RADIO
Fault finding chart
86A
86A - 24V2 MR-372-J84-86A000$792_eng.mif
ALP 7 The volume does not increase with the vehicle speed.
The SDVC (speed-dependent volume
control) function does not work.
Check the audio equipment
configuration (Expert mode). Set the
SPEED curve to 5 and run a test when
driving at a speed greater than 48 mph
(80 km/h).
No
Does the volume change?
Yes
The fault has been rectified. Check the signal on
connection 47F (see wiring
diagrams Technical Note,
vehicle, code 261) using a
multimeter. The voltage should
vary depending on vehicle
speed. Reset the control to: CURVE 2.
Yes
No
Does the signal increase?
YES
The fault is not associated with
the audio equipment. See MR
Fault finding corresponding to
vehicle, 38C, ABS, Conformity
check.Replace the radio with the
approval of your Techline.
