Monitor Description

OUTLINE OF DIAGNOSIS

Detect malfunction of CAN communication.

U007B: Judge as NG when CAN communication failure has occurred.

U0101, U0122, U0155: Judge as NG when CAN communication failure between TCM, VSC (VDC) CM, and combination meter has occurred.

U0402, U0416, U0423: Judge as NG when data received from TCM, VSC (VDC) CM, and combination meter is not normal.

COMPONENT DESCRIPTION

(Common specifications)

CAN Protocol 2.0B (active)

Frame Format: 11 Bit ID Frame (standard frame)

Conforms to ISO11898

Communication speed: 500 kbps

EXECUTION CONDITION

Secondary parameters	Execution condition
Battery voltage	10.9 V or higher

GENERAL DRIVING CYCLE

Perform the diagnosis continuously after starting the engine.

DIAGNOSTIC METHOD

Judge as NG when the following conditions are established.

Judgment value

U007B

Malfunction Criteria	Threshold Value
CAN bus condition	Bus off

U0101, U0122, U0155

Malfunction Criteria	Threshold Value
ID received from control module connected to CAN	None

U0402, U0416, U0423

Malfunction Criteria	Threshold Value
Data from control modules connected to CAN	No change

Time needed for diagnosis

U007B: 436 ms

U0101, U0122, U0155: 500 ms

U0402, U0416, U0423: 2000 ms

Malfunction indicator light illumination

U007B: Does not illuminate even when malfunction occurs.

U0101, U0122, U0155, U0402, U0416, U0423: Illuminates as soon as a malfunction occurs.