DTC P1531 Audi
Camshaft Control Circuit Open
Camshaft Control Circuit Open
Description
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.
Cause and Solution
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
Video Guide
Diagnostic Info
- DTC Code: P1531
- Brand: Audi