- Power window regulator master switch assembly
- Front power window regulator motor assembly LH
- Front power window regulator motor assembly RH
- Sliding roof drive gear sub-assembly
- Back door ECU
- Main body ECU
- Harness or connector
| Last Modified: 11-29-2007 | 1.6 C | |
| Service Category: Power Source/Network | Section: Networking | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002S8I00BX |
| Title: NETWORKING: LIN COMMUNICATION SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
DTC |
B2325 |
LIN Communication Bus Malfunction |
DESCRIPTION
The main body ECU intermittently monitors the LIN communication bus between the components related to the door and sliding roof. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the door and sliding roof is detected consecutively 3 times.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2325 |
The main body ECU (cowl side junction block LH) detects a malfunction in the LIN communication bus between components related to the doors and sliding roof consecutively 3 times. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When using the Techstream with the ignition 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:
When DTC B2325 and a LIN communication stop DTC are output simultaneously, first perform the troubleshooting for the LIN communication stop DTC. Then perform the troubleshooting for DTC B2325.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (MASTER SWITCH - REGULATOR MOTOR LH) |
|
(a) Disconnect the M2 power window regulator master switch assembly connector. |
(b) Disconnect the M3 front power window regulator motor assembly LH connector.
(c) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M2-7(LIN2) - M3-9(LIN) |
Always |
Below 1 Ω |
|
M2-7(LIN2) or M3-9(LIN) - Body ground |
Always |
10 kΩ or higher |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M2-7(LIN2) - Body ground |
Always |
Below 1 V |
(d) Reconnect the power window regulator master switch assembly connector.
(e) Reconnect the front power window regulator motor assembly LH connector.
|
|
2. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - EACH ECU) |
(a) Disconnect the H2 main body ECU connector.
(b) Disconnect the M2 power window regulator master switch assembly connector.
(c) Disconnect the L3 front power window regulator motor assembly RH connector.
(d) Disconnect the U3* sliding roof drive gear sub-assembly connector.
(e) Disconnect the V2 back door ECU connector.
(f) Measure the resistance and voltage according to the value(s) in the tables below.
HINT:
*: w/ Sliding Roof
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H2-10(LIN2) - M2-6(LIN2) |
Always |
Below 1 Ω |
|
H2-10(LIN2) - L3-9(LIN) |
||
|
H2-10(LIN2) - U3-3(MPX1)* |
||
|
H2-10(LIN2) - V2-16(MPX1) |
||
|
H2-10(LIN2) - Body ground |
Always |
10 kΩ or higher |
HINT:
*: w/ Sliding Roof
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H2-10(LIN2) - Body ground |
Always |
Below 1 V |
(g) Reconnect the main body ECU connector.
(h) Reconnect the power window regulator master switch assembly connector.
(i) Reconnect the front power window regulator motor assembly RH connector.
(j) Reconnect the sliding roof drive gear sub-assembly connector.
(k) Reconnect the back door ECU connector.
|
|
3. |
SYSTEM CHECK |
(a) Check the vehicle specifications.
Result
|
Result |
Proceed to |
|---|---|
|
Vehicle with Sliding roof |
A |
|
Vehicle without Sliding roof |
B |
|
|
4. |
CLEAR DTC |
(a) Disconnect the U3 sliding roof drive gear sub-assembly connector.
(b) Clear the DTC
.
|
|
5. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
(b) Reconnect the sliding roof driver gear sub-assembly connector.
|
|
6. |
CLEAR DTC |
(a) Disconnect the M3 power window regulator motor assembly LH connector.
(b) Clear the DTC
.
|
|
7. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
(b) Reconnect the power window regulator motor assembly LH connector.
|
|
8. |
CLEAR DTC |
(a) Disconnect the M2 power window regulator master switch assembly connector.
(b) Clear the DTC
.
|
|
9. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
(b) Reconnect the power window regulator master switch assembly connector.
|
|
10. |
CLEAR DTC |
(a) Disconnect the L3 power window regulator motor assembly RH connector.
(b) Clear the DTC
.
|
|
11. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
(b) Reconnect the power window regulator motor assembly RH connector.
|
|
12. |
CLEAR DTC |
(a) Disconnect the V2 back door ECU connector.
(b) Clear the DTC
.
|
|
13. |
CHECK FOR DTC |
(a) Recheck for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
(b) Reconnect the back door ECU connector.
|
|
|