| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001FJ21 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: WIPER / WASHER: WIPER AND WASHER SYSTEM: B2357; Lost Communication with Wiper Module; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ] | ||
|
DTC |
B2357 |
Lost Communication with Wiper Module |
DESCRIPTION
The main body ECU (multiplex network body ECU) and windshield wiper relay assembly communicate via CXPI communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes abnormal.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Memory |
DTC Output from |
|---|---|---|---|---|---|
|
B2357 |
Lost Communication with Wiper Module |
Detection condition:
Malfunction Status:
Malfunction Time:
|
|
○ |
Main Body |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuse of circuits related to this system before performing the following procedure.
-
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
for Gasoline Model:
Click here
![2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for HV Model:
Click here
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU]) |
(a) Disconnect the A6 windshield wiper relay assembly connector.
(b) Disconnect the G45 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A6-4 (MPX1) - G45-5 (CXP1) |
Always |
Below 1 Ω |
|
A6-4 (MPX1) or G45-5 (CXP1) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
*a |
Component without harness connected (Main Body ECU [Multiplex Network Body ECU]) |
(a) Disconnect the main body ECU (multiplex network body ECU) connector.
(b) Check for voltage and pulses according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G45-5 (CXP1) - Body ground |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
Pulse generation |
| NG |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (WIPER POWER RELAY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Wiper Power Relay |
Operates the windshield wiper relay (WIPER) |
OFF or ON |
- |
Body Electrical > Main Body > Active Test
|
Tester Display |
|---|
|
Wiper Power Relay |
OK:
Windshield wiper relay (WIPER) operates normally.
| NG |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BODY GROUND) |
|
*a |
Front view of wire harness connector (to Windshield Wiper Relay Assembly) |
- |
- |
(a) Disconnect the windshield wiper relay assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A5-3 (E) - Body ground |
Always |
Below 1 Ω |
|
A6-5 (ES) - Body ground |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BATTERY) |
|
(a) Disconnect the windshield wiper relay assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A5-8 (+B) - Body ground |
Ignition switch ON |
11 to 14 V |
|
Less than approximately 60 seconds after ignition switch turned off |
11 to 14 V |
|
|
Approximately 60 seconds or more after ignition switch turned off |
Below 1 V |
| OK |
|
|
|
6. |
INSPECT WINDSHIELD WIPER RELAY (WIPER) |
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block assembly.
(b) Inspect the windshield wiper relay (WIPER).
Click here
| NG |
|
REPLACE WINDSHIELD WIPER RELAY (WIPER) |
|
|
7. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BATTERY) |
|
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block. |
|
(b) Disconnect the A5 windshield wiper relay assembly connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
Windshield wiper relay (WIPER) terminal 5 - Body ground |
Ignition switch off |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
8. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - WINDSHIELD WIPER RELAY ASSEMBLY BODY GROUND) |
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block.
(b) Disconnect the A5 windshield wiper relay assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A5-8 (+B) - Windshield wiper relay (WIPER) terminal 3 |
Always |
Below 1 Ω |
|
A5-8 (+B) or Windshield wiper relay (WIPER) terminal 3 - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
9. |
INSPECT WINDSHIELD WIPER RELAY (WIPER) |
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block assembly.
(b) Inspect the windshield wiper relay (WIPER).
Click here
| NG |
|
REPLACE WINDSHIELD WIPER RELAY (WIPER) |
|
|
10. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU]) |
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block assembly.
(b) Disconnect the G44 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Windshield wiper relay (WIPER) terminal 1 - G44-21 (WPS) |
Always |
Below 1 Ω |
|
Windshield wiper relay (WIPER) terminal 1 or G44-21 (WPS) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
11. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BODY GROUND) |
|
(a) Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Windshield wiper relay (WIPER) terminal 1 - Body ground |
Always |
Below 1 Ω |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|