- Front power window regulator motor LH
- Main body ECU (cowl side junction block LH)
- Harness or connector
| Last Modified: 11-27-2007 | 1.6 C | |
| Service Category: Power Source/Network | Section: Networking | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002S8J008X |
| Title: NETWORKING: LIN COMMUNICATION SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
B2321 |
Driver Side Door ECU Communication Stop |
DESCRIPTION
This DTC is stored when LIN communication between the front power window regulator motor LH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2321 |
No communication between the front power window regulator motor LH and main body ECU (cowl side junction block LH) for 10 seconds or more. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When using the Techstream with the engine switch off to troubleshoot:
Connect the Techstream to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
HINT:
DTC B2325 is stored when the communication between the front power window regulator motor LH and main body ECU (cowl side junction block LH) stops.
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTC
.
|
|
2. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2321 is output |
A |
|
DTC B2321 is not output |
B |
|
|
3. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT POWER WINDOW REGULATOR MOTOR LH) |
(a) Disconnect the E3 ECU connector.
(b) Disconnect the I12 motor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E3-10 (LIN2) - I12-9 (LIN) |
Always |
Below 1 Ω |
|
|
4. |
CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (BATTERY VOLTAGE AND BODY GROUND) |
|
(a) Disconnect the I12 motor connector. |
(b) Measure the resistance and voltage according to the value(s) in the tables below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I12-1 (GND) - Body ground |
Always |
Below 1 Ω |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I12-2 (B) - Body ground |
Always |
11 to 14 V |
|
|
5. |
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH |
(a) Temporarily replace the front power window regulator motor LH with a new or normally functioning one
.
(b) Clear the DTC
.
|
|
6. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2321 is not output |
A |
|
DTC B2321 is output |
B |
|
|
|