RM3660EC _59 Vehicle Exterior _080767 WIPER / WASHER _0391512 WIPER AND WASHER SYSTEM(for Gasoline Model) C

WIPER / WASHER  WIPER AND WASHER SYSTEM(for Gasoline Model)  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 Priority
B235787 Wiper Module Missing Message
Detection condition:

Auxiliary battery voltage is 9.5 V or more


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

·

WIPER relay

·

Power distribution box assembly


○ Main Body A

WIRING DIAGRAM

E445707E18
0.479,4.542 1.594,5.302 1.115,0.76 10 false Windshield Wiper Relay Assembly 0.781,5.396 2.521,5.635 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 1.667,1.01 2.125,1.208 0.458,0.198 10 false A55 1.667,2.865 2.125,3.063 0.458,0.198 10 false A56 1.667,4.042 2.125,4.24 0.458,0.198 10 false A56 1.667,3.458 2.125,3.656 0.458,0.198 10 false A55 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 4.01,0.875 4.781,1.073 0.771,0.198 10 false WIPER 3.052,0.24 4.458,0.531 1.406,0.292 10 false from Auxiliary Battery 5.135,1.344 5.594,1.542 0.458,0.198 10 false I85 5.115,2.875 5.438,3.073 0.323,0.198 10 false MB 5.188,1.135 5.448,1.333 0.26,0.198 10 false 6 5.125,2.667 5.354,2.865 0.229,0.198 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 5.448,3.906 7.094,4.688 1.646,0.781 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 6.594,0.854 0.156,0.198 10 false B 2.906,1.698 3.417,2.188 0.51,0.49 10 false WIPER 2.563,0.719 2.948,0.948 0.385,0.229 10 false 3*1 2.698,1.24 3.042,1.521 0.344,0.281 10 false 1 3.51,0.729 3.979,0.948 0.469,0.219 10 false 5*1 3.51,1.24 3.813,1.531 0.302,0.292 10 false 2 3.948,3.594 5.385,4.563 1.438,0.969 10 false Power Distribution Box Assembly 3.927,2.865 4.25,3.063 0.323,0.198 10 false 10A 4.01,2.667 4.24,2.865 0.229,0.198 10 false 9 2.813,5.125 5.865,5.344 3.052,0.219 10 false *2: for TFTM Made, GTMC Made (M20C-FKS) 2.792,4.75 6.74,5.073 3.948,0.323 10 false *1: except TFTM Made, GTMC Made (M20C-FKS) 2.563,0.896 2.948,1.125 0.385,0.229 10 false 5*2 3.51,0.906 3.979,1.125 0.469,0.219 10 false 3*2

CAUTION / NOTICE / HINT

NOTICE:
·

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

·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the A56 windshield wiper relay assembly connector.


b.

Disconnect the 10A power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A56-4 (MPX1) - 10A-9 Always Below 1 Ω
A56-4 (MPX1) or 10A-9 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
a.
E445705C10
1.479,0.135 1.896,0.385 0.417,0.25 0.104,0.167 0.417,0.365 0.313,0.198 10 false *a 1.563,0.188 1.969,0.406 0.406,0.219 10 false 10A
*a Component without harness connected
(Power Distribution Box Assembly)


Check for voltage and pulses according to the value(s) in the table below.

Standard Voltage and Pulse:
Tester Connection Condition Specified Condition
10A-9 - Body ground Ignition switch ON Pulse generation
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

3.PERFORM ACTIVE TEST USING GTS

NG

12.CHECK POWER DISTRIBUTION BOX ASSEMBLY
3.PERFORM ACTIVE TEST USING GTS
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 Function to operate the WIPER relay OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Wiper Power Relay
50004 449 70
OK:

WIPER relay operates normally.



Result:
Proceed to
OK
NG



OK

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

NG

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

Disconnect the A55 windshield wiper relay assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A55-3 (E) - Body ground Always Below 1 Ω
A56-5 (ES) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE - WINDSHIELD WIPER RELAY ASSEMBLY)
a.

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

Standard Voltage:
Tester Connection Condition Specified Condition
A55-8 (+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

6.INSPECT WIPER RELAY
6.INSPECT WIPER RELAY
a.

