Toyota CH-R Service 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 Steering Heater

*B

w/ Steering Heater

*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.

  • w/o Steering Heater:

    Click here

  • w/ Steering Heater:

    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

F29-1 (CCS) - z4-3 (CCS)

Always

3 Ω or less

F29-2 (ECC) - z1-7 (ECC)

Always

3 Ω or less

F29-2 (ECC) - z4-4 (ECC)

Always

3 Ω or less

F29-3 (EAU) - z1-8 (EAU)

Always

3 Ω or less

F29-5 (AU2) - z1-10 (AU2)

Always

3 Ω or less

F29-6 (AU1) - z1-11 (AU1)

Always

3 Ω or less

F29-9 (HO) - z1-1 (HO)

Always

3 Ω or less

F29-10 (+DP) - z1-2 (+DP)

Always

3 Ω or less

F29-11 (+DP2) - z1-3 (+DP2)

Always

3 Ω or less

F29-12 (DIST) - z1-4 (DIST)

Always

3 Ω or less

F29-13 (IL+2) - z1-5 (IL+2)

Always

3 Ω or less

F29-14 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

F20-2 (EHT) - z6-3 (EHT)*1

Always

3 Ω or less

F20-4 (BHT) - z6-4 (BHT)*1

Always

3 Ω or less

F30-1 (D+) - z2-2 (D+)

Always

Below 1 Ω

F30-2 (D-) - z2-1 (D-)

Always

Below 1 Ω

F30-3 (D2-) - z15-1 (D2-)*2

Always

Below 1 Ω

F30-4 (D2+) - z15-2 (D2+)*2

Always

Below 1 Ω

  • *1: w/ Steering Heater
  • *2: for Dual Type

(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

F29-1 (CCS) - z4-3 (CCS)

Always

3 Ω or less

F29-2 (ECC) - z1-7 (ECC)

Always

3 Ω or less

F29-2 (ECC) - z4-4 (ECC)

Always

3 Ω or less

F29-3 (EAU) - z1-8 (EAU)

Always

3 Ω or less

F29-5 (AU2) - z1-10 (AU2)

Always

3 Ω or less

F29-6 (AU1) - z1-11 (AU1)

Always

3 Ω or less

F29-9 (HO) - z1-1 (HO)

Always

3 Ω or less

F29-10 (+DP) - z1-2 (+DP)

Always

3 Ω or less

F29-11 (+DP2) - z1-3 (+DP2)

Always

3 Ω or less

F29-12 (DIST) - z1-4 (DIST)

Always

3 Ω or less

F29-13 (IL+2) - z1-5 (IL+2)

Always

3 Ω or less

F29-14 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

F20-2 (EHT) - A-3 (EHT)*1

Always

3 Ω or less

F20-4 (BHT) - A-4 (BHT)*1

Always

3 Ω or less

F30-1 (D+) - z2-2 (D+)

Always

Below 1 Ω

F30-2 (D-) - z2-1 (D-)

Always

Below 1 Ω

F30-3 (D2-) - z15-1 (D2-)*2

Always

Below 1 Ω

F30-4 (D2+) - z15-2 (D2+)*2

Always

Below 1 Ω

  • *1: w/ Steering Heater
  • *2: for Dual Type

(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

F29-1 (CCS) - z4-3 (CCS)

Always

3 Ω or less

F29-2 (ECC) - z1-7 (ECC)

Always

3 Ω or less

F29-2 (ECC) - z4-4 (ECC)

Always

3 Ω or less

F29-3 (EAU) - z1-8 (EAU)

Always

3 Ω or less

F29-5 (AU2) - z1-10 (AU2)

Always

3 Ω or less

F29-6 (AU1) - z1-11 (AU1)

Always

3 Ω or less

F29-9 (HO) - z1-1 (HO)

Always

3 Ω or less

F29-10 (+DP) - z1-2 (+DP)

Always

3 Ω or less

F29-11 (+DP2) - z1-3 (+DP2)

Always

3 Ω or less

F29-12 (DIST) - z1-4 (DIST)

Always

3 Ω or less

F29-13 (IL+2) - z1-5 (IL+2)

Always

3 Ω or less

F29-14 (IL-2) - z1-6 (IL-2)

Always

3 Ω or less

F20-2 (EHT) - A-3 (EHT)*1

Always

3 Ω or less

F20-4 (BHT) - A-4 (BHT)*1

Always

3 Ω or less

F30-1 (D+) - z2-2 (D+)

Always

Below 1 Ω

F30-2 (D-) - z2-1 (D-)

Always

Below 1 Ω

F30-3 (D2-) - z15-1 (D2-)*2

Always

Below 1 Ω

F30-4 (D2+) - z15-2 (D2+)*2

Always

Below 1 Ω

  • *1: w/ Steering Heater
  • *2: for Dual Type

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

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