UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): SHIFT LEVER: INSPECTION; 2017 - 2020 MY Sienna [08/2016

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM10000000105HE
Model Year Start: 2017	Model: Sienna	Prod Date Range: [08/2016 - ]
Title: UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): SHIFT LEVER: INSPECTION; 2017 - 2020 MY Sienna [08/2016 - ]

INSPECTION

1. INSPECT SHIFT LOCK CONTROL ECU (w/o Smart Key System)

(a) Measure the voltage according to the value(s) in the table below.

HINT:

Do not disconnect the shift lock control ECU connector.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
4 (STP) - 1 (E)	Brake pedal depressed	11 to 14 V
4 (STP) - 1 (E)	Brake pedal released	Below 1 V
5 (KLS+) - 1 (E)	Ignition switch ACC and shift lever in P	Below 1 V
	Ignition switch ACC and shift lever not in P (Within approximately 1 second)	7.5 to 10.5 V
	Ignition switch ACC and shift lever not in P (After approximately 1 second)	6 to 9 V
6 (ACC) - 1 (E)	Ignition switch ACC	11 to 14 V
	Ignition switch ON	11 to 14 V
	Ignition switch off	Below 1 V
8 (IG) - 1 (E)	Ignition switch ON*1	11 to 14 V
8 (IG) - 1 (E)	Ignition switch off	Below 1 V

*1: Vehicles with Auto Access Seats need to have the seat fully engaged (installed)

If the result is not as specified and there are no problems with the wire harness, replace the shift lock control ECU.

*a	Component with harness connected (Shift Lock Control ECU)

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Do not disconnect the shift lock control ECU connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (E) - Body ground	Always	Below 1 Ω

If the result is not as specified and there are no problems with the wire harness, replace the shift lock control ECU.

2. INSPECT SHIFT LOCK CONTROL ECU (w/ Smart Key System)

(a) Measure the voltage according to the value(s) in the table below.

HINT:

Do not disconnect the shift lock control ECU connector.

Standard Voltage:

If the result is not as specified and there are no problems with the wire harness, replace the shift lock control ECU.

*a	Component with harness connected (Shift Lock Control ECU)

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Do not disconnect the shift lock control ECU connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (E) - Body ground	Always	Below 1 Ω

If the result is not as specified and there are no problems with the wire harness, replace the shift lock control ECU.

3. INSPECT TRANSMISSION CONTROL SWITCH

(a) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection	Shift Lever Position	Specified Condition
6 (IG) - 13 (S)	S, "+" or "-"	Below 1 Ω
6 (IG) - 13 (S)	Except S, "+" and "- "	10 kΩ or higher
5 (SFTU) - 11 (E)	"+" Pressed continuously (Upshift)	Below 1 Ω
5 (SFTU) - 11 (E)	S	10 kΩ or higher
4 (SFTD) - 11 (E)	"-" Pressed continuously (Downshift)	Below 1 Ω
4 (SFTD) - 11 (E)	S	10 kΩ or higher

If the result is not as specified, replace the shift lock control unit.

*a	Component without harness connected (Transmission Control Switch)

4. INSPECT SHIFT LOCK SOLENOID

(a) Disconnect the shift lock solenoid connector of the shift lock ECU.

*a	Component without harness connected (Shift Lock Solenoid)

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection	Shift Lever Position	Specified Condition
4 (P) - 3 (E2)	P	10 kΩ or higher
4 (P) - 3 (E2)	Except P	Below 1 Ω

If the result is not as specified, replace the shift lock control unit.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (SLS+) - 2 (SLS-)	Always	112 Ω

If the result is not as specified, replace the shift lock control unit.