DTC P1676: SMARTRA Message Error: General Description

The PCM/ECM controls the engine, in a normal way for starting and running, and starts communication with the IBU (SMK+BCM+TPMS), sending a PIN request to the IBU (SMK+BCM+TPMS) and waiting for valid release message from it until the release time period has ended.

In case of IBU (SMK+BCM+TPMS) immobilizer function is locked, the IBU (SMK+BCM+TPMS) answer is the no release message. ECM/PCM enters in the locked state, which causes the activation of the immobilization actions of the engine. In case of IBU (SMK+BCM+TPMS) immobilizer function state is released, the IBU (SMK+BCM+TPMS) answer is the release message, including the information IBU (SMK+BCM+TPMS) in learnt mode and the PIN code.