Toyota Avalon Service & Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT SPIRAL CABLE SUB-ASSEMBLY

NOTICE:

  • Do not remove the steering sensor from the spiral cable sub-assembly when inspecting the spiral cable sub-assembly.
  • Remove the steering sensor from the spiral cable sub-assembly only when replacing the spiral cable sub-assembly.

(a) Visually check the spiral cable sub-assembly for defects.

(1) The defects are as follows:

  • Scratches
  • Small cracks
  • Dents
  • Chips
  • Cracks or other damage to the connector

    OK:

    No defects are found.

If any of the defects is found, replace the spiral cable sub-assembly with a new one.

(b) Check the spiral cable sub-assembly.

*A

w/o Heated Steering Wheel System

*B

w/ Heated Steering Wheel System

*a

Component without harness connected

(Spiral Cable Sub-assembly)

*b

Color: Light Green

*c

Color: Black

-

-

Interlock

-

-

NOTICE:

  • When rotating the spiral cable sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
  • As the spiral cable sub-assembly may break, do not rotate the spiral cable sub-assembly more than the specified amount.

(1) Set the spiral cable sub-assembly to the center position.

Click here

(2) Measure the resistance between each terminal of the spiral cable sub-assembly according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

*: w/ Heated Steering Wheel System

G17-1 (SDN) - z2-4 (SDN)

Always

3 Ω or less

G17-8 (SUP) - z2-2 (SUP)

Always

3 Ω or less

G17-2 (ECC) - z1-12 (ECC)

Always

3 Ω or less

G17-2 (ECC) - z2-3 (ECC)

Always

3 Ω or less

G17-4 (EAU) - z1-10 (EAU)

Always

3 Ω or less

G17-5 (AU2) - z1-9 (AU2)

Always

3 Ω or less

G17-6 (DIST) - z1-8 (DIST)

Always

3 Ω or less

G17-7 (HO) - A (HO)

Always

3 Ω or less

G17-9 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

G17-10 (+DP2) - z1-5 (+DP2)

Always

3 Ω or less

G17-11 (+DP) - z1-4 (+DP)

Always

3 Ω or less

G17-12 (AU1) - z1-3 (AU1)

Always

3 Ω or less

G17-13 (CCS) - z1-2 (CCS)

Always

3 Ω or less

G17-14 (IL+2) - z1-1 (IL+2)

Always

3 Ω or less

G18-1 (D+) - z5-2 (D+)

Always

Below 1 Ω

G18-2 (D-) - z5-1 (D-)

Always

Below 1 Ω

G18-3 (D2-) - z6-1 (D2-)

Always

Below 1 Ω

G18-4 (D2+) - z6-2 (D2+)

Always

Below 1 Ω

G77-2 (EHT) - z3-1 (EHT)*

Always

Below 0.1 Ω

G77-4 (BHT) - z3-4 (BHT)*

Always

Below 0.1 Ω

(3) After setting the spiral cable sub-assembly to the center position, rotate the spiral cable sub-assembly 2.5 times clockwise, and measure the resistance according to the value(s) in the table below. Then rotate the spiral cable sub-assembly 5 times counterclockwise, and measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

*: w/ Heated Steering Wheel System

G17-1 (SDN) - z2-4 (SDN)

Always

3 Ω or less

G17-8 (SUP) - z2-2 (SUP)

Always

3 Ω or less

G17-2 (ECC) - z1-12 (ECC)

Always

3 Ω or less

G17-2 (ECC) - z2-3 (ECC)

Always

3 Ω or less

G17-4 (EAU) - z1-10 (EAU)

Always

3 Ω or less

G17-5 (AU2) - z1-9 (AU2)

Always

3 Ω or less

G17-6 (DIST) - z1-8 (DIST)

Always

3 Ω or less

G17-7 (HO) - A (HO)

Always

3 Ω or less

G17-9 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

G17-10 (+DP2) - z1-5 (+DP2)

Always

3 Ω or less

G17-11 (+DP) - z1-4 (+DP)

Always

3 Ω or less

G17-12 (AU1) - z1-3 (AU1)

Always

3 Ω or less

G17-13 (CCS) - z1-2 (CCS)

Always

3 Ω or less

G17-14 (IL+2) - z1-1 (IL+2)

Always

3 Ω or less

G18-1 (D+) - z5-2 (D+)

Always

Below 1 Ω

G18-2 (D-) - z5-1 (D-)

Always

Below 1 Ω

G18-3 (D2-) - z6-1 (D2-)

Always

Below 1 Ω

G18-4 (D2+) - z6-2 (D2+)

Always

Below 1 Ω

G77-2 (EHT) - z3-1 (EHT)*

Always

Below 0.1 Ω

G77-4 (BHT) - z3-4 (BHT)*

Always

Below 0.1 Ω

(4) After setting the spiral cable sub-assembly to the center position, rotate the spiral cable sub-assembly 2.5 times clockwise. Then while rotating the spiral cable sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

*: w/ Heated Steering Wheel System

G17-1 (SDN) - z2-4 (SDN)

Always

3 Ω or less

G17-8 (SUP) - z2-2 (SUP)

Always

3 Ω or less

G17-2 (ECC) - z1-12 (ECC)

Always

3 Ω or less

G17-2 (ECC) - z2-3 (ECC)

Always

3 Ω or less

G17-4 (EAU) - z1-10 (EAU)

Always

3 Ω or less

G17-5 (AU2) - z1-9 (AU2)

Always

3 Ω or less

G17-6 (DIST) - z1-8 (DIST)

Always

3 Ω or less

G17-7 (HO) - A (HO)

Always

3 Ω or less

G17-9 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

G17-10 (+DP2) - z1-5 (+DP2)

Always

3 Ω or less

G17-11 (+DP) - z1-4 (+DP)

Always

3 Ω or less

G17-12 (AU1) - z1-3 (AU1)

Always

3 Ω or less

G17-13 (CCS) - z1-2 (CCS)

Always

3 Ω or less

G17-14 (IL+2) - z1-1 (IL+2)

Always

3 Ω or less

G18-1 (D+) - z5-2 (D+)

Always

Below 1 Ω

G18-2 (D-) - z5-1 (D-)

Always

Below 1 Ω

G18-3 (D2-) - z6-1 (D2-)

Always

Below 1 Ω

G18-4 (D2+) - z6-2 (D2+)

Always

Below 1 Ω

G77-2 (EHT) - z3-1 (EHT)*

Always

Below 0.1 Ω

G77-4 (BHT) - z3-4 (BHT)*

Always

Below 0.1 Ω

If the result is not as specified, replace the spiral cable sub-assembly.

    Components

    Installation

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