Diagnostic trouble code (DTC) information ECM-6710

Condition

Fig 1: Identifying Camshaft Control (CVVT)

Courtesy of VOLVO CARS OF NORTH AMERICA.

The engine control module (ECM) checks the angle of the camshaft (its position in relation to the crankshaft).

If Engine control module (ECM) detects that the exhaust camshaft's angle position changes dramatically during running, then Engine control module will interpret this as a failure and store a diagnostic trouble code.

The diagnostic trouble code (DTC) can be diagnosed when the engine is hot and the camshaft is in position 0.

For more information, see Design and Function.

Substitute Value

The Engine control module (ECM) switches off camshaft control.

Possible Source

Incorrectly adjusted camshafts
The timing gear belt has jumped off the cogs
Damaged camshaft reset valve
Mechanical fault in the variable valve timing (VVT) unit.

Fault symptom[s]

Malfunction indicator lamp (MIL) lit.