Component Location
General Description

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

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

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

DTC Description

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

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Enable Conditions

•

IG ON

1.

Open or short in circuit

2.

Faulty Smart Key ECM/PCM

Detecting time

•

1.5 seconds

Threshold value

•

No response form Smart Key ECM/PCM

(Communication line error - Open or short)

Diagnostic Circuit Diagram
Яндекс.Метрика