DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CLEAR DTC
CHECK FOR DTC
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR POWER WINDOW REGULATOR MOTOR RH)
CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (BATTERY VOLTAGE AND BODY GROUND)
REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH
CHECK FOR DTC
DTC B2323 Rear Door RH ECU Communication Stop
DESCRIPTION
This DTC is stored when LIN communication between the rear power window regulator motor RH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.
| DTC Code | DTC Detection Condition | Trouble Area |
| B2323 | No communication between the rear power window regulator motor RH and main body ECU (cowl side junction block LH) for 10 seconds or more. | Rear power window regulator motor RH
Main body ECU (cowl side junction block LH)
Harness or connector
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- When using the intelligent tester with the ignition switch off to troubleshoot:
- Connect the intelligent tester to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.
- DTC B2325 is stored when the communication between the rear power window regulator motor and main body ECU (cowl side junction block LH) stops.
Recheck for DTCs ().
Result| Result | Proceed to |
| DTC B2323 is output | A |
| DTC B2323 is not output | B |
| | USE SIMULATION METHOD TO CHECK ()
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| 3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR POWER WINDOW REGULATOR MOTOR RH) |
Disconnect the E3 ECU connector.
Disconnect the J4 motor connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E3-10 (LIN2) - J4-9 (LIN) | Always | Below 1 Ω |
| E3-10 (LIN2) or J4-9 (LIN) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 4.CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (BATTERY VOLTAGE AND BODY GROUND) |
Disconnect the J4 motor connector.
Measure the resistance and voltage according to the value(s) in the tables below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| J4-1 (GND) - Body ground | Always | Below 1 Ω |
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| J4-2 (B) - Body ground | Always | 11 to 14 V |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 5.REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH |
Temporarily replace the rear power window regulator motor RH with a new or normally functioning one ().
Recheck for DTCs ().
Result| Result | Proceed to |
| DTC B2323 is not output | A |
| DTC B2323 is output | B |
| | REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
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| A | |
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| END (REAR POWER WINDOW REGULATOR MOTOR RH IS DEFECTIVE) |
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