COMPONENTS
ILLUSTRATION
*A | for HV Model |
- | - |
*1 | LUGGAGE TRIM SERVICE HOLE COVER |
- | - |
ILLUSTRATION
*1 | HORN BUTTON ASSEMBLY |
*2 | LOWER NO. 2 STEERING WHEEL COVER |
ILLUSTRATION
*1 | STEERING WHEEL ASSEMBLY |
- | - |
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Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf) |
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ILLUSTRATION
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*C | for Manual Tilt and Manual Telescopic Steering Column |
*D | for Power Tilt and Power Telescopic Steering Column |
*1 | LOWER STEERING COLUMN COVER |
*2 | SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
*3 | UPPER STEERING COLUMN COVER |
- | - |
ILLUSTRATION
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*1 | SPIRAL CABLE SUB-ASSEMBLY |
*2 | STEERING SENSOR |
INSPECTION
PROCEDURE
1. INSPECT SPIRAL CABLE SUB-ASSEMBLY
NOTICE:
(a) Visually check the spiral cable sub-assembly for defects.
(1) The defects are as follows:
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 |
- | - |
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Interlock | - |
- |
NOTICE:
(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.
INSTALLATION
PROCEDURE
1. INSPECT SPIRAL CABLE SUB-ASSEMBLY
NOTICE:
If the steering sensor is installed to a misaligned spiral cable sub-assembly, spiral cable with sensor sub-assembly malfunction DTCs, such as DTC B1801, C1231 and C1433, will be stored and it will be impossible to clear them. If this happens, replace the spiral cable sub-assembly and steering sensor with a new one.
(a) Check if the spiral cable sub-assembly is centered. OK:
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(b) If the spiral cable sub-assembly is not centered, center it.
NOTICE:
Make sure to observe the following precautions, otherwise the spiral cable sub-assembly may be damaged.
(1) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly counterclockwise slowly by hand until it stops.
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*a | Interlock |
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Rotation Direction |
NOTICE:
If the spiral cable sub-assembly is rotated clockwise in this step, it may be damaged and may no longer be able to be centered. Make sure to only rotate the spiral cable sub-assembly counterclockwise.
HINT:
If the interlock is engaged, the spiral cable sub-assembly will lock when the connector is near at the top or bottom of the rotation of the spiral cable sub-assembly.
(2) If the connector is not positioned at the bottom of the rotation of the spiral cable sub-assembly when the spiral cable sub-assembly is turned until it stops, turn the spiral cable sub-assembly clockwise until the connector is positioned at the bottom as shown in the illustration. |
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(3) While pushing on the interlock shown in the illustration, rotate the spiral cable sub-assembly clockwise approximately 2.5 times.
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*a | Interlock |
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Rotation Direction |
NOTICE:
If the spiral cable sub-assembly is rotated clockwise 5 times or more from the point at which it stops and the connector is positioned at the bottom, the spiral cable sub-assembly may be damaged.
HINT:
If the interlock is engaged, the spiral cable sub-assembly will lock when the connector is near at the top or bottom of the rotation of the spiral cable sub-assembly.
(4) Check that the spiral cable sub-assembly is centered. OK:
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2. INSTALL SPIRAL CABLE SUB-ASSEMBLY
(a) Align the 2 pins and 2 guides, and engage the 6 claws to install the spiral cable sub-assembly to the steering sensor. NOTICE:
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(b) Remove the lock pin from the steering sensor. |
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3. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
NOTICE:
(a) Check that the engine switch (for Gasoline Model) or power switch (for HV Model) is off.
(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Check that the front wheels are aligned facing straight ahead.
(d) Engage the claw and 2 clips to install the spiral cable with sensor sub-assembly.
(e) Install the wire harness to the spiral cable with sensor sub-assembly as shown in the illustration.
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Install in this Direction |
(f) Connect each connector.
4. INSTALL UPPER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
Click here
5. INSTALL UPPER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
Click here
6. INSTALL LOWER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
Click here
7. INSTALL LOWER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
Click here
8. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
9. INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
(a) Check that the engine switch (for Gasoline Model) or power switch (for HV Model) is off.
(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Check if the spiral cable with sensor sub-assembly is centered. OK:
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(d) If the spiral cable with sensor sub-assembly is not centered, center it.
NOTICE:
Make sure to observe the following precautions, otherwise the spiral cable with sensor sub-assembly may be damaged.
(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.
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*a | Interlock |
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Rotation Direction |
NOTICE:
If the spiral cable with sensor sub-assembly is rotated clockwise in this step, it may be damaged and may no longer be able to be centered. Make sure to only rotate the spiral cable with sensor sub-assembly counterclockwise.
HINT:
If the interlock is engaged, the spiral cable with sensor sub-assembly will lock when the connector is near at the top or bottom of the rotation of the spiral cable with sensor sub-assembly.
(2) If the connector is not positioned at the bottom of the rotation of the spiral cable with sensor sub-assembly when the spiral cable with sensor sub-assembly is turned until it stops, turn the spiral cable with sensor sub-assembly clockwise until the connector is positioned at the bottom as shown in the illustration. |
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(3) While pushing on the interlock shown in the illustration, rotate the spiral cable with sensor sub-assembly clockwise approximately 2.5 times.
*A | w/o Heated Steering Wheel System |
*B | w/ Heated Steering Wheel System |
*a | Interlock |
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Rotation Direction |
NOTICE:
If the spiral cable with sensor sub-assembly is rotated clockwise 5 times or more from the point at which it stops and the connector is positioned at the bottom, the spiral cable with sensor sub-assembly may be damaged.
HINT:
If the interlock is engaged, the spiral cable with sensor sub-assembly will lock when the connector is near at the top or bottom of the rotation of the spiral cable with sensor sub-assembly.
(4) Check that the spiral cable with sensor sub-assembly is centered. OK:
NOTICE: If the spiral cable with sensor sub-assembly cannot be centered, it may be damaged. Replace the spiral cable sub-assembly and steering sensor with a new one. |
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10. INSTALL STEERING WHEEL ASSEMBLY
Click here
11. CHECK STEERING WHEEL CENTER POINT
12. INSTALL HORN BUTTON ASSEMBLY
Click here
13. INSTALL LOWER NO. 2 STEERING WHEEL COVER
Click here
14. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL
for Gasoline Model: Click here
for HV Model: Click here
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Click here
15. INSTALL LUGGAGE TRIM SERVICE HOLE COVER (for HV Model)
Click here
16. INSPECT HORN BUTTON ASSEMBLY
(a) Make sure that the horn sounds.
If the horn does not sound, inspect the horn system.
Click here
17. PERFORM DIAGNOSTIC SYSTEM CHECK
for Gasoline Model: Click here
for HV Model: Click here
18. INSPECT SRS WARNING LIGHT
for Gasoline Model: Click here
for HV Model: Click here
19. CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM (for Power Tilt and Power Telescopic Steering Column)
Click here
20. PERFORM INITIALIZATION AND CALIBRATION (for Gasoline Model)
for Parking Assist Monitor System Initialization: Click here
for Parking Assist Monitor System Calibration: Click here
for Panoramic View Monitor System Initialization: Click here
for Panoramic View Monitor System Calibration: Click here
for Intelligent Clearance Sonar System Calibration: Click here
21. PERFORM INITIALIZATION AND CALIBRATION (for HV Model)
for Parking Assist Monitor System Initialization: Click here
for Parking Assist Monitor System Calibration: Click here
for Panoramic View Monitor System Initialization: Click here
for Panoramic View Monitor System Calibration: Click here
for Intelligent Clearance Sonar System Calibration: Click here
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during spiral cable sub-assembly removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced (for Gasoline Model)
Replaced Part or Performed Procedure |
Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
---|---|---|---|
*: When performing learning using the Techstream.
Click here | |||
Removal/installation of the spiral cable with sensor sub-assembly |
Steering angle zero point learning (Initialize intelligent clearance sonar system) |
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| Parking Assist Monitor System |
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Steering angle zero point learning (Initialize panoramic view monitor system) |
Panoramic View Monitor System |
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Disconnect cable from negative auxiliary battery terminal |
Perform steering sensor zero point calibration |
Lane Departure Alert System (w/ Steering Control) |
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Pre-collision System | |||
Intelligent Clearance Sonar System* | |||
Lighting System (for Gasoline Model with Cornering Light) | |||
Memorize steering angle neutral point |
Parking Assist Monitor System |
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Panoramic View Monitor System |
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Replaced Part or Performed Procedure |
Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
---|---|---|---|
*: When performing learning using the Techstream.
Click here | |||
Removal/installation of the spiral cable with sensor sub-assembly |
Steering angle zero point learning (Initialize intelligent clearance sonar system) |
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| Parking Assist Monitor System |
| |
Steering angle zero point learning (Initialize panoramic view monitor system) |
Panoramic View Monitor System |
| |
Disconnect cable from negative auxiliary battery terminal |
Perform steering sensor zero point calibration |
Lane Departure Alert System (w/ Steering Control) |
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Pre-collision System | |||
Intelligent Clearance Sonar System* | |||
Lighting System (for HV Model with Cornering Light) | |||
Memorize steering angle neutral point |
Parking Assist Monitor System |
| |
Panoramic View Monitor System |
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PROCEDURE
1. PRECAUTION
CAUTION:
Be sure to read Precaution thoroughly before servicing.
for Gasoline Model: Click here
for HV Model: Click here
NOTICE:
After turning the engine switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
2. CHANGE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM SETTINGS (for Power Tilt and Power Telescopic Steering Column)
Click here
3. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
4. REMOVE LUGGAGE TRIM SERVICE HOLE COVER (for HV Model)
Click here
5. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
for Gasoline Model: Click here
for HV Model: Click here
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Click here
6. REMOVE LOWER NO. 2 STEERING WHEEL COVER
Click here
7. REMOVE HORN BUTTON ASSEMBLY
Click here
8. REMOVE STEERING WHEEL ASSEMBLY
Click here
9. REMOVE LOWER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
Click here
10. REMOVE LOWER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
Click here
11. REMOVE UPPER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
Click here
12. REMOVE UPPER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
Click here
13. REMOVE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
NOTICE:
(a) Check that the engine switch (for Gasoline Model) or power switch (for HV Model) is off.
(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Check that the front wheels are aligned facing straight ahead.
(d) Slide the slider to release the lock, and then disconnect the yellow airbag connector from the spiral cable with sensor sub-assembly.
*a | Slider |
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Release in this Direction |
NOTICE:
When disconnecting any airbag connector, take care not to damage the airbag wire harness.
(e) Disconnect the other connectors from the spiral cable with sensor sub-assembly.
(f) Separate the wire harness from the spiral cable with sensor sub-assembly as shown in the illustration.
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Separate in this Direction |
(g) Disengage the claw and 2 clips to remove the spiral cable with sensor sub-assembly. |
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14. REMOVE SPIRAL CABLE SUB-ASSEMBLY
NOTICE:
Click here
(a) Install the lock pin to the steering sensor. NOTICE:
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(b) Disengage the 6 claws and 2 pins to remove the spiral cable sub-assembly from the steering sensor. NOTICE: Do not damage the pins of the spiral cable sub-assembly or guides of the steering sensor. |
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Gasoline Model): Radio Receiver Power Source Circuit. Registered Device cannot be Deleted. Reverse Signal Circuit
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