2003 HONDA CIVIC Circuit

\lgnition Key Switch Test
NOTE: For more key-in beeper information, refer to the
circuit diagram (see page 22-90) and input test (see
page 22-921.
When the ignition key is in the ignition switch the
multiplex control unit senses ground through the
closed ignition key switch. When you open the driver's
door, the multiplex control unit senses ground through
the closed door switch and sounds the beeper.
1. Remove the steering column upper and lower
covers (see page'17-9).
2. Disconnect the 6P connector.
3.Check for continuity between the No. 1 and No. 2
termrnars.
. There should be continuity with the key in the
ignition switch.. There should be no continuity with the key
removed from the ignition switch.
lf the continuity is not as specfied, replace the
ignition switch.
lgnition Key Light Test
1.Remove the steering column upper and lower
covers (see page 17-9).
Disconnect the 6P connector,
The LED should come on when power is connected
to the No. 6 terminal and ground is connected to
No. 5 terminal.
lf the LED does not come on, replace the ignition
swrtch.
i'
/.'
22-91

Circuit Diagram
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22-95

tCircuit Diagram
' No.20ioA) :USA
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AUDIO UflIT
t-ra-r:-raOe?a
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22-99

t
J Circuit Diagram
J
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T f,rAi wrxDow,74 DEfOGGES( \/ I SWrcfl\iP INDIATORL ILEDI
22-105

Circuit Diagram
- No.20lOAl :USNo.20150 ) :Canda
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UNDIR OAS8 FUSE/NILAY MX
BL|(
+
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22-109

Circuit Diagram
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22-115

1.
2.
3.
Power Mirror Switch Test
Remove the driver's pocket (see page 20-60).
Reach through the pocket opening, and push out
the power mirror switch (A).
Disconnect the 13P connector (B) f rom the switch.
Check for continuity between the terminals in each
switch position according to the table.
Mirror Switch:
\.f9.-'"1L
Position256 1011 1213
UPCF--o
o-o
o-
G-c)o
o-o-
-o
!
RIGHT-o
o-o
UP
"[T
RIGHT
Defogger Switch (Canadal:
Te.minal
il;;; tlfI8
ONoo
OFF
lf the continuity is not as specified, replace thepower mirror switch.
5.
22-117
1,
2.
Power Mirror Actuator Test
Remove the door panel (see page 20-4).
Disconnect the 6P connector (A) from the power
mirror actuator (B).
Check actuator operation by connecting power and
ground according to the table.
Terminal
Position64
TILT UPoo
TILT DOWNo
SWING LEFTo@
SWING RIGHT@
4. lf the mirror fails to work properly, replace the
mtrror actuator.
Defogger Test {Canada);
5. Check for continuity between the No. 1and No.2
terminals of the 6P connector. There should be
continuity. lf there is no continuity, check for an
open circuit.

Circuit Diagram
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WHT/BU
22-125