RM38T0EC
_59
Vehicle Exterior
_114146
WIPER / WASHER
_0510034
WIPER AND WASHER SYSTEM
U
WIPER / WASHER WIPER AND WASHER SYSTEM TERMINALS OF ECU
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY
4.417,3.24 4.802,3.469
0.385,0.229
2.281,4.5 2.667,4.729
0.385,0.229
4.594,4.5 4.979,4.729
0.385,0.229
1.146,6.104 1.531,6.333
0.385,0.229
3,6.104 3.385,6.333
0.385,0.229
4.25,6.104 4.635,6.333
0.385,0.229
3.438,7.781 3.823,8.01
0.385,0.229
2.135,1.385 2.521,1.615
0.385,0.229
2.135,1.771 2.521,2
0.385,0.229
2.292,3.24 2.677,3.469
0.385,0.229
3.792,0.292 4.177,0.521
0.385,0.229
5.26,6.104 5.646,6.333
0.385,0.229
6.26,6.104 6.646,6.333
0.385,0.229
2.01,0.698 2.333,0.427
false
1.396,0.521 1.719,0.25
false
0.948,1.875 1.26,2.073
0.313,0.198
10
false
8K
0.948,2.385 1.26,2.583
0.313,0.198
10
false
8H
0.958,1.083 1.271,1.281
0.313,0.198
10
false
8F
0.958,1.583 1.271,1.781
0.313,0.198
10
false
8E
2.229,1.417 2.688,1.615
0.458,0.198
10
false
I85
2.229,1.792 2.688,1.99
0.458,0.198
10
false
I86
3.854,0.313 4.24,0.5
0.385,0.188
10
false
MB
2.396,3.26 2.865,3.469
0.469,0.208
10
false
I85
4.521,3.26 4.979,3.458
0.458,0.198
10
false
I86
3.104,6.135 3.563,6.333
0.458,0.198
10
false
8E
3.51,7.802 3.969,8
0.458,0.198
10
false
MB
2.385,0.354 2.698,0.552
0.313,0.198
10
false
*2
6.021,1.719 6.333,1.917
0.313,0.198
10
false
8B
6.031,1.135 6.344,1.333
0.313,0.198
10
false
8C
0.948,2.135 1.26,2.333
0.313,0.198
10
false
8J
4.688,4.521 5,4.719
0.313,0.198
10
false
8B
2.375,4.531 2.688,4.729
0.313,0.198
10
false
8C
1.26,6.135 1.573,6.333
0.313,0.198
10
false
8F
4.344,6.125 4.656,6.323
0.313,0.198
10
false
8K
5.344,6.125 5.656,6.323
0.313,0.198
10
false
8J
6.365,6.125 6.677,6.323
0.313,0.198
10
false
8H
1.771,0.146 2.083,0.344
0.313,0.198
10
false
*1
| *1 | Power Distribution Box Assembly | *2 | Main Body ECU (Multiplex Network Body ECU) |
a.
Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
b.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| MB-26 (BECU) - Body ground | Auxiliary battery power supply | Ignition switch off | 11 to 14 V |
| MB-27 (IGR) - Body ground | IG power source | Ignition switch off | Below 1 V |
| Ignition switch ON | 11 to 14 V | ||
| MB-13 (GND1)- Body ground | Ground | Always | Below 1 Ω |
c.
Install the main body ECU (multiplex network body ECU) to power distribution box assembly.
d.
Measure the voltage and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| I85-11 (RWRY) - Body ground | Rear wiper motor assembly operation signal | Rear wiper motor assembly stopped | 11 to 14 V |
| Rear wiper motor assembly operating | Below 1 V | ||
| 8E-5 (CXPI) - Body ground | CXPI communication line | Ignition switch ON | Pulse generation |
| Less than approximately 100 seconds after ignition switch turned off | |||
| Approximately 100 seconds or more after ignition switch turned off | 11 to 14 V | ||
| I85-6 (WPS) - Body ground | WIPER Relay operation signal | Ignition switch ON | 11 to 14 V |
| Less than approximately 60 seconds after ignition switch turned off | |||
| Approximately 60 seconds or more after ignition switch turned off | Below 1 V |
CHECK WINDSHIELD WIPER RELAY ASSEMBLY
2.833,0.25 3.25,0.5
0.417,0.25
3.75,0.25 4.167,0.5
0.417,0.25
2.927,0.292 3.24,0.49
0.313,0.198
10
false
A56
3.833,0.292 4.146,0.49
0.313,0.198
10
false
A55
a.
Disconnect the A55 and A56 windshield wiper relay assembly connectors.
b.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| A55-3 (E) - Body ground | Ground | Always | Below 1 Ω |
| A55-5 (EWS) - Body ground | Ground | Always | Below 1 Ω |
| A55-6 (IGWS) - Body ground | Washer circuit IG power source | Ignition switch off | Below 1 V |
| Ignition switch ON | 11 to 14 V | ||
| A55-8 (+B) - Body ground | Ignition switch ON signal (Power source circuit) | Ignition switch ON | 11 to 14 V |
| Less than approximately 60 seconds after ignition switch turned off | |||
| Approximately 60 seconds or more after ignition switch turned off | Below 1 V | ||
| A56-5 (ES) - Body ground | Ground | Always | Below 1 Ω |
c.
Connect the A55 and A56 windshield wiper relay assembly connectors.
d.
Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| A55-1 (+WR) - Body ground | Front washer operation signal | Ignition switch ON, front washer operating | 11 to 14 V |
| A55-2 (+1) - Body ground | LO operation signal to windshield wiper motor assembly | Ignition switch ON, windshield wiper motor assembly operating in LO | 11 to 14 V |
| A55-4 (+2) - Body ground | HI operation signal to windshield wiper motor assembly | Ignition switch ON, windshield wiper motor assembly operating in HI | 11 to 14 V |
| A55-7 (-WR) - Body ground | Ground | Always | Below 1 Ω |
| A56-3 (2S) - Body ground | Windshield wiper motor assembly HI operation signal | Windshield wiper motor assembly stopped | 4.5 to 5.5 V |
| Windshield wiper motor assembly operating in HI | Below 1 V | ||
| A56-4 (MPX1) - Body ground | CXPI communication line | Ignition switch ON | Pulse generation |
| Less than approximately 100 seconds after ignition switch turned off | |||
| Approximately 100 seconds or more after ignition switch turned off | 11 to 14 V | ||
| A56-6 (+SM) - Body ground | Windshield wiper motor assembly position detection signal | Windshield wiper motor assembly in LO or HI operation | Below 1 V ←→ 11 to 14 V |
| Windshield wiper motor assembly stopped | Below 1 V |