what does it mean on a 98Cadillac Deville de elegance for obd2 code :pcm p1520

Question

Obd2 trouble code Pcm p1520

Answer 1

Hi there

The code P1520 is for the transmission range sensor/switch. This is the switch under the shift linkage. This could result in the code if there is a problem with the switch sending signal. The other two codes are for a lean fue mixture. This could be due to a low fuel pressure or a faulty mass air flow sensor.