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19
Repeat steps 14 through 18 for every
signal wire (with a PINK SWI tag.)
20
Apply RED DMM probe tip to first signal wire
(PINK label).
Apply BLACK DMM probe tip to linked feed
wire (BROWN label).
1
1
2
2
3
3
4
5
6
7
8
9
21
Ω
Measure resistance value between feed
wire and signal wire.
88.88
DC
Ω
HOLD
MIN MAX
RANGE
mV
Ω
)
)
)
)
V
)
Hz
~
~
mA
V
Hz
Hz
OFF
~
Hz
A
22
Record resistance at idle value in section A.
400
Ω
V
mA
!
600V CAT IV
1000V CAT III
10A
FUSED
COM
A
23
Repeat steps 20 through 22 for each signal
wire.
24
Apply RED DMM probe tip to first signal wire
(PINK label).
Apply BLACK DMM probe tip to linked feed
wire (BROWN label).
1
1
2
2
3
3
4
5
6
7
8
9
WWW.IDATALINK.COM/SUPPORT
External module Wiring (Identifying/Gathering information)
25
One at a time, press and hold each steering
wheel button linked to that signal wire.
26
Ω
For each button, measure resistance value.
(Wait for a stable reading.)
88.88
DC
Ω
HOLD
MIN MAX
RANGE
mV
Ω
)
)
)
)
V
)
Hz
~
~
mA
V
Hz
Hz
~
OFF
A
Hz
27
For each button, record resistance value in
section C.
400
Ω
V
mA
!
600V CAT IV
1000V CAT III
10A
FUSED
COM
C
28
Repeat steps 24 through 27 for each signal
wire.
29
Go to step 35 in Radio wiring
(Identifying/Gathering Information)
section.
30
Apply RED DMM probe tip to first signal
wire (PINK label).
Apply BLACK DMM probe tip to Ground(-).
1
1
2
2
3
3
4
5
6
7
8
9
Maestro Install Guide / Vehicles not currently covered
31
Ω
Measure resistance value between ground
and signal wire.
88.88
DC
Ω
HOLD
MIN MAX
RANGE
mV
Ω
)
)
V
)
)
)
Hz
~
~
mA
Hz
V
Hz
OFF
~
Hz
A
32
Record resistance at idle value in section
400
Ω
V
mA
A.
!
600V CAT IV
1000V CAT III
10A
FUSED
COM
A
33
Repeat steps 30 through 32 for every
signal wire (with a PINK SWI tag.)
34
Apply RED DMM probe tip to first signal
wire (PINK label).
Apply BLACK DMM probe tip to Ground(-).
1
1
2
2
3
3
4
5
6
7
8
9
35
One at a time, press and hold each
steering wheel button linked to that signal
wire.
36
Ω
For each button, measure resistance value.
(Wait for a stable reading.)
88.88
DC
Ω
HOLD
MIN MAX
RANGE
mV
Ω
)
)
)
V
)
)
Hz
~
~
V
mA
Hz
Hz
OFF
~
Hz
A
400
Ω
V
mA
Automotive Data Solutions Inc. © 2012
!
600V CAT IV
1000V CAT III
10A
FUSED
COM
P. 7/8
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