1996 ACURA RL KA9 fuse box

Navigation Syste m
Sympto m Troubleshootin g (cont'd )
Display uni t button s d o no t wor k
NOTE :
• Alway s chec k th e connector s fo r poo r connection s o r
loos e terminals .
• Befor e troubleshooting , ge t th e navigatio n syste m
anti-thef t codes .
• Afte r troubleshooting , ente r th e navigatio n syste m
anti-thef t codes .
1. Tur n th e ignitio n switc h to AC C (I) .
2. G o int o th e Diagnosti c mod e an d us e "Touc h Panel "
diagnosti c unde r Monito r Chec k (se e pag e 23-41 )
and, i f necessary , "Display " diagnosti c unde r Uni t
Chec k (se e pag e 23-43 ).
Do the buttons work properly?
YES—System is OK .
NO—G o t o ste p 3 .
3. Measur e th e voltag e betwee n bod y groun d an d dis -
play uni t connecto r B (20P ) termina l No . 1 an d No . 2
individually .
DISPLAY UNI T CONNECTO R B (20P )
+B(WHT/YEL ) AC C (WHT/YEL )
Wire sid e o f femal e terminal s
Is there battery voltage?
YES—G o to ste p 4 .
NO—I f th e + B wir e doe s no t hav e voltage , repai r th e
ope n in th e wir e betwee n th e under-hoo d fuse/rela y
box an d th e displa y unit . I f th e AC C wir e doe s no t
hav e voltage , repai r th e ope n in th e wir e betwee n th e
under-das h fuse/rela y bo x an d th e displa y unit .
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Troubleshooting
If th e chargin g syste m ligh t doe s no t com e o n o r doe s no t g o off , o r th e batter y i s dea d o r low , tes t th e followin g item s i n
th e orde r liste d below :
1. Batter y (se e sectio n 23 )
2. Chargin g Syste m Ligh t (se e below )
3. Alternator/Regulato r (se e pag e 4-27 )
Chargin g Syste m Ligh t Tes t
Chec k th e No . 2 0 (7. 5 A ) fus e i n
th e under-das h fuse/rela y box .
I s th e fus e OK ?
Chec k fo r a n ope n in th e L circuit :
1 . Disconnec t th e 4 P connecto r
fro m th e alternator .
2 . Groun d th e No . 3 termina l o f
th e 4 P connector .
3 . Tur n th e ignitio n switc h O N (II) .
Doe s th e chargin g syste m
ligh t com e on ?
Disconnec t th e No . 3 termina l
o f th e 4 P connecto r fro m th e
ground .
Doe s th e chargin g syste m
ligh t g o off ?
Chec k fo r a shor t t o bod y groun d
i n th e L circuit :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e AB S contro l
uni t (C447 ) an d passenger' s
multiple x contro l uni t (C401) ,
a s applicable .
3. Tur n th e ignitio n switc h O N (II) .
Doe s th e chargin g syste m
ligh t sta y off ?
Chec k fo r shor t i n contro l unit(s) :
1 . Tur n th e ignitio n switc h OFF .
2 . Reconnec t th e AB S contro l
uni t connector .
3 . Tur n th e ignitio n switc h O N
(II) , an d chec k th e chargin g
system light .
Did th e ligh t sta y of f whe n yo u
turne d o n th e ignitio n switc h
afte r connectin g AB S contro l uni t
connector ?
Substitute a known-goo d AB S
contro l unit , an d recheck .
ALTERