What does fault code ECM-P034062 mean?

Diagnostic fault code details for ECM-P034062 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P034062 - Camshaft Position Sensor A Circuit (Bank 1 or single sensor). Algorithm Based Failures. Signal compare failure

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

3 models

S60 (2011–), S80 (2007–), V70 (2008–)

Show models by year and engine (9)

What does this fault code mean?

The engine control module (ECM) compares the signals from the camshaft sensors for intake and exhaust. The fault is stored when the signal from both sensors is faulty or missing. It is always stored together with another code for the camshaft sensor signal, and that other code says more about the fault.

Possible causes

Signal missing from the camshaft sensors
Incorrect circuit for the camshaft sensors

What you can do

1Read both this code and the other camshaft sensor signal code with a diagnostic tool, and start with the one that says more about the fault.
2Check that the fuses are intact.
3With the ignition off, check that the connectors to the camshaft sensors are secure and free from oxidation and contact resistance.
4Use a multimeter to check that the wires to the camshaft sensors have no open circuit and are not shorted to ground or supply voltage.
5If the fault remains, have a workshop check that the camshaft sensors are correctly fitted and correctly connected.

Symptoms you may notice2

Uneven idle
Poor performance

What the fault can affect3

Camshaft control is switched off
Diagnostics for camshaft control are switched off
Boost pressure is controlled using the basic setting

General guidance for car owners. Diagnosis on the car can point to a different cause.