Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM100000000VJ9Z |
Model Year Start: 2016 |
Model: Sienna |
Prod Date Range: [12/2015 - 11/2017] |
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Sonar Main Switch Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017] |
Clearance Sonar Main Switch Circuit
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DESCRIPTION
When the clearance sonar main switch turns on, the ON signal is input into the clearance warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1.
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READ VALUE USING TECHSTREAM (CLEARANCE SONAR MAIN SWITCH)
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(a) Check the Data List for proper functioning of the clearance sonar main switch.
Intuitive P/A
Tester Display
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Measurement Item/Range
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Normal Condition
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Diagnostic Note
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Main Switch
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Clearance sonar main switch/OFF or ON
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OFF: Clearance sonar main switch off
ON: Clearance sonar main switch on
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-
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OK:
The Techstream display changes according to operation of clearance sonar main switch.
NG
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2.
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INSPECT CLEARANCE SONAR MAIN SWITCH
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(a) Remove the clearance sonar main switch (See page
).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Switch Condition
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Specified Condition
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6 (IG) - 3 (ECU)
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Clearance sonar main switch on
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Below 1 Ω
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6 (IG) - 3 (ECU)
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Clearance sonar main switch off
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10 kΩ or higher
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Text in Illustration
*a
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Component without harness connected
(Clearance Sonar Main Switch)
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OK
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|
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3.
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CHECK HARNESS AND CONNECTOR (CLEARANCE SONAR MAIN SWITCH - CLEARANCE WARNING ECU AND BATTERY)
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(a) Disconnect the D143 clearance sonar main switch connector.
(b) Disconnect the D77 clearance warning ECU connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
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Switch Condition
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Specified Condition
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D143-6 (IG) - Body ground
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Ignition switch ON
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11 to 14 V
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D143-6 (IG) - Body ground
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Ignition switch off
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Below 1 V
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(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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D143-3 (ECU) - D77-12 (CSSW)
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Always
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Below 1 Ω
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D143-3 (ECU) - Body ground
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Always
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10 kΩ or higher
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Text in Illustration
*a
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Front view of wire harness connector
(to Clearance Sonar Main Switch)
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*b
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Front view of wire harness connector
(to Clearance Warning ECU)
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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