P0512 Mercury Starter Request Circuit

Possible causes

– Open or short circuit condition
– Poor electrical connection

Tech description

For models the P0512 Mercury code could be triggered by the immobilizer system. The immobilizer system is not receiving the signal from the antenna ring, replacing the antenna ring and clear the code usually takes care of the problem.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– No or hard engine start situation