DTC C1A40: ENG / EHV Device: Procedure

CHECK DTC OUTPUT (HYBRID CONTROL SYSTEM)
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Make sure the following conditions are met:
  - Pre-collision system:
    The power switch is on (IG).
  - Radar cruise control system:
    The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the distance control switch is on.
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  Hybrid control system DTC is not output.
NG → See step 8

OK: Go to next step
CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Make sure the following conditions are met:
  - Pre-collision system:
    The power switch is on (IG).
  - Radar cruise control system:
    The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the distance control switch is on.
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  Engine control system DTC is not output.
NG → See step 9

OK: Go to next step
CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Make sure the following conditions are met:
  - Pre-collision system:
    The power switch is on (IG).
  - Radar cruise control system:
    The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the distance control switch is on.
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  DTC C1A40 is not output.
NG → See step 4

OK → END
REPLACE POWER MANAGEMENT CONTROL ECU
1. Replace the power management control ECU with a new one. Refer to REMOVAL .
NEXT: Go to next step
CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Make sure the following conditions are met:
  - Pre-collision system:
    The power switch is on (IG).
  - Radar cruise control system:
    The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the distance control switch is on.
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  DTC C1A40 is not output.
NG → See step 6

OK → END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE)
REPLACE DRIVING SUPPORT ECU
1. Replace the driving support ECU with a new one. Refer to REMOVAL .
NEXT: Go to next step
CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Make sure the following conditions are met:
  - Pre-collision system:
    The power switch is on (IG).
  - Radar cruise control system:
    The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the distance control switch is on.
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  DTC C1A40 is not output.
NG → See step 10

OK → END (DRIVING SUPPORT ECU WAS DEFECTIVE)
GO TO HYBRID CONTROL SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART
GO TO ENGINE CONTROL SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART
REPLACE ECM. Refer to REMOVAL