LIGHTING SYSTEM (for Sedan) > Door Unlock Detection Switch Circuit |
DESCRIPTION
The main body ECU detects the condition of each door unlock detection switch.WIRING DIAGRAM
INSPECTION PROCEDURE
1.READ VALUE USING TECHSTREAM |
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Main Body / Data List.
According to the display on the Techstream, read the Data List.
Main Body Tester Display Measurement Item/Range Normal Condition Diagnostic Note D-Door Lock Pos SW Driver side door unlock detection switch signal/ ON or OFF ON: Driver side door is unlocked
OFF: Driver side door is locked- P-Door Lock Pos SW Passenger side door unlock detection switch signal/ ON or OFF ON: Passenger side door is unlocked
OFF: Passenger side door is locked- RR-Door Lock Pos SW Rear door LH and RH door unlock detection switch signal/ ON or OFF ON: Rear LH or RH side door is unlocked
OFF: Rear LH and RH side door is locked- RL-Door Lock Pos SW Rear door LH and RH door unlock detection switch signal/ ON or OFF ON: Rear LH or RH side door is unlocked
OFF: Rear LH and RH side door is locked- - OK:
- Normal conditions listed above are displayed.
Result Result Proceed to OK A NG (Front door unlock detection switch does not operate) B NG (Rear door unlock detection switch does not operate) C
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A | ||
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2.INSPECT FRONT DOOR LOCK ASSEMBLY |
Inspect the front door lock assembly (Click here).
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OK | |
3.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND) |
Disconnect the G5 or F5 front door lock assembly connector.
Disconnect the D33 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
LH Tester Connection Condition Specified Condition G5-8 (LSSR) - D33-21 (LSWD) Always Below 1 Ω G5-8 (LSSR) - Body ground Always 10 kΩ or higher G5-7 (E) - Body ground Always Below 1 Ω RH Tester Connection Condition Specified Condition F5-7 (LSSR) - D33-5 (LSWP) Always Below 1 Ω F5-7 (LSSR) - Body ground Always 10 kΩ or higher F5-8 (E) - Body ground Always Below 1 Ω
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OK | ||
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4.INSPECT REAR DOOR LOCK ASSEMBLY |
Inspect the rear door lock assembly (Click here).
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OK | |
5.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR LOCK ASSEMBLY AND BODY GROUND) |
Disconnect the D33, 4E and 4S main body ECU connectors.
Disconnect the I3 or H3 rear door lock assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
LH Tester Connection Condition Specified Condition D33-24 (LSR) - I3-6 (LSSR) Always Below 1 Ω D33-24 (LSR) - Body ground Always 10 kΩ or higher 4S-1 - I3-9 (E) Always Below 1 Ω 4E-17 - Body ground Always Below 1 Ω RH Tester Connection Condition Specified Condition D33-24 (LSR) - H3-6 (LSSR) Always Below 1 Ω D33-24 (LSR) - Body ground Always 10 kΩ or higher 4S-1 - H3-9 (E) Always Below 1 Ω 4E-17 - Body ground Always Below 1 Ω
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OK | ||
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