Inspection steps
- Reading values with SSM4 (answer-back operation)
- Connect the SSM4 to the DLC3.
- Turn IG SW to ON.
- Turn on the SSM4.
- Enter the following menu. [Body Control] →[Customize]
- Referring to the table below, perform settings.
Display Initial setting Contents Setting Controller ECM [Hazard Answer Back] ON When a door is locked by wireless operation, the hazard warning lights flash once. When a door is unlocked by wireless operation, the hazard warning lights flash twice. OFF or ON Main body ECM (multiplex network body ECM) [Wireless Buzzer Resp] ON Wireless door lock buzzer response OFF or ON Main body ECM (multiplex network body ECM) [Wireless Buzzer Volume] Level 5 Wireless door lock buzzer volume Level 7, Level 6, Level 5, Level 4, Level 3, Level 2, Level 1, or Level 0 Main body ECM (multiplex network body ECM) RESULT DESCRIPTIONResult Go to Both items are ON and levels except 0 A Both items are OFF or level 0 B B: Execute the customize function.
A: Go to the next step
- Inspecting wireless door lock control function
- Inspect the wireless door lock control functions using the door control transmitter module set SUB-ASSY.
RESULT DESCRIPTIONResult Go to The wireless door lock/unlock functions operate properly. A The wireless door lock/unlock functions do not operate properly. B B: Go to "Symptom table" (refer to SYMPTOM TABLE ).
A: Go to the next step
- Checking wireless answer-back operation
- Inspect the wireless answer-back operation using the door control transmitter module set SUB-ASSY.
RESULT DESCRIPTIONResult Go to Only wireless door lock buzzer answer-back does not occur. A Only hazard warning light answer-back does not occur. B B: Go to step 8.
A: Go to the next step
- Using SSM4, perform an active test (wireless door lock buzzer).
- Connect the SSM4 to the DLC3.
- Turn IG SW to ON.
- Turn on the SSM4.
- Enter the following menu. [Body Control] →[Active Test]
- Follow the SSM4 on-screen instructions to perform an active test.
TESTER DISPLAY DESCRIPTION - MAIN BODYTester display Tested parts Control range Notes for diagnosis [Keyless Buzzer Output] Wireless door lock buzzer ON/OFF - RESULT DESCRIPTIONResult Go to Wireless door lock buzzer do not turn ON/OFF. A Wireless door lock buzzer turns ON/OFF. B B: Replacement of the main body ECM (multiplex network body ECM)
A: Go to the next step
- Inspecting wiring harness and connector (wireless door lock buzzer - main body ECM)
- Disconnect the wireless door lock buzzer connector A63.
- Disconnect the connector A73 of the main body ECM (multiplex network body ECM).
- Measure the resistance according to the following table.
STANDARD VALUE RESISTANCE SPECIFICATIONInspection terminals Inspection conditions Standard value A63-1 - A73-1 Always 1 Ωor less A63-2 - Chassis ground Always 1 Ωor less A63-1 - Chassis ground Always 10 kΩ or more NG: GRepair or replacement of wiring harness or connector
OK: Go to the next step
- Replacing wireless door lock buzzer
- Temporarily replace the wireless door lock buzzer with a new one. (Refer to REMOVAL )
- Checking wireless door lock buzzer operation
- Check the wireless answer-back function operation.
Criteria: The wireless answer-back function operates properly
NG: Replacement of the main body ECM (multiplex network body ECM)
OK: Go to the next step
Complete (Wireless door lock buzzer is faulty)
- Check the wireless answer-back function operation.
- Hazard warning light operation
- Check that the hazard warning light blinks when the hazard warning switch is pressed.
Criteria: Hazard warning light signal is normal
NG: Refer to the lighting system (SYMPTOM TABLE )
OK: Go to the next step
Replacement of the main body ECM (multiplex network body ECM)
- Check that the hazard warning light blinks when the hazard warning switch is pressed.