION
ON−VEHICLE INSPECTION
ON−VEHICLE INSPECTION 1. FUNCTION CHECK

a. Check that the key reminder warning buzzer sounds.

  1. With the driver side door closed, insert the key into the ignition key cylinder, and then turn the key to LOCK or ACC.

  2. Then, check that the buzzer sounds intermittently after the driver side door is opened.

b. Check that the key reminder warning buzzer stops.

1. Check that the buzzer stops when any of the following operations is performed while the buzzer is sounding.

  • Close the driver side door (front door courtesy lamp switch is OFF).

  • Turn the ignition switch ON.

  • Pull out the key from the ignition key cylinder.

2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU) (LEFT SIDE)

  1. Disconnect the B6 body ECU connector.

  2. Check the continuity of the connector terminal.

    Standard:
Standard:
If the continuity is not as specified, there may be a

If the continuity is not as specified, there may be a malfunction on the wire harness side.

  1. Reconnect the connector.

  2. Check the voltage of the connector terminal.

Standard

:

If the value is not as specified, the instrument panel J/B may

If the value is not as specified, the instrument panel J/B may malfunction.

3. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU) (REAR SIDE)

  1. Disconnect the 2F and 2G connectors.

  2. Check the voltage or continuity between the connector terminals.

    Standard:
Standard:
If the result is not as specified, there may be a malfunction on

If the result is not as specified, there may be a malfunction on the wire harness side.

INSPECTION 1. INSPECT UN−LOCK WARNING SWITCH ASSY

a. Check the switch continuity.

Standard

:

If the continuity is not as specified, replace the switch.

If the continuity is not as specified, replace the switch.

Inspect un-lock warning switch assy Inspect un-lock warning switch assy 2. INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY

a. Check the switch continuity.

Standard

:

If the continuity is not as specified, replace the switch.

If the continuity is not as specified, replace the switch.

Inspect front door courtesy lamp switch assy Inspect front door courtesy lamp switch assy

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