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Pre-Collision System








PRE-COLLISION: PRE-COLLISION SYSTEM: C1A40: ENG / EHV Device

DTC C1A40 - ENG / EHV Device

DESCRIPTION

When the driving support ECU receives a hybrid control system or SFI system malfunctioning signal from the hybrid vehicle control ECU via the CAN communication line, DTC C1A40 is output.
When DTC C1A40 is detected, the hybrid control system or engine control system DTC will also be detected.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (HYBRID CONTROL SYSTEM)
(a) Check for DTCs L110F Hybrid Vehicle Control System.

Result





B -- GO TO HYBRID CONTROL SYSTEM
A -- Continue to next step.
2. CHECK FOR DTC (SFI SYSTEM)
(a) Check for DTCs DTC Check / Clear.

Result





B -- GO TO SFI SYSTEM
A -- Continue to next step.
3. CHECK FOR DTC
(a) Using the intelligent tester or Techstream, enter the following menus:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / PRE-COLLISION 2 / DTC INFO.
(2) Techstream - Select: Body Electrical / Pre-Collision 2 / Trouble Code.
(b) Select "Clear" and clear the data.
(c) Recheck for DTC.
OK:
DTC C1A40 is not output.
NG -- REPLACE DRIVING SUPPORT ECU
OK -- USE SIMULATION METHOD TO CHECK