Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018NAG
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: AUDIO / VIDEO: STEERING PAD SWITCH: INSPECTION; 2018 - 2020 MY Sienna [11/2017 -        ]

INSPECTION

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY (w/ Steering Heater)

(a) Measure the resistance according to the values in the table below.

 If the result is not as specified, replace the steering pad switch assembly.

*a

Seek+ Switch

*b

Volume+ Switch

*c

Volume- Switch

*d

Seek- Switch

*e

Off Hook Switch

*f

On Hook Switch

*g

Voice Switch

*h

MODE Switch

*i

Enter Switch

*j

Left Switch

*k

Up Switch

*l

Back Switch

*m

Right Switch

*n

Top Switch

*o

Down Switch

*p

ACC Switch

*q

LDA Switch

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

11 (AU1) - 8 (EAU)

No switch is pushed

95 to 105 kΩ

Seek+ switch is pushed

Below 2.5 Ω

Seek- switch is pushed

313 to 345 Ω

Volume+ switch is pushed

950 to 1050 Ω

Volume- switch is pushed

2955 to 3265 Ω

10 (AU2) - 8 (EAU)

No switch pushed

95 to 105 kΩ

MODE switch is pushed

Below 2.5 Ω

On Hook switch is pushed

313 to 345 Ω

Off Hook switch is pushed

950 to 1050 Ω

Voice switch is pushed

2955 to 3265 Ω

3 (+DP2) - 8 (EAU)

No switch is pushed

95 to 105 kΩ

Left switch is pushed

Below 2.5 Ω

Up switch is pushed

313 to 345 Ω

Down switch is pushed

950 to 1050 Ω

Right switch is pushed

2955 to 3265 Ω

2 (+DP) - 8 (EAU)

No switch is pushed

95 to 105 kΩ

Enter switch is pushed

Below 2.5 Ω

Top switch is pushed

313 to 345 Ω

Back switch is pushed

950 to 1050 Ω

5 (DIST) - 7 (ECC)

No switch is pushed

95 to 105 kΩ

ACC switch is pushed

Below 2.5 Ω

LDA switch is pushed

228 to 252 Ω

If the result is not as specified, replace the steering pad switch assembly.

2. INSPECT STEERING PAD SWITCH ASSEMBLY (w/o Steering Heater)

(a) for Type A:

(1) Measure the resistance according to the values in the table below.

 If the result is not as specified, replace the steering pad switch assembly.

*a

Seek+ Switch

*b

Volume+ Switch

*c

Volume- Switch

*d

Seek- Switch

*e

Off Hook Switch

*f

On Hook Switch

*g

Voice Switch

*h

MODE Switch

*i

Enter Switch

*j

Left Switch

*k

Up Switch

*l

Back Switch

*m

Right Switch

*n

Top Switch

*o

Down Switch

*p

ACC Switch

*q

LDA Switch

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

10 (AU1) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Seek+ switch is pushed

Below 2.5 Ω

Seek- switch is pushed

313 to 345 Ω

Volume+ switch is pushed

950 to 1050 Ω

Volume- switch is pushed

2955 to 3265 Ω

9 (AU2) - 7 (EAU)

No switch pushed

95 to 105 kΩ

MODE switch is pushed

Below 2.5 Ω

On Hook switch is pushed

313 to 345 Ω

Off Hook switch is pushed

950 to 1050 Ω

Voice switch is pushed

2955 to 3265 Ω

3 (+DP2) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Left switch is pushed

Below 2.5 Ω

Up switch is pushed

313 to 345 Ω

Down switch is pushed

950 to 1050 Ω

Right switch is pushed

2955 to 3265 Ω

2 (+DP) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Enter switch is pushed

Below 2.5 Ω

Top switch is pushed

313 to 345 Ω

Back switch is pushed

950 to 1050 Ω

8 (DIST) - 6 (ECC)

No switch is pushed

95 to 105 kΩ

ACC switch is pushed

Below 2.5 Ω

LDA switch is pushed

228 to 252 Ω

If the result is not as specified, replace the steering pad switch assembly.

(b) for Type B:

(1) Measure the resistance according to the values in the table below.

 If the result is not as specified, replace the steering pad switch assembly.

*a

Seek+ Switch

*b

Volume+ Switch

*c

Volume- Switch

*d

Seek- Switch

*e

Off Hook Switch

*f

On Hook Switch

*g

Voice Switch

*h

MODE Switch

*i

Enter Switch

*j

Left Switch

*k

Up Switch

*l

Back Switch

*m

Right Switch

*n

Top Switch

*o

Down Switch

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

10 (AU1) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Seek+ switch is pushed

Below 2.5 Ω

Seek- switch is pushed

313 to 345 Ω

Volume+ switch is pushed

950 to 1050 Ω

Volume- switch is pushed

2955 to 3265 Ω

9 (AU2) - 7 (EAU)

No switch pushed

95 to 105 kΩ

MODE switch is pushed

Below 2.5 Ω

On Hook switch is pushed

313 to 345 Ω

Off Hook switch is pushed

950 to 1050 Ω

Voice switch is pushed

2955 to 3265 Ω

3 (+DP2) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Left switch is pushed

Below 2.5 Ω

Up switch is pushed

313 to 345 Ω

Down switch is pushed

950 to 1050 Ω

Right switch is pushed

2955 to 3265 Ω

2 (+DP) - 7 (EAU)

No switch is pushed

95 to 105 kΩ

Enter switch is pushed

Below 2.5 Ω

Top switch is pushed

313 to 345 Ω

Back switch is pushed

950 to 1050 Ω

If the result is not as specified, replace the steering pad switch assembly.