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


E367719C06
1.146,0.948 1.313,0.49 false 1.281,1.771 1.125,1.333 false 0.802,0.99 0.969,0.531 false 0.719,1.719 0.563,1.281 false 1.323,0.302 1.635,0.5 0.313,0.198 10 false 1 1.292,1.771 1.604,1.969 0.313,0.198 10 false 2 0.969,0.344 1.281,0.542 0.313,0.198 10 false 5 0.719,1.74 1.031,1.938 0.313,0.198 10 false 3 0.073,0.073 0.385,0.229 0.313,0.156 10 false *a
*a Component without harness connected
(Windshield Wiper Relay)


Standard Resistance:
Tester Connection Condition Specified Condition
3 - 5 Auxiliary battery voltage not applied between terminals 1 and 2 10 kΩ or higher
3 - 5 Auxiliary battery voltage applied between terminals 1 and 2 Below 1 Ω


Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (POWER SOURCE - WIPER RELAY)

NG

REPLACE WIPER RELAY

7.CHECK HARNESS AND CONNECTOR (POWER SOURCE - WIPER RELAY)
a.
E445708C02
0.115,0.063 0.427,0.26 0.313,0.198 10 false *1
*1 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY


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

Standard Voltage:
except TFTM Made, GTMC Made (M20C-FKS):
Tester Connection Condition Specified Condition
5 (WIPER relay) - Body ground Ignition switch off 11 to 14 V

for TFTM Made, GTMC Made (M20C-FKS):
Tester Connection Condition Specified Condition
3 (WIPER relay) - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - WIPER RELAY)
a.

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

Standard Resistance:
except TFTM Made, GTMC Made (M20C-FKS):
Tester Connection Condition Specified Condition
A55-8 (+B) - 3 (WIPER relay) Always Below 1 Ω
A55-8 (+B) or 3 (WIPER relay) - Body ground Always 10 kΩ or higher

for TFTM Made, GTMC Made (M20C-FKS):
Tester Connection Condition Specified Condition
A55-8 (+B) - 5 (WIPER relay) Always Below 1 Ω
A55-8 (+B) or 5 (WIPER relay) - 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

9.INSPECT WIPER RELAY
a.

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


E367719C06
1.146,0.948 1.313,0.49 false 1.281,1.771 1.125,1.333 false 0.802,0.99 0.969,0.531 false 0.719,1.719 0.563,1.281 false 1.323,0.302 1.635,0.5 0.313,0.198 10 false 1 1.292,1.771 1.604,1.969 0.313,0.198 10 false 2 0.969,0.344 1.281,0.542 0.313,0.198 10 false 5 0.719,1.74 1.031,1.938 0.313,0.198 10 false 3 0.073,0.073 0.385,0.229 0.313,0.156 10 false *a
*a Component without harness connected
(Windshield Wiper Relay)


Standard Resistance:
Tester Connection Condition Specified Condition
3 - 5 Auxiliary battery voltage not applied between terminals 1 and 2 10 kΩ or higher
3 - 5 Auxiliary battery voltage applied between terminals 1 and 2 Below 1 Ω


Result:
Proceed to
OK
NG



OK

10.CHECK HARNESS AND CONNECTOR (WIPER RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE WIPER RELAY

10.CHECK HARNESS AND CONNECTOR (WIPER RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the I85 main body ECU (multiplex network body ECU) connector.


b.
E445708C02
0.115,0.063 0.427,0.26 0.313,0.198 10 false *1
*1 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY


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

Standard Resistance:
Tester Connection Condition Specified Condition
2 (WIPER relay) - I85-6 (WPS) Always Below 1 Ω
2 (WIPER relay) or I85-6 (WPS) - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG




OK

11.CHECK HARNESS AND CONNECTOR (WIPER RELAY - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (WIPER RELAY - BODY GROUND)
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition
1 (WIPER relay) - 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

12.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

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

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


b.
C434125C61
1.521,0.531 1.896,0.76 0.375,0.229 2.083,1.646 2.271,1.646 2.271,1.646 2.458,1.219 true 0.083,0.063 0.396,0.219 0.313,0.156 10 false *a 1.615,0.573 1.938,0.76 0.323,0.188 10 false MB 1.615,1.573 2.031,1.781 0.417,0.208 10 false CXP1
*a Component without harness connected
(Power Distribution Box Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
10A-9 - MB-22 (CXP1) Always Below 1 Ω
10A-9 or MB-22 (CXP1) - 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

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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