Component Location
General Description

The ECM controls the engine, in a normal way for starting and running, and starts communication with the Smart Key ECM, sending a PIN request to the Smart Key ECM and waiting for valid release message from it until the release time period has ended.

In case of Smart Key ECM immobilizer function is locked, the Smart Key ECM answer is the no release message. ECM enters in the locked state, which causes theactivation of the imobilization actions of the engine.

In case of Smart Key ECM immobilizer function state is released, the Smart Key ECM answer is the release message, including the information Smart Key ECM inlearnt mode and the PIN code.

DTC Description

DTC P1690 is set ECM has not received any signals related starting engine, Although ECM sends wake up signal to Smart Key ECM.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Enable Conditions

•

IG ON

1.

Open or short in circuit

2.

Faulty Smart Key ECM

Detecting time

•

1.5 seconds

Threshold value

•

No response form Smart Key ECM

(Communication line error - Open or short)

Diagnostic Circuit Diagram
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Яндекс.Метрика