DTC C120A: ECU Initial Setting Incomplete: Procedure

1. Perform calibration. Refer to CALIBRATION [06/2012 - ] .
   NOTE:

   If a DTC is output after replacing the master cylinder solenoid, it is possible that calibration has not been performed or the zero point calibration data was not cleared when calibration was performed.

NEXT: Go to next step 

1. Check for DTCs. Refer to DTC CHECK / CLEAR [06/2012 - ] .
   RESULT
   
   

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

B → END 

A: Go to next step 

1. Switch the vehicle to test mode, perform the downhill assist control switch or crawl switch signal check, and then check that Test Mode (Signal Check) DTC C1379 is cleared. Refer to TEST MODE PROCEDURE [06/2012 - ] .
   RESULT
   
   

   Result	Proceed to
   Test Mode DTC C1379 is not cleared	A
   Test Mode DTC C1379 is cleared	B

B → See step   5 

A → See step   4