Component Location
General Description

In the Ignition ON position, the ECM/PCM receives information from the ICM and permits injection to take place If the CODE memorized in ECM/PCM is coincided with ICM.

When the ID code from the transponder is verified by the ICM then the registering sequence is complete and a answer signal is sent to the ECM/PCM.

The ICM sends a START or NO START signal to the ECM/PCM.

DTC Description

The DTC will set, there is no data transmitted from ECM/PCM for 5 seconds after ignition ON.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

CAN Data status receiving from ECM/PCM

1.

Open or Short in harness between ECM/PCM and ICU

2.

Faulty ECM/PCM

3.

Faulty ICU

Threshold value

•

No data transmitted from ECM/PCM for 5 seconds after ignition ON

Detecting time

•

1 time

DTC Erasing

Condition

•

Without a fault or using a GDS

Diagnostic Circuit Diagram
Signal Waveform & Data

Fig.1) A normal signal waveform of antenna and immobilizer communication when IG key(TP: Transponder) is OFF to ON.

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