Component Location
General Description

The AVH(Auto Vihicle Hold) is a convenience and comfort function which prevents vehicle from rolling away when depressing the brake pedal with 'D' positon in gear after standing still untill pressing an accelerator pedal

It is operated via HECU. The HECU maintains the state of standing still with holding last applied braking pressure even though the driver depresses the brake pedal.

The HECU exchanges CAN messages with cluster, EPB ECU for normal operation of the AVH. (If the HECU receives the door open message from cluster, it prohibits the AVH operation)

DTC Description

The HECU checks the CAN communcation lines for the normal control, and sets this code if a cluster message is not received within 2s.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

•

CAN message monitoring

1.

Faulty cluster

2.

Open or short in CAN communication line

3.

Poor connection

Enable Conditions

•

In case that CLU2 message was not received for more than 2sec within normal voltage condition

Fail-Safe

•

The AVH(Automatic Vehicle Hold) function is inhibited

Diagnostic Circuit Diagram
note
To view Flash content, you need to install the appropriate browser extension
Яндекс.Метрика