Component Location
General Description

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

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

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

DTC Description

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

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Enable Conditions

–

IG ON

1.

Open or short in circuit

2.

Faulty Smart Key PCM/ECM

Detecting time

–

1.5 seconds

Threshold value

–

No response form Smart Key PCM/ECM

(Communication line error - Open or short)

Diagnostic Circuit Diagram
Яндекс.Метрика