| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001FNI9 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: NETWORKING: LIN COMMUNICATION SYSTEM: B2325; LIN Communication Bus Malfunction; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ] | ||
|
DTC |
B2325 |
LIN Communication Bus Malfunction |
DESCRIPTION
The main body ECU (multiplex network body ECU) intermittently monitors the LIN communication bus between the components related to the doors. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the doors is detected consecutively 3 times.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B2325 |
LIN Communication Bus Malfunction |
The main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When using the Techstream with the ignition switch off to troubleshoot:
Connect the Techstream to the vehicle and turn a courtesy light switch on and off at 1.5 seconds intervals until communication between the Techstream and vehicle begins.
- When the front power window regulator motor assembly LH is removed and reinstalled or replaced, the front power window regulator motor assembly LH must be initialized.
-
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
for HV Model: Click here
![2019 MY RAV4 HV [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for Gasoline Model: Click here
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(b) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is not output |
A |
|
DTC B2325 is output |
B |
| A |
|
|
|
2. |
CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH |
(a) Disconnect the J6 front power window regulator motor assembly LH connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2321 is output |
B |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH
|
|
|
3. |
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
(a) Disconnect the J2 multiplex network master switch assembly connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B1206 and B2321 are output |
B |
| B |
|
|
|
4. |
CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH |
(a) Disconnect the I7 front power window regulator motor assembly RH connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output (w/ Hands Free Power Back Door) |
A |
|
DTC B2325 is output (w/o Hands Free Power Back Door) |
B |
|
DTC B2322 is output |
C |
| B |
|
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH
|
|
|
5. |
CHECK KICK DOOR CONTROL SENSOR |
(a) Disconnect the Q7 kick door control sensor connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B2325 is not output |
B |
| B |
|
REPLACE KICK DOOR CONTROL SENSOR
|
|
|
6. |
CHECK FOR VEHICLE TYPE |
(a) Check the vehicle type.
|
Result |
Proceed to |
|---|---|
|
Vehicle type with Sliding Roof System |
A |
|
Vehicle type with Panoramic Moon Roof System |
B |
|
Vehicle type without Sliding Roof System and Panoramic Moon Roof System |
C |
| B |
|
| C |
|
|
|
7. |
CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
(a) Disconnect the P4 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B1273 is output |
B |
| B |
|
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
|
|
8. |
CHECK HARNESS AND CONNECTOR (LIN Bus Circuit) |
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
Click here
(b) Reconnect the instrument panel junction block assembly connectors.
(c) Disconnect the J6 front power window regulator motor assembly LH connector.
(d) Disconnect the I7 front power window regulator motor assembly RH connector.
(e) Disconnect the L5 rear power window regulator motor assembly LH connector.
(f) Disconnect the K5 rear power window regulator motor assembly RH connector.
(g) w/ Sliding Roof System:
(1) Disconnect the P4 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(h) w/ Panoramic Moon Roof System:
(1) Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly) connector.
(i) w/ Hands Free Power Back Door:
(1) Disconnect the Q7 kick door control sensor connector.
(j) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-16 (LIN2) - Body ground |
Always |
10 kΩ or higher |
|
A-16 (LIN2) - Other terminals |
Always |
10 kΩ or higher |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
|
9. |
CHECK HARNESS AND CONNECTOR (LIN Bus Circuit) |
(a) Disconnect the 4D and 4H instrument panel junction block assembly connectors.
(b) Disconnect the J6 front power window regulator motor assembly LH connector.
(c) Disconnect the I7 front power window regulator motor assembly RH connector.
(d) Disconnect the L5 rear power window regulator motor assembly LH connector.
(e) Disconnect the K5 rear power window regulator motor assembly RH connector.
(f) w/ Sliding Roof System:
(1) Disconnect the P4 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(g) w/ Panoramic Moon Roof System:
(1) Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly) connector.
(h) w/ Hands Free Power Back Door:
(1) Disconnect the Q7 kick door control sensor connector.
(i) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
| *: w/ Sliding Roof System, w/ Panoramic Moon Roof System or Hands Free Power Back Door | ||
|
4D-17 - Body ground* |
Always |
10 kΩ or higher |
|
4H-25 - Body ground |
Always |
10 kΩ or higher |
|
4D-17 - Other terminals* |
Always |
10 kΩ or higher |
|
4H-25 - Other terminals |
Always |
10 kΩ or higher |
| OK |
|
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
10. |
CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
(a) Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly) connector.
(b) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs
(c) Check for DTCs.
Click here
Body Electrical > Main Body > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC B2325 is output |
A |
|
DTC B1273 is output |
B |
| A |
|
| B |
|
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
|
|
11. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH) |
(a) Disconnect the J2 multiplex network master switch assembly connector.
(b) Disconnect the J6 front power window regulator motor assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J2-16 (LIN2) - J6-9 (LIN) |
Always |
Below 1 Ω |
|
J2-16 (LIN2) or J6-9 (LIN) - Other terminals |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|