Toyota CH-R Service Manual: Installation

INSTALLATION

PROCEDURE

1. INSPECT SPIRAL CABLE SUB-ASSEMBLY (w/o Steering Heater)

NOTICE:

If the steering sensor is installed to a misaligned spiral cable sub-assembly, DTCs for an abnormal steering sensor value such as DTC B1801, C1231 and C1433 will be stored and it will be impossible to correct the problem. If this happens, replace the spiral cable with sensor sub-assembly with a new one.

(a) Check if the spiral cable sub-assembly is centered.

HINT:

When the spiral cable sub-assembly is centered, the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

*a

Flat Cable

(b) If the spiral cable sub-assembly is not centered, center it.

(1) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly counterclockwise slowly by hand until it stops.

NOTICE:

  • When rotating the spiral cable sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
  • Do not turn the spiral cable sub-assembly using the airbag wire harness.
  • If the spiral cable sub-assembly cannot be centered, it is possible that the spiral cable sub-assembly is broken. Replace the spiral cable sub-assembly or spiral cable with sensor sub-assembly with a new one.

*a

Interlock

(2) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly clockwise approximately 2.5 times to the position where the alignment marks are aligned and the flat cable shown in the illustration is visible.

HINT:

The spiral cable sub-assembly can be rotated approximately 2.5 turns to both the left and right from the center.

*a

Flat Cable

*b

Interlock

*c

Alignment Mark

2. INSPECT SPIRAL CABLE SUB-ASSEMBLY (w/ Steering Heater)

NOTICE:

If the steering sensor is installed to a misaligned spiral cable sub-assembly, DTCs for an abnormal steering sensor value such as DTC B1801, C1231 and C1433 will be stored and it will be impossible to correct the problem. If this happens, replace the spiral cable with sensor sub-assembly with a new one.

(a) Check if the spiral cable sub-assembly is centered.

HINT:

When the spiral cable sub-assembly is centered, the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

*a

Flat Cable

(b) If the spiral cable sub-assembly is not centered, center it.

(1) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly counterclockwise slowly by hand until it stops.

NOTICE:

  • When rotating the spiral cable sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
  • Do not turn the spiral cable sub-assembly using the airbag wire harness.
  • If the spiral cable sub-assembly cannot be centered, it is possible that the spiral cable sub-assembly is broken. Replace the spiral cable sub-assembly or spiral cable with sensor sub-assembly with a new one.

*a

Interlock

(2) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly clockwise approximately 2.5 times to the position where the alignment marks are aligned and the flat cable shown in the illustration is visible.

HINT:

The spiral cable sub-assembly can be rotated approximately 2.5 turns to both the left and right from the center.

*a

Flat Cable

*b

Interlock

*c

Alignment Mark

3. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

NOTICE:

  • Do not replace the spiral cable with sensor sub-assembly with the battery connected and the ignition switch ON.
  • Do not rotate the spiral cable with sensor sub-assembly without the steering wheel assembly installed, with the battery connected and the ignition switch ON.
  • Ensure that the steering wheel assembly is installed and aligned straight when inspecting the steering sensor.

(a) Check that the ignition switch off.

(b) Check that the cable is disconnected from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Check that the front wheels are aligned facing straight ahead.

(d) Engage the claws to install the spiral cable with sensor sub-assembly.

(e) Connect each connector.

4. INSTALL UPPER STEERING COLUMN COVER

Click here

5. INSTALL LOWER STEERING COLUMN COVER SUB-ASSEMBLY

Click here

6. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

7. INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY (w/o Steering Heater)

NOTICE:

Do not adjust the spiral cable with sensor sub-assembly with the battery connected and the ignition switch ON.

(a) Check that the ignition switch off.

(b) Check that the cable is disconnected from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Check if the spiral cable with sensor sub-assembly is centered.

HINT:

When the spiral cable with sensor sub-assembly is centered, the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

*a

Flat Cable

(d) If the spiral cable with sensor sub-assembly is not centered, center it.

(1) While pushing on the interlock shown in the illustration, rotate the spiral cable with sensor sub-assembly counterclockwise slowly by hand until it stops.

NOTICE:

  • When rotating the spiral cable with sensor sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
  • Do not turn the spiral cable with sensor sub-assembly using the airbag wire harness.

*a

Interlock

(2) While pushing on the interlock shown in the illustration, rotate the spiral cable with sensor sub-assembly clockwise approximately 2.5 times to the position where the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

HINT:

The spiral cable with sensor sub-assembly can be rotated approximately 2.5 times to both the left and right from the center.

*a

Interlock

*b

Flat Cable

8. INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY (w/ Steering Heater)

NOTICE:

Do not adjust the spiral cable with sensor sub-assembly with the battery connected and the ignition switch ON.

(a) Check that the ignition switch off.

(b) Check that the cable is disconnected from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Check if the spiral cable with sensor sub-assembly is centered.

HINT:

When the spiral cable with sensor sub-assembly is centered, the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

*a

Flat Cable

(d) If the spiral cable with sensor sub-assembly is not centered, center it.

(1) While pushing on the interlock shown in the illustration, rotate the spiral cable with sensor sub-assembly counterclockwise slowly by hand until it stops.

NOTICE:

  • When rotating the spiral cable with sensor sub-assembly, make sure to push on the interlock shown in the illustration to release the interlock mechanism.
  • Do not turn the spiral cable with sensor sub-assembly using the airbag wire harness.

*a

Interlock

(2) While pushing on the interlock shown in the illustration, rotate the spiral cable with sensor sub-assembly clockwise approximately 2.5 times to the position where the part (A) is positioned at the top and the flat cable shown in the illustration is visible.

HINT:

The spiral cable with sensor sub-assembly can be rotated approximately 2.5 times to both the left and right from the center.

*a

Interlock

*b

Flat Cable

9. INSTALL STEERING WHEEL ASSEMBLY

Click here

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