Dynamic Radar Cruise Control System

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: C1A40: ENG / EHV Device
C1A40 - ENG / EHV Device

DESCRIPTION

When the driving support ECU receives a hybrid control system or SFI system malfunction signal from the hybrid vehicle control ECU or ECM via the CAN communication line, DTC C1A40 is output.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (HYBRID CONTROL SYSTEM)

(a) Using the Techstream, enter the following menus: Powertrain / Hybrid Control / Trouble Code.

(b) Select "Clear" and clear the data.

(c) Recheck for DTC.

OK:

Hybrid control system DTC is not output.

NG -- GO TO HYBRID CONTROL SYSTEM Hybrid Control System
OK -- Continue to next step.

2. CHECK FOR DTC (SFI SYSTEM)

(a) Using the Techstream, enter the following menus: Powertrain / Engine and ETC / Trouble Code.

(b) Select "Clear" and clear the data.

(c) Recheck for DTC.

OK:

SFI system DTC is not output.

NG -- GO TO SFI SYSTEM SFI System
OK -- Continue to next step.

3. CHECK FOR DTC

(a) Using the Techstream, enter the following menus: Powertrain / Radar Cruise / Trouble Code.

(b) Select "Clear" and clear the data.

(c) Recheck for DTC.

OK:

DTC C1A40 is not output.

NG -- REPLACE DRIVING SUPPORT ECU Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting