DTC C1AA3: Vehicle Speed Sensor Circuit [09/2015 - 08/2019]: Procedure

HINT: 

If DTC C1AA3 is stored, the VSC system may be malfunctioning. Check for DTCs related to the VSC system first.

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

   Chassis > ABS/VSC/TRAC/EPB > Trouble Codes 

   Result

   Result	Proceed to
   Vehicle stability control system DTCs are not output	A
   Vehicle stability control system DTCs are output	B

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - 08/2019] 

Result: 

A 

See step  2

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

   Chassis > Front Recognition Camera > Clear DTCs 

2. Perform the following procedure.

   HINT: 

   If the following procedure is not performed, the previously output DTC cannot be detected.

   1. Turn the engine switch on (IG) and wait 7 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

   Chassis > Front Recognition Camera > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1AA3 is not output	A
   DTC C1AA3 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 08/2019] 

Result: 

B 

See step  3

1. Replace the forward recognition camera.

   Refer to REMOVAL [09/2015 - 08/2019]

2. Perform Forward Recognition Camera Learning.

   Refer to ADJUSTMENT [09/2015 - 08/2019]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

   Chassis > Front Recognition Camera > Clear DTCs 

2. Perform the following procedure.

   HINT: 

   If the following procedure is not performed, the previously output DTC cannot be detected.

   1. Turn the engine switch on (IG) and wait 7 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

   Chassis > Front Recognition Camera > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1AA3 is not output	A
   DTC C1AA3 is output	B

Result: 

A 

END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) 

Result: 

B 

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  COMPONENTS [09/2015 - ]