RM38N0EC
_59
Vehicle Exterior
_111846
WIPER / WASHER
_0505202
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
3.396,3.25 3.781,3.479
0.385,0.229
1.521,4.5 1.906,4.729
0.385,0.229
3.875,4.5 4.26,4.729
0.385,0.229
5.698,4.5 6.083,4.729
0.385,0.229
1.146,6.104 1.531,6.333
0.385,0.229
2.938,6.104 3.323,6.333
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
1.24,3.24 1.625,3.469
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
5.458,3.25 5.844,3.479
0.385,0.229
1.958,1.229 2.26,1.229
false
4.26,0.813 4.26,0.26
4.26,0.26 4.438,0.26
false
1.958,1.552 2.26,1.552
false
1.958,1.875 2.26,1.875
false
0.969,1.885 1.281,2.083
0.313,0.198
10
false
4H
1.167,2.385 1.479,2.583
0.313,0.198
10
false
4F
0.979,1.083 1.292,1.281
0.313,0.198
10
false
4E
0.979,1.594 1.292,1.792
0.313,0.198
10
false
4D
6.052,2.094 6.365,2.292
0.313,0.198
10
false
4A
2.333,1.49 2.792,1.688
0.458,0.198
10
false
E36
2.333,1.813 2.792,2.01
0.458,0.198
10
false
E37
4.5,0.198 4.885,0.385
0.385,0.188
10
false
MB
1.333,3.292 1.802,3.5
0.469,0.208
10
false
E37
3.49,3.292 3.948,3.49
0.458,0.198
10
false
E36
3.052,6.146 3.51,6.344
0.458,0.198
10
false
4D
5.813,4.542 6.271,4.74
0.458,0.198
10
false
4A
3.542,7.813 4,8.01
0.458,0.198
10
false
MB
6.031,1.729 6.344,1.927
0.313,0.198
10
false
4B
6.031,1.146 6.344,1.344
0.313,0.198
10
false
4C
0.969,2.146 1.281,2.344
0.313,0.198
10
false
4G
3.979,4.552 4.292,4.75
0.313,0.198
10
false
4B
1.635,4.542 1.948,4.74
0.313,0.198
10
false
4C
1.26,6.135 1.573,6.333
0.313,0.198
10
false
4E
4.365,6.146 4.677,6.344
0.313,0.198
10
false
4H
5.354,6.146 5.667,6.344
0.313,0.198
10
false
4G
6.375,6.146 6.688,6.344
0.313,0.198
10
false
4F
5.542,3.302 6,3.5
0.458,0.198
10
false
E38
2.323,1.156 2.781,1.354
0.458,0.198
10
false
E38
a.
Remove the power distribution box assembly and the main body ECU (multiplex network body ECU).
b.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
|
*1: for Gasoline Model *2: for HV Models |
|||
| 4B-36 - Body ground | Ground | Always | Below 1 Ω |
| 4C-41 - Body ground | Ground | Always | Below 1 Ω |
| 4H-1 - Body ground | Auxiliary battery power supply | Always*1
Ignition switch off*2 |
11 to 14 V |
| 4B-11 - Body ground | Ignition power supply (IG signal) | Always*1
Ignition switch off*2 |
11 to 14 V |
c.
Install the power distribution box assembly and the main body ECU (multiplex network body ECU).
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 |
|---|---|---|---|
| 4D-5 - Body ground | CXPI communication line | Ignition switch off | Below 1 V |
| Ignition switch ON | Pulse generation | ||
| E37-6 (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 | ||
| E37-11 (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 |
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 3.385,0.531
0.458,0.24
10
false
A81
3.833,0.292 4.146,0.49
0.313,0.198
10
false
A80
a.
Disconnect the A80 and A81 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 |
|---|---|---|---|
| A80-3 (E) - Body ground | Ground | Always | Below 1 Ω |
| A80-5 (EWS) - Body ground | Ground | Always | Below 1 Ω |
| A80-6 (IGWS) - Body ground | Washer circuit IG power source | Ignition switch ON | 11 to 14 V |
| A80-8 (+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 | ||
| A81-5 (ES) - Body ground | Ground | Always | Below 1 Ω |
c.
Connect the A80 and A81 windshield wiper relay assembly connectors.
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 |
|---|---|---|---|
| A80-1 (+WR) - Body ground | Front washer operation signal | Ignition switch ON, front washer operating | 11 to 14 V |
| A80-2 (+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 |
| A80-4 (+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 |
| A80-7 (-WR) - Body ground | Rear washer operation signal | Ignition switch ON, rear washer operating | 11 to 14 V |
| A81-3 (2S) - Body ground | Windshield wiper motor assembly HI operation signal | Approximately 60 seconds or more after ignition switch turned off | 4.5 to 5.5 V |
| Windshield wiper motor assembly operating in LO | 9 to 14 V | ||
| Windshield wiper motor assembly operating in HI | Below 1 V | ||
| A81-4 (MPX1) - Body ground | CXPI communication line | Ignition switch ON | Pulse generation |
| A81-6 (+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 |
CHECK RAIN SENSOR (w/ Auto Wiper System)
3.406,0.208 3.75,0.417
0.344,0.208
3.49,0.229 3.802,0.427
0.313,0.198
10
false
Q3
a.
Disconnect the Q3 rain sensor connector.
b.
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 |
|---|---|---|---|
| Q3-2 (ES) - Body ground | Ground | Always | Below 1 Ω |
| Q3-3 (MPX) - Body ground | LIN communication signal | Ignition switch ON | Pulse generation |
| Q3-4 (SIG) - Body ground | IG power source circuit | Ignition switch ON | 11 to 14 V |
CHECK COMBINATION METER ASSEMBLY