Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000025YW6
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: STEERING COLUMN: STEERING PAD SWITCH (for G16E-GTS): INSPECTION; 2023 - 2025 MY GR Corolla [09/2022 -        ]

INSPECTION

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Check the resistance.

(1) 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

CANCEL

*r

Lane Tracing Assist

*s

Cruise Control Main

*t

TSS Mode

*u

Distance Control

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (AU1) - 10 (EAU)

No switch pushed

95 to 105 kΩ

3 (AU1) - 10 (EAU)

Seek+ switch pushed

Below 2.5 Ω

3 (AU1) - 10 (EAU)

Seek- switch pushed

313 to 345 Ω

3 (AU1) - 10 (EAU)

Volume+ switch pushed

950 to 1050 Ω

3 (AU1) - 10 (EAU)

Volume- switch pushed

2955 to 3265 Ω

9 (AU2) - 10 (EAU)

No switch pushed

95 to 105 kΩ

9 (AU2) - 10 (EAU)

MODE switch pushed

Below 2.5 Ω

9 (AU2) - 10 (EAU)

On/off hook switch pushed

950 to 1050 Ω

9 (AU2) - 10 (EAU)

Voice switch pushed

2955 to 3265 Ω

5 (+DP2) - 10 (EAU)

No switch pushed

95 to 105 kΩ

5 (+DP2) - 10 (EAU)

Left switch pushed

Below 2.5 Ω

5 (+DP2) - 10 (EAU)

Up switch pushed

313 to 345 Ω

5 (+DP2) - 10 (EAU)

Down switch pushed

950 to 1050 Ω

5 (+DP2) - 10 (EAU)

Right switch pushed

2955 to 3265 Ω

4 (+DP) - 10 (EAU)

No switch pushed

95 to 105 kΩ

4 (+DP) - 10 (EAU)

OK switch pushed

Below 2.5 Ω

4 (+DP) - 10 (EAU)

Back switch pushed

313 to 345 Ω

8 (DIST) - 12 (ECC)

No switch pushed

1 MΩ or higher

8 (DIST) - 12 (ECC)

Distance control switch pushed

485 to 536 Ω

8 (DIST) - 12 (ECC)

Lane tracing assist switch pushed

114 to 126 Ω

8 (DIST) - 12 (ECC)

TSS mode switch pushed

Below 2.5 Ω

2 (CCS) - 12 (ECC)

No switch pushed

1 MΩ or higher

2 (CCS) - 12 (ECC)

Cruise control main switch pushed

Below 2.5 Ω

2 (CCS) - 12 (ECC)

CANCEL switch pushed

228 to 252 Ω

2 (CCS) - 12 (ECC)

+RES switch pushed

599 to 661 Ω

2 (CCS) - 12 (ECC)

- switch pushed

1463 to 1617 Ω

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

(b) Check the illumination.

(1) Apply auxiliary battery voltage to the steering pad switch assembly and check that the illumination.

OK:

Tester Connection

Condition

Specified Condition

1 (IL+2) - 6 (IL-2)

1 (IL+2) - Auxiliary battery positive (+)

6 (IL-2) - Auxiliary battery negative (-)

Illumination illuminates

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