DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
READ VALUE USING INTELLIGENT TESTER (DOOR LOCK AND UNLOCK SWITCH)
INSPECT FUSE (DOOR NO. 1, DOOR NO. 2)
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)
INSPECT DOOR CONTROL SWITCH ASSEMBLY (DOOR LOCK AND UNLOCK SWITCH)
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR CONTROL SWITCH AND BODY GROUND)
POWER DOOR LOCK CONTROL SYSTEM - All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION
The main body ECU receives switch signals from the door control switch and activates the door lock motor on each door according to these signals.
WIRING DIAGRAM
INSPECTION PROCEDURE
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
| 1.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK AND UNLOCK SWITCH) |
Use the Data List to check if the door lock and unlock switches are functioning properly.
Main Body ECU| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| Door Lock SW-Lock | Door manual lock switch signal / ON or OFF | ON: Front passenger side door control switch on (lock)
OFF: Front passenger side door control switch off | - |
| Door Unlock SW-Unlock | Door manual unlock switch signal / ON or OFF | ON: Front passenger side door control switch on (unlock)
OFF: Front passenger side door control switch off | - |
- OK:
- On the intelligent tester screen, each item changes between ON and OFF according to above chart.
| 2.INSPECT FUSE (DOOR NO. 1, DOOR NO. 2) |
Remove the DOOR NO. 1 fuse from the main body ECU (cowl side junction block LH).
Remove the DOOR NO. 2 fuse from the engine room relay block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| DOOR NO. 1 fuse | Always | Below 1 Ω |
| DOOR NO. 2 fuse | Always | Below 1 Ω |
| 3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND) |
Disconnect the 2A, 2B, and 2D ECU connectors.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| 2A-1 (ALTB) - Body ground | Always | 11 to 14 V |
| 2B-20 (BATB) - Body ground | Always | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 2D-62 (GND2) - Body ground | Always | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
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| 4.INSPECT DOOR CONTROL SWITCH ASSEMBLY (DOOR LOCK AND UNLOCK SWITCH) |
Remove the door control switch ().
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| 2 (UL) - 3 (E) | Unlock | Below 1 Ω |
2 (UL) - 3 (E)
4 (L) - 3 (E) | Off | 10 kΩ or higher |
| 4 (L) - 3 (E) | Lock | Below 1 Ω |
| | REPLACE DOOR CONTROL SWITCH ASSEMBLY ()
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| 5.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR CONTROL SWITCH AND BODY GROUND) |
Disconnect the 2D ECU connector.
Disconnect the I33 switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 2D-52 (UL1) - I33-2 (UL) | Always | Below 1 Ω |
| 2D-49 (L1) - I33-4 (L) | Always | Below 1 Ω |
| I33-3 (E) - Body ground | Always | Below 1 Ω |
| I33-2 (UL) - Body ground | Always | 10 kΩ or higher |
| I33-4 (L) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
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