Code No. C1505:
Steering angle sensor
caution |
If a diagnosis code is set,
be sure to diagnose the CAN bus line.
|
DIAGNOSTIC FUNCTION
When the steering wheel angle correction is performed based on the neutral position of
the steering wheel sensor during the straight driving and the correction value reaches 15° or
larger, diagnosis code No. C1505 is set.
CHECK CONDITION
When all the following conditions are satisfied.
- After the ignition switch is turned ON, two or more seconds passed.
- After the engine has started.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction or incorrect installation of the steering wheel sensor
- Calibration failure of the steering wheel sensor
- Malfunction of the laser radar
|
STEP 1. M.U.T.-III CAN bus diagnosis.
|
|
Use the M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Go to Step 2.
|
|
|
|
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
|
|
|
|
STEP 2. Steering wheel sensor installation state check.
|
|
Check that the steering wheel sensor is installed correctly.
|
|
Q.
Is the check result normal?
|
|
Go to Step 3.
|
|
|
|
Install the steering wheel sensor correctly (Refer to GROUP 35C - Steering
Wheel Sensor ).
|
|
|
|
STEP 3. Service data check of the ASC-ECU.
|
|
With the front wheel facing in the straight-ahead direction, check the steering wheel
sensor signal using the data lists of the ASC-ECU. Check that the value of the service data deviates
within ± 5° from the neutral position (Refer to GROUP 35C - Troubleshooting ).
|
|
- Item No.7: Steering angle
|
|
Q.
Is the check result normal?
|
|
Go to Step 4.
|
|
|
|
Calibrate the steering wheel sensor (Refer to GROUP 35C - On-vehicle
Service ).
|
|
|
|
STEP 4. Service data check of the ASC-ECU.
|
|
Turn the steering wheel fully to the left referring to the service data of the ASC-ECU,
and then turn it fully to the right. Then check that the value of the steering wheel sensor
changes smoothly. In addition, check that the steering wheel angle on the service data almost
matches the actual steering wheel angle (Refer to GROUP 35C - Troubleshooting ).
|
|
- Item No.7: Steering angle
|
|
Q.
Is the check result normal?
|
|
Go to Step 5.
|
|
|
|
Replace the steering wheel sensor (Refer to GROUP 35C - Steering Wheel
Sensor ).
|
|
|
|
STEP 5. Check whether the diagnosis code is set again.
|
|
Check again if the diagnosis code is set in the laser radar.
|
|
(1)Erase the set diagnosis code.
|
|
(2)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
(3)Drive the vehicle until its speed reaches 40 km/h.
|
|
(4)Check if the diagnosis code is set.
|
|
Q.
Is the diagnosis code set?
|
|
Replace the laser radar (Refer to ).
|
|
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent
Malfunction).
|
|
|