Toyota CH-R Service Manual: Inspection

Toyota CH-R Service Manual / Supplemental Restraint Systems / Spiral Cable / 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.

Components

COMPONENTS ILLUSTRATION *1 LOWER STEERING COLUMN COVER SUB-ASSEMBLY *2 SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY *3 UPPER STEERI ...

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