Toyota Avalon Service & Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY

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

*a

Component without harness connected

(Steering Pad Switch Assembly)

*b

Up

*c

Down

*d

Right

*e

Left

*f

OK

*g

Back

*h

On/off Hook

*i

Voice

*j

Volume+

*k

Volume-

*l

Seek+

*m

Seek-

*n

MODE

*o

+RES

*p

-SET

*q

Cruise Control Main

*r

CANCEL

*s

Distance Control

*t

Lane Departure Alert

Standard Resistance:

Tester Connection

Condition

Specified Condition

z1-3 (AU1) - z1-10 (EAU)

No switch pushed

95 to 105 kΩ

Seek+ switch pushed

Below 2.5 Ω

Seek- switch pushed

313 to 345 Ω

Volume+ switch pushed

950 to 1050 Ω

Volume- switch pushed

2955 to 3265 Ω

z1-9 (AU2) - z1-10 (EAU)

No switch pushed

95 to 105 kΩ

MODE switch pushed

Below 2.5 Ω

On/off hook switch pushed

950 to 1050 Ω

Voice switch pushed

2955 to 3265 Ω

z1-5 (+DP2) - z1-10 (EAU)

No switch pushed

95 to 105 kΩ

Left switch pushed

Below 2.5 Ω

Up switch pushed

313 to 345 Ω

Down switch pushed

950 to 1050 Ω

Right switch pushed

2955 to 3265 Ω

z1-4 (+DP) - z1-10 (EAU)

No switch pushed

95 to 105 kΩ

OK switch pushed

Below 2.5 Ω

Back switch pushed

313 to 345 Ω

z1-8 (DIST) - z1-12 (ECC)

No switch pushed

1 MΩ or higher

Distance control switch pushed

Below 2.5 Ω

Lane departure alert switch pushed

228 to 252 Ω

z1-2 (CCS) - z1-12 (ECC)

No switch pushed

1 MΩ or higher

Cruise control main switch pushed

Below 2.5 Ω

CANCEL switch pushed

228 to 252 Ω

+RES switch pushed

599 to 661 Ω

-SET switch pushed

1463 to 1617 Ω

HINT:

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

(b) Check the illumination.

*a

Component without harness connected

(Steering Pad Switch Assembly)

-

-

(1) Connect a positive (+) lead from the auxiliary battery to terminal 1 (ILL+2) and a negative (-) lead to terminal 6 (ILL-2) of the steering pad switch assembly connector.

(2) Check that the steering pad switch assembly illumination illuminates.

OK:

The steering pad switch assembly illumination illuminates.

HINT:

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

    Components

    Installation

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