Subaru 2009 IMPREZA Service Manual page 2568

VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Symptom
VDC OFF indicator light does not
illuminate when the VDC OFF
switch is depressed.
NOTE:
When pressing VDC OFF switch
for 10 seconds or more, VDC OFF
indicator light goes off and cannot
operate any more. When turning
the ignition switch from OFF to
ON, the previous status is re-
stored.
General Diagnostic Table
Main probable cause
• Harness
• Combination meter
• VDC OFF switch
VDC(diag)-106
Other probable cause