| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000014WO5 |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - ] |
| Title: WIPER / WASHER: WIPER AND WASHER SYSTEM: TERMINALS OF ECU; 2018 - 2024 MY Camry HV [07/2017 - ] | ||
TERMINALS OF ECU
CHECK WINDSHIELD WIPER MOTOR ASSEMBLY
(a) Disconnect the A31 windshield wiper motor assembly connector.
(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A31-4 (+B) - Body ground |
SB - Body ground |
Power switch on (IG) signal (Power source circuit) |
Power switch on (IG) |
11 to 14 V |
|
Less than approximately 60 seconds after power switch turned off |
||||
|
Approximately 60 seconds after power switch turned off |
Below 1 V |
|||
|
A31-1 (GND) - Body ground |
LA - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Connect the A31 windshield wiper motor assembly connector.
HINT:
Since the A31 windshield wiper motor assembly connector is a waterproof type connector, the voltage and pulses cannot be checked directly. The values listed are for reference only.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A31-3 (2S) - Body ground |
B - Body ground |
Windshield wiper motor assembly HI operation signal |
Windshield wiper motor assembly stopped |
11 to 14 V |
|
Windshield wiper motor assembly operating in HI |
Below 1 V |
|||
|
A31-2 (LIN) - Body ground |
R - Body ground |
LIN communication signal |
Power switch on (IG) |
Pulse generation |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
(a) Disconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
3B-3 - Body ground |
LA - Body ground |
Ground |
Always |
Below 1 Ω |
|
3C-1 - Body ground |
LG - Body ground |
Auxiliary battery power supply |
Power switch off |
11 to 14 V |
|
3F-1 - Body ground |
W - Body ground |
Auxiliary battery power supply |
Power switch off |
11 to 14 V |
(c) Connect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
3C-2 - Body ground |
R - Body ground |
Washer circuit IG power source |
Power switch on (IG) |
11 to 14 V |
|
K51-3 (LIN3) - Body ground |
LG - Body ground |
LIN communication line |
Power switch on (IG) |
Pulse generation |
|
K51-12 (FWSR) - Body ground |
L - Body ground |
WASHER Relay operation signal |
Power switch on (IG), front washer switch off |
11 to 14 V |
|
Power switch on (IG), front washer switch on |
Below 2 V |
|||
|
K52-21 (WPS) - Body ground |
LG - Body ground |
WIPER Relay operation signal |
Power switch on (IG) |
11 to 14 V |
|
Less than approximately 60 seconds after power switch turned off |
||||
|
Approximately 60 seconds after power switch turned off |
Below 1 V |
CHECK COMBINATION METER ASSEMBLY
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![2018 - 2019 MY Camry HV [07/2017 - 09/2019]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU](/t3Portal/stylegraphics/info.gif)
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