Audi P1531: Camshaft Control Circuit Open

Is your scanner showing Audi P1531?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Audi P1531: Camshaft Control Circuit Open

OVERVIEW

Severity

High

DIY Difficulty Level

Intermediate

Repair Cost

$200-$400

Can I Still Drive?

What Does The Audi P1531 Code Mean?

This code indicates the condition that engine started and driven at an engine speed of more than 400rpm; and the ECM detected the camshaft timing exceeded the calibrated levels. The valve timing did not change from the current valve timing or it remained fixed during the testing.

Note: The camshaft adjustment is load- and RPM dependant. The electrical camshaft adjustment valve 1 switches oil pressure onto camshaft adjuster (mechanical adjustment mechanism), which adjusts the camshaft.

What Are The Potential Causes Of The Audi P1531 Code?

Below are some potential causes of this DTC:

Fuel pump has failed
CPS circuit is open, shorted to ground or shorted to power
ECM has failed
Battery voltage below 11.5 volts
Position actuator circuit may short to B+ or Ground
Camshaft timing improperly set, or continuous oil flow to the VCT piston chamber
Camshaft advance mechanism (the VCT unit) is sticking or binding mechanically
VCT solenoid valve is stuck in open position