Power Back Door System - Power Back Door Warning Buzzer Circuit

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - DOOR / HATCH

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PBD BUZZER)

CHECK HARNESS AND CONNECTOR (POWER BACK DOOR WARNING BUZZER - POWER BACK DOOR UNIT ASSEMBLY AND BODY GROUND)

REPLACE POWER BACK DOOR WARNING BUZZER

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PBD BUZZER)

POWER BACK DOOR SYSTEM - Power Back Door Warning Buzzer Circuit

DESCRIPTION

The power back door unit assembly (power back door ECU) receives the power back door ON/OFF switch signal to sound the power back door warning buzzer.


WIRING DIAGRAM

Power Back Door System - Power Back Door Warning Buzzer Circuit. DOOR / HATCH. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PBD BUZZER)

Select the Active Test, use the intelligent tester to generate a control command, and check that the power back door warning buzzer sounds ().

Back Door
Tester DisplayTest PartControl RangeDiagnostic Note
PBD BuzzerOperate warning buzzerON / OFF-
  • OK:
  • Power back door warning buzzer sounds normally.
NG
Go to step 2
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
2.CHECK HARNESS AND CONNECTOR (POWER BACK DOOR WARNING BUZZER - POWER BACK DOOR UNIT ASSEMBLY AND BODY GROUND)

Disconnect the K47 power back door warning buzzer connector.

Disconnect the L52 power back door unit assembly connector.

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    K47-1 (BZR+) - L52-26 (BZR+)AlwaysBelow 1 Ω
    K47-2 (BZR-) - Body groundAlwaysBelow 1 Ω
    K47-1 (BZR+) - Body groundAlways10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
3.REPLACE POWER BACK DOOR WARNING BUZZER

Temporarily replace the power back door warning buzzer with a new or normally functioning one ().

NEXT
4.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PBD BUZZER)

Select the Active Test, use the intelligent tester to generate a control command, and check that the power back door warning buzzer sounds ().

Back Door
Tester DisplayTest PartControl RangeDiagnostic Note
PBD BuzzerOperate warning buzzerON / OFF-
  • OK:
  • Power back door warning buzzer sounds normally.
NG
REPLACE POWER BACK DOOR UNIT ASSEMBLY ()
OK
END (POWER BACK DOOR WARNING BUZZER IS DEFECTIVE)