RM36D0EC _59 Vehicle Exterior _083109 WIPER / WASHER _0402385 WIPER AND WASHER SYSTEM C

WIPER / WASHER  WIPER AND WASHER SYSTEM  B235787  Wiper Module Missing Message  


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
B235787 Wiper Module Missing Message
Detection condition:

Auxiliary battery voltage is 9.5 V or higher


Malfunction Status:

Communication malfunction between the main body ECU (multiplex network body ECU) and windshield wiper relay assembly


Malfunction Time:

10 seconds or more


·

Windshield wiper relay assembly

·

Main body ECU (multiplex network body ECU)

·

Harness or connector

·

Windshield wiper relay (WIPER)


○ Main Body

WIRING DIAGRAM

B582796E16
0.479,4.552 1.583,5.021 1.104,0.469 10 false Windshield Wiper Relay Assembly 0.802,5.396 2.542,5.635 1.74,0.24 10 false : CXPI Communication Line 1.313,1.021 1.625,1.219 0.313,0.198 10 false +B 1.135,2.875 1.75,3.073 0.615,0.198 10 false MPX1 1.323,4.042 1.625,4.26 0.302,0.219 10 false ES 1.385,3.469 1.542,3.667 0.156,0.198 10 false E 1.688,1 2.146,1.198 0.458,0.198 10 false A5 1.698,2.865 2.156,3.063 0.458,0.198 10 false A6 1.719,4.042 2.177,4.24 0.458,0.198 10 false A6 1.708,3.448 2.167,3.646 0.458,0.198 10 false A5 1.75,0.781 2.063,0.979 0.313,0.198 10 false 8 1.75,2.646 1.906,2.844 0.156,0.198 10 false 4 1.75,3.229 1.906,3.427 0.156,0.198 10 false 3 1.76,3.823 2.073,4.021 0.313,0.198 10 false 5 4.021,1.156 4.792,1.354 0.771,0.198 10 false WIPER 3.042,0.24 4.448,0.531 1.406,0.292 10 false from Auxiliary Battery 5.052,1.344 5.51,1.542 0.458,0.198 10 false G169 5.167,2.865 5.625,3.063 0.458,0.198 10 false A 5.167,1.135 5.479,1.333 0.313,0.198 10 false 6 5.146,2.646 5.51,2.958 0.365,0.313 10 false 22 5.49,1.24 5.948,1.438 0.458,0.198 10 false WPS 5.479,2.865 5.938,3.063 0.458,0.198 10 false CXP1 5.344,4 6.99,4.396 1.646,0.396 10 false Main Body ECU (Multiplex Network Body ECU) 6.083,0.646 6.396,0.844 0.313,0.198 10 false IG 6.438,0.656 6.677,0.875 0.24,0.219 10 false +B 2.583,1.708 3.698,2.094 1.115,0.385 10 false Windshield Wiper Relay (WIPER) 2.688,0.885 2.844,1.083 0.156,0.198 10 false 3 2.688,1.229 2.844,1.427 0.156,0.198 10 false 2 3.531,0.896 3.688,1.094 0.156,0.198 10 false 5 3.531,1.229 3.688,1.427 0.156,0.198 10 false 1 3.969,2.865 4.427,3.063 0.458,0.198 10 false 6E 4.01,2.667 4.167,2.865 0.156,0.198 10 false 5 4.24,3.573 5.396,3.969 1.156,0.396 10 false Power Distribution Box Assembly

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuse of circuits related to this system before performing the following procedure.

·

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.



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 A 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) - A-22 (CXP1) Always Below 1 Ω
A6-4 (MPX1) or A-22 (CXP1) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

2.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

6.CHECK POWER DISTRIBUTION BOX ASSEMBLY
2.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
B582797C03
1.521,0.323 1.896,0.552 0.375,0.229 0.875,1.385 1.063,1.865 1.063,1.865 1.26,1.865 true 0.083,0.063 0.396,0.219 0.313,0.156 10 false *a 1.667,0.354 2.125,0.552 0.458,0.198 10 false A 1.302,1.802 1.719,2.01 0.417,0.208 10 false CXP1
*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
A-22 (CXP1) - Body ground Ignition switch off Below 1 V
Ignition switch ON Pulse generation



Result:
Proceed to
OK
NG



OK

3.PERFORM ACTIVE TEST USING GTS (WIPER POWER RELAY)

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


3.PERFORM ACTIVE TEST USING GTS (WIPER POWER RELAY)
a.

Perform the Active Test according to the display on the GTS.

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
50004 449 70
OK:

Windshield wiper relay (WIPER) operates normally.



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BODY GROUND)

NG

10.INSPECT WINDSHIELD WIPER RELAY (WIPER)
4.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BODY GROUND)
E410610C02
2.427,0.115 2.75,0.323 0.323,0.208 4.521,0.115 4.844,0.323 0.323,0.208 3.292,0.458 3.073,0.458 3.073,0.458 2.625,0.948 true 4.406,1.25 4.073,1.469 4.073,1.469 3.854,1.469 true 2.51,0.135 2.823,0.333 0.313,0.198 10 false A5 4.594,0.135 4.906,0.333 0.313,0.198 10 false A6 3.385,0.365 3.542,0.563 0.156,0.198 10 false E 3.594,1.385 3.906,1.583 0.313,0.198 10 false ES 0.094,0.052 0.406,0.25 0.313,0.198 10 false *a
*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



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BATTERY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - BATTERY)
a.
E410611C10
1.542,0.198 1.906,0.458 0.365,0.26 2.052,1.458 2.479,1.125 2.479,1.125 2.708,1.125 true 1.625,0.24 1.938,0.438 0.313,0.198 10 false A5 2.792,1.021 3.104,1.219 0.313,0.198 10 false +B 0.125,0.104 0.5,0.344 0.375,0.24 12 false *a
*a Front view of wire harness connector
(to Windshield Wiper Relay Assembly)


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



Result:
Proceed to
OK
NG



OK

REPLACE WINDSHIELD WIPER RELAY ASSEMBLY

Click hereVehicle Exterior>WIPER / WASHER>WIPER ECU>REMOVAL


NG

7.INSPECT WINDSHIELD WIPER RELAY (WIPER)
6.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the main body ECU (multiplex network body ECU).

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Remove the power distribution box assembly from main body ECU (multiplex network body ECU).

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL

E443881C34
1.448,0.188 1.771,0.396 0.323,0.208 5.208,0.271 5.531,0.479 0.323,0.208 6.271,0.885 5.896,1.427 5.896,1.427 5.677,1.427 true 1.531,0.219 1.844,0.417 0.313,0.198 10 false 6E 5.323,0.302 5.635,0.5 0.313,0.198 10 false A 5.271,1.354 5.781,1.563 0.51,0.208 10 false CXP1 0.094,0.052 0.406,0.25 0.313,0.198 10 false *a
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
6E-5 - A-22 (CXP1) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPAIR OR REPLACE HARNESS OR CONNECTOR

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


7.INSPECT WINDSHIELD WIPER RELAY (WIPER)

Click hereVehicle Exterior>WIPER / WASHER>RELAY>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BATTERY)

NG

REPLACE WINDSHIELD WIPER RELAY (WIPER)

8.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BATTERY)
a.
B472073C10
0.094,0.042 0.406,0.198 0.313,0.156 10 false *a
*a Front view of wire harness connector
(to Windshield Wiper Relay [WIPER])


Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block assembly.


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



Result:
Proceed to
OK
NG



OK

9.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - WINDSHIELD WIPER RELAY ASSEMBLY BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.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 assembly.


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



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.INSPECT WINDSHIELD WIPER RELAY (WIPER)

Click hereVehicle Exterior>WIPER / WASHER>RELAY>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])

NG

REPLACE WINDSHIELD WIPER RELAY (WIPER)

11.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 G169 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 - G169-6 (WPS) Always Below 1 Ω
Windshield wiper relay (WIPER) terminal 1 or G169-6 (WPS) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY [WIPER] - BODY GROUND)
a.
B472073C11
0.094,0.042 0.406,0.198 0.313,0.156 10 false *a
*a Front view of wire harness connector
(to Windshield Wiper Relay [WIPER])


Remove the windshield wiper relay (WIPER) from the No. 1 engine room relay block assembly.


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 2 - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR