Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM100000000YIZL |
Model Year Start: 2017 |
Model: Sienna |
Prod Date Range: [08/2016 -
] |
Title: UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: Transmission Control Switch Circuit; 2017 - 2020 MY Sienna [08/2016 - ] |
Transmission Control Switch Circuit
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DESCRIPTION
When the shift lever is in S and moved toward "-" or "+", it is possible to select different shift ranges (S1 to S8).
Moving the shift lever toward "+" increases the shift range by one, and moving the shift lever toward "-" decreases the shift range by one.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1.
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READ VALUE USING TECHSTREAM (SHIFT SW STATUS (S RANGE))
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(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Transmission / Data List
(e) Read the Data List according to the display on the Techstream.
Transmission
Tester Display
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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Shift SW Status (S Range)
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Sport (S) mode select switch status
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ON or OFF
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-
ON: Shift lever in S, "+" or "-"
-
OFF: Shift lever not in S, "+" or "-"
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-
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Result
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Proceed to
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Data List values are normal
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A
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Data List values are not normal
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B
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A
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|
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2.
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READ VALUE USING TECHSTREAM (SPORT SHIFT UP SW AND SPORT SHIFT DOWN SW)
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(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List
(e) Read the Data List according to the display on the Techstream.
Engine
Tester Display
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Measurement Item
|
Range
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Normal Condition
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Diagnostic Note
|
Sport Shift Up SW
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Sport shift up switch status
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ON or OFF
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-
ON: Shift lever held in "+" (Up shift)
-
OFF: Shift lever not held in "+" (Up shift)
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-
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Sport Shift Down SW
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Sport shift down switch status
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ON or OFF
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-
ON: Shift lever held in "-" (Down shift)
-
OFF: Shift lever not held in "-" (Down shift)
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-
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Result
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Proceed to
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Data List values are normal
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A
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Data List values are not normal
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B
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B
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|
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3.
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INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)
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(a) Disconnect the D41 transmission control switch connector.
(b) 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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5 (SFTU) - 11 (E)
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Shift lever held in "+" (Up shift)
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Below 1 Ω
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Shift lever not held in "+" (Up shift)
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10 kΩ or higher
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4 (SFTD) - 11 (E)
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Shift lever held in "-" (Down shift)
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Below 1 Ω
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Shift lever not held in "-" (Down shift)
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10 kΩ or higher
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|
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*a
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Component without harness connected
(Transmission Control Switch)
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|
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OK
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|
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4.
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CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)
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(a) Disconnect the transmission control switch connector.
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|
*a
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Front view of wire harness connector
(to Transmission Control Switch)
|
|
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(b) 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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D41-11 (E) - Body ground
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Always
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Below 1 Ω
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
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|
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5.
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CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)
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(a) Connect the D41 transmission control switch connector.
(b) Disconnect the A69 ECM connector.
(c) 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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A69-38 (SFTU) - Body ground
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Shift lever held in "+" (Up shift)
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Below 1 Ω
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Shift lever not held in "+" (Up shift)
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10 kΩ or higher
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A69-37 (SFTD) - Body ground
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Shift lever held in "-" (Down shift)
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Below 1 Ω
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Shift lever not held in "-" (Down shift)
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10 kΩ or higher
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)
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6.
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INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH)
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(a) Disconnect the D41 transmission control switch connector.
|
|
*a
|
Component without harness connected
(Transmission Control Switch)
|
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
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Specified Condition
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6 (IG) - 13 (S)
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Shift lever in S, "+" or "-"
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Below 1 Ω
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Shift lever not in S, "+" or "-"
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10 kΩ or higher
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OK
|
|
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7.
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CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH (POWER SOURCE))
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(a) Disconnect the transmission control switch connector.
|
|
*a
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Front view of wire harness connector
(to Transmission Control Switch)
|
|
|
(b) Turn the ignition switch to ON.
(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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D41-6 (IG) - Body ground
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Ignition switch ON
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11 to 14 V
|
NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
|
|
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8.
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CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)
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(a) Disconnect the D41 transmission control switch connector.
(b) Disconnect the A69 ECM connector.
(c) 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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D41-13 (S) - A69-17 (S)
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Always
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Below 1 Ω
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D41-13 (S) or A69-17 (S) - Body ground and other terminals
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Always
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10 kΩ or higher
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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|