DTC    C1A40    ENG / EHV Device

for Preparation Click here


DESCRIPTION

When the driving support ECU receives a hybrid control system or engine control system malfunctioning signal from the power management control ECU via the CAN communication system, DTC C1A40 is stored.
When DTC C1A40 is stored, hybrid control system or engine control system DTCs will also be stored.

DTC No.
DTC Detection Condition
Trouble Area
C1A40
While the power switch is on (IG), a hybrid control system or engine control system malfunction signal is detected for 1 second.
  1. Hybrid control system
  2. Power management control ECU
  3. Engine control system
  4. Driving support ECU

INSPECTION PROCEDURE

1.CHECK DTC OUTPUT (HYBRID CONTROL SYSTEM)

  1. Check DTCs for the hybrid control system (Click here).

    OK:
    Hybrid control system DTC is not output.



NG
GO TO HYBRID CONTROL SYSTEM (Click here)
OK


2.CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)

  1. Check DTCs for the engine control system (Click here).

    OK:
    Engine control system DTC is not output.



NG
GO TO ENGINE CONTROL SYSTEM (Click here)
OK


3.REPLACE POWER MANAGEMENT CONTROL ECU

  1. Replace the power management control ECU (Click here).


NEXT


4.CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

  1. Using the intelligent tester, enter the following menus: Body / Pre-Crash 2 / DTC.

  1. Clear the DTCs (Click here).

  1. Check for DTCs.

    OK:
    DTC C1A40 is not output.



NG
REPLACE DRIVING SUPPORT ECU (Click here)
OK

END