Circuit Description

See CODE 12 - G & NE SIGNAL CIRCUIT (NO. 1). Code is set when there is no NE signal to ECM for .3 seconds with engine speed of 1500 RPM or more and/or no G signal to ECM while NE signal is input 4 times to ECM with engine speed of 500-4000 RPM. Possible causes are:

• NE open or short circuit.
• Distributor (pick-up coil(s).
• ECM.