Component Location
General Description

CAN communication Line consists of Low and High line so that each ECU can communicate their information for each other.

In order to adopt TCM control for SPAS, SPAS and TCM communicate each other.

DTC Description

The SPAS ECU receives a CAN Message (the gear signal of A/T vehicles), if the CAN communication is abnormal, the DTC is set.

Between LOW and HIGH, if only the one is open or short to ground, the SPAS ECU could communicate with the TCM.

DTC Deteting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

•

Status for receving CAN message from TCM

1.

Poor Connection

2.

TCM

Enable Conditions

•

IG ON.

Threshold vlaue

•

SPAS ECU receives Invalid messages from TCM

Diagnostic Time

•

Invalid CAN messages for more than 0.5 sec.

DTC Erasing Time

•

-

Diagnostic Circuit Diagram
Signal Waveform & Data
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