DTC C1A40: ENG / EHV Device [02/2014 - 11/2016]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
5. Check for DTCs.

   Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   Hybrid control system DTCs are not output	A
   Hybrid control system DTCs are output	B

6. Turn the power switch off.

Result:  2

B 

GO TO HYBRID CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - ] 

Result:  1

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Check for DTCs.

   Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

   Powertrain > Engine and ECT > Trouble Codes 

   Result

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

6. Turn the power switch off.

Result:  2

B 

GO TO SFI SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [02/2014 - 08/2014]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2014 - 11/2015]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2016] 

Result:  1

A 

See step  3

1. Replace the driving support ECU assembly.

   Refer to REMOVAL [02/2014 - ]

   NOTE:

   When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

NEXT 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

4. Make sure that the DTC detection conditions are met.

   HINT: 

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

5. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
6. Check for DTCs.

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A40 is not output	A
   DTC C1A40 is output	B

7. Turn the power switch off.

Result:  1

A 

END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) 

Result:  2

B 

See step  5

1. Replace the power management control ECU with a new one.

   Refer to REMOVAL [02/2014 - 11/2016]

NEXT 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

4. Make sure that the DTC detection conditions are met.

   HINT: 

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

5. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
6. Check for DTCs.

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A40 is not output	A
   DTC C1A40 is output	B

7. Turn the power switch off.

Result:  1

A 

END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE) 

Result:  2

B 

REPLACE ECM. Refer to  COMPONENTS [02/2014 - 11/2016]