Acura CSX. Manual — part 559
*02
22-283
R16
PNK
Q6
PNK
PNK
B-CAN
PNK
R6
G504
BLK
2
1
PNK
GRN
E37
MICU
UNDER-DASH FUSE/RELAY BOX
9
S1
ORN
S5
S11
S13
BLK
PNK
GRY
12
(
(
)
10
11
)
OFF
COMBINATION LIGHT SWITCH
DRIVER’S
DOOR SWITCH
(Closed :
Door open)
IGNITION
KEY
SWITCH
(Closed :
Key inserted)
IMMOBILIZER-
KEYLESS
CONTROL UNIT
GAUGE CONTROL
MODULE (TACH)
•
•
•
•
MICU
CLIMATE CONTROL
UNIT
IMMOBILIZER-
KEYLESS
CONTROL UNIT
HANDSFREELINK
CONTROL UNIT*
1
: CAN line
*: ’09 model with navigation system
A
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01
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22-284
Reminder Systems
MICU Input Test
UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)
GRN
PUR
PNK
ORN
BLK
PNK
GRY
UNDER-DASH FUSE/RELAY BOX
CONNECTOR R (20P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
UNDER-DASH FUSE/RELAY BOX
CONNECTOR S (20P)
1. Before testing the multiplex control system, troubleshoot the system using B-CAN System Diagnosis Test Mode A
(see page 22-93).
2. Check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is blown, replace it and go to step 3.
3. Disconnect the under-dash fuse/relay box connectors E, F, R, and S.
NOTE: All connector views are wire side of female terminals.
4. Inspect the connector and socket terminals to be sure they are all making good contact.
• If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
• If the terminals look OK, go to step 5.
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Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result is not
obtained
22-285
5. Reconnect the connector to the under-dash fuse/relay box, and do these input tests at the following connectors.
• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
E37
GRN
Driver’s door open
Measure the voltage to ground:
There should be less than 0.5 V.
Faulty driver’s door switch
An open in the wire
Driver’s door closed
Measure the voltage to ground:
There should be more than 5 V.
Faulty driver’s door switch
A short to ground in the wire
R6
PNK
Ignition key inserted into the
ignition switch
Measure the voltage to ground:
There should be less than 0.5 V.
Poor ground (G504)
Faulty ignition key switch
An open in the wire
Ignition switch OFF and ignition
key removed from the ignition
switch
Measure the voltage to ground:
There should be more than 5 V.
Faulty ignition key switch
A short to ground in the wire
S1
·
S5
ORN
·
BLK
Combination light switch OFF
Measure the voltage between S1
and S5 terminals:
There should be less than 0.5 V.
Faulty combination light switch
An open in the wire
Combination light switch in any
other position than OFF
Measure the voltage between S1
and S5 terminals:
There should be more than 5 V.
Faulty combination light switch
A short to ground in the wire
S11
·
S5
PNK
·
BLK
Combination light switch
(Headlight position) ON
Measure the voltage between S11
and S5 terminals:
There should be less than 0.5 V.
Faulty combination light switch
An open in the wire
Combination light switch OFF
Measure the voltage between S11
and S5 terminals:
There should be more than 5 V.
Faulty combination light switch
A short to ground in the wire
S13
·
S5
GRY
·
BLK
Combination light switch
(SMALL position) ON
Measure the voltage between S13
and S5 terminals:
There should be less than 0.5 V.
Faulty combination light switch
An open in the wire
Combination light switch OFF
Measure the voltage between S13
and S5 terminals:
There should be more than 5 V.
Faulty combination light switch
A short to ground in the wire
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*02
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22-286
Moonroof
Component Location Index
MOONROOF CONTROL UNIT/MOTOR
MOONROOF SWITCH
Resetting, page 22-287
Input Test, page 22-290
Replacement, page 20-59
Test/Replacement,
’06-07 models, page 22-293
’08-09 models, page 22-293
08/08/21 14:36:04 61SNR030_220_0288
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