Swc Input Operation - Dual DM90MIR Installation & Owner's Manual

The built-in SWC Interface is compatible with PAC steering wheel control modules.
The PAC SWI-RC is recommended. A third-party adapter must be used in order for the
DM90MIR to be compatible with any steering wheel controls. The following controls are
available for most vehicles.
1. Reset
2. Mode
3. Seek/Track Up (+)
Note: Not all OE steering wheel functions may be supported by the DM90MIR.
1. Set "Radio Select Switch". Set the SWI-RC to position 7 - "Pioneer/Other/Sony".
2. To program, use the Pioneer/Sony/Other radio function mapping order for DUAL units.
3. When programming the SWI-RC, if a function is not supported (or not desired), then the
function MUST be skipped as per the PAC SWI-RC instructions.
4. The SWC function MUST be programmed in the correct order per the PAC SWI-RC radio
function mapping order instructions.
Function
Order
1
2
3 Seek + / Track +
4 Seek - / Track -
5
6
7
8
9
10

SWC Input Operation

4. Seek/Track Down (-)
5. Mute
6. Volume Up (+)
PAC SWI-RC Installation Hints
Function
Mapping
Reset
Mode
Mute
Volume +
Volume -
Band
BT Talk
BT End
7. Volume Down (-)
8. Band
9. BT Talk
SWI-RC (3.3VDC Reference)
Center Pin (Ring) Voltage
(Function Select)
H 3.3v
H 3.3v
H 3.3v
H 3.3v
H 3.3v
H 3.3v
L 0.0V
L 0.0V
DM90MIR
10. BT End
Tip Pin Voltage
0.6
1.81
1.01
2.07
2.32
2.73
0.60
1.01
20