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Component Location

General Description

The HECU interchanges requirement data with the 4WD ECU through CAN bus line for normal ABS control. For example the HECU sends a control inhibition signal to 4WD ECU for normal ABS control in case of the ABS and 4WD control requested at the same time such as wheel speed difference between front and rear wheel generated due to wheel slip.

DTC Description

The HECU checks the CAN control module and sets this code if CAN control module malfunction is detected.

DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	• CAN control module monitoring	• Faulty HECU
Monitoring Period	• Immediate during start up
Enable Conditions	• Faults are detected immediately if the initialization software can't have write access to the configuration registers of the CAN-controller module.
Fail Safe	• -

Schematic Diagram

note

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