C1A47

DTC Code	DTC Name
C1A47	Steering Angle Sensor

DESCRIPTION

The brake booster with master cylinder assembly receives steering rotation angle information from the spiral with sensor cable sub-assembly and sends the information to the lane departure warning camera. When a steering angle sensor malfunction signal is received, DTC C1A47 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A47	Steering Angle Sensor	2 seconds elapse after turning the power switch on (IG). The IG voltage is 10 V or higher. 2 seconds elapse after the IG voltage is 10 V or higher. When a steering angle sensor malfunction signal is received for 5 seconds or more from the brake booster with master cylinder assembly.	Spiral with sensor cable sub-assembly Lane departure warning camera

CAUTION / NOTICE / HINT

Note

When the lane departure warning camera is replaced with a new one or it is removed, adjustment of the lane departure warning camera axis must be performed.

Click here
The lane departure alert system uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the lane departure alert system after confirming that the communication systems are functioning properly.

for LHD: Click here

for RHD: Click here
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

Click here

PROCEDURE

CHECK FOR DTCs (POWER STEERING SYSTEM)

for Manual Tilt and Manual Telescopic Steering Column:
1. Clear the DTCs.
  
  Click here
  
  Chassis > EMPS > Clear DTCs
2. Make sure that the DTC detection conditions are met.
  
  Tech Tips
  
  If the detection conditions are not met, the system cannot detect the malfunction.
3. Clear the DTCs.
  
  Click here
  
  Chassis > EMPS > Trouble Codes

for Power Tilt and Power Telescopic Steering Column:

Clear the DTCs.

Click here

Chassis > EMPS > Clear DTCs
Make sure that the DTC detection conditions are met.

Tech Tips

If the detection conditions are not met, the system cannot detect the malfunction.
Check for DTCs.

Click here

Chassis > EMPS > Trouble Codes

Result

Result	Proceed to
Power steering system DTCs are not output	A
Power steering system DTCs are output (for Manual Tilt and Manual Telescopic Steering Column)	B
Power steering system DTCs are output (for Power Tilt and Power Telescopic Steering Column)	C

B

GO TO POWER STEERING SYSTEM Click here

C

GO TO POWER STEERING SYSTEM Click here

A

REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

Replace the spiral with sensor cable sub-assembly with a new or normally functioning one.

Click here

Result

Proceed to
NEXT

CHECK FOR DTCs

for Manual Tilt and Manual Telescopic Steering Column:
1. Clear the DTCs.
  
  Click here
  
  Chassis > EMPS > Clear DTCs
2. Make sure that the DTC detection conditions are met.
  
  Tech Tips
  
  If the detection conditions are not met, the system cannot detect the malfunction.
3. Clear the DTCs.
  
  Click here
  
  Chassis > EMPS > Trouble Codes

for Power Tilt and Power Telescopic Steering Column:

Clear the DTCs.

Click here

Chassis > EMPS > Clear DTCs
Make sure that the DTC detection conditions are met.

Tech Tips

If the detection conditions are not met, the system cannot detect the malfunction.
Check for DTCs.

Click here

Chassis > EMPS > Trouble Codes

Result

Result	Proceed to
DTC C1A47 is not output	A
DTC C1A47 is output	B

A

END (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY WAS DEFECTIVE)

B

REPLACE LANE DEPARTURE WARNING CAMERA Click here

LANE DEPARTURE ALERT SYSTEM(w/ Steering Control), Diagnostic DTC:C1A47