Toyota Camry (XV70): Washer Motor Circuit
DESCRIPTION
When the windshield washer motor and pump assembly receives signals from the windshield wiper switch assembly it operates to spray washer fluid from the washer nozzle sub-assemblies.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*
Click here
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- *: w/ Smart Key System
PROCEDURE
| 1. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test|
Tester Display | Measurement Item |
Control Range | Diagnostic Note |
|---|---|---|---|
|
Front Washer Relay | Function to operate the windshield washer motor and pump assembly |
OFF or ON | - |
|
Tester Display |
|---|
| Front Washer Relay |
OK:
Windshield washer motor and pump assembly operates normally.
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
.gif)
| 2. |
INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY |
(a) Remove the windshield washer motor and pump assembly.
Click here
(b) Inspect the windshield washer motor and pump assembly.
Click here
| NG | | REPLACE WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY |
|
| 3. |
INSPECT WASHER RELAY |
(a) Inspect the WASHER relay.
Click here
| NG | | REPLACE WASHER RELAY |
|
| 4. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE - WASHER RELAY) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
1 (WASHER relay) - Body ground |
Ignition switch off | Below 1 V |
|
Ignition switch ON | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 5. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE - WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A32-1 - Body ground | Ignition switch off |
Below 1 V |
|
Ignition switch ON | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 6. |
CHECK HARNESS AND CONNECTOR (WASHER RELAY - WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
5 (WASHER relay) - A32-2 |
Always | Below 1 Ω |
|
5 (WASHER relay) or A32-2 - Body ground |
Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 7. |
CHECK HARNESS AND CONNECTOR (WASHER RELAY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
3 (WASHER relay) - Body ground |
Always | Below 1 Ω |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 8. |
CHECK HARNESS AND CONNECTOR (WASHER RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the K51 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
2 (WASHER relay) - K51-12 (FWSR) |
Always | Below 1 Ω |
|
K51-12 (FWSR) or 2 (WASHER relay) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Washer Fluid Level Warning Switch Circuit
DESCRIPTION When the washer fluid level is lower than a certain level, a warning message is displayed on the combination meter assembly. WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECH
Components
COMPONENTS ILLUSTRATION
*1 LOWER STEERING COLUMN COVER SUB-ASSEMBLY
*2 UPPER STEERING COLUMN COVER
*3 WINDSHIELD WIPER SWITCH ASSEMBLY
- -
SEE MORE:
If a warning light turns
on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warnin
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Safety Connect System
DTC No. Detection Item
Link B153711
Telephone Sub Antenna Circuit Short to Ground
B153713 Telephone Sub Antenna Circuit Open
B157011 Indicator (Red) Circuit Short to Ground
