DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU [09/2014 - 10/2015]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

   OK

   Vehicle stability control system DTCs is not output.

Result: 

NG 

GO TO VEHICLE STABILITY CONTROL SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

Result: 

OK 

See step  2

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
   RESULT
   
   

   Result	Proceed to
   SFI system DTCs are not output	A
   SFI system DTCs are output	B

Result: 

B 

GO TO SFI SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

Result: 

A 

See step  3

1. Replace the ECM with a new one (Refer to REMOVAL [09/2014 - 10/2015] ).

Result: 

NEXT 

See step  4

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

   OK

   DTC C1A41 is not output.

Result: 

OK 

END (ECM WAS DEFECTIVE) 

Result: 

NG 

See step  5

1. Replace the brake actuator assembly with a new one (Refer to REMOVAL [09/2014 - 10/2015] ).

Result: 

NEXT 

See step  6

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

   OK

   DTC C1A41 is not output.

   NOTE:

   When replacing the driving support ECU, always replace it with a new one and be sure to perform initialization (Refer to INITIALIZATION [09/2014 - 10/2015] ). If an ECU which was installed to another vehicle is used, the information stored in the ECU will not match the information from the vehicle, and as a result, a DTC may be stored.

Result: 

OK 

END (BRAKE ACTUATOR ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE DRIVING SUPPORT ECU 

(Refer to REMOVAL [09/2014 - 10/2015] )