Well the P1332 is stored if the ECM sees that the camshaft is not in the correct position. The causes of this code are a camshaft belt that has jumped out of place on the timing gears, a defective camshaft reset valve, a mechanical fault in the variable valve timing unit, or a faulty camshaft position sensors. The P0013 is set if there is a fault in the camshaft reset valve cable. When this code is set the variable camshaft timing is set and the camshaft remains in the maximum performance position. The vehicle may idle roughly. This is what could be causing the vehicle to fail emissions even though there are no obvious driveability problems. The possible causes for this are a defective camshaft reset valve or some type of short in the power supply cable or signal cable. You can test the sensor with a voltmeter. The rest of the tests have to be performed with the proper scan tool. Most likely this will have to be performed at a volvo dealer or a shop that has the appropriate software for their scan tool. Let me know if you have any other questions. Thanks.

To test the camshaft reset valve, unplug the reset valve connector. Check reset valve resistance between terminal No.1 and terminal No. 2. Resistance should be approximately 3.7 ohms. If it isn't then replace the reset valve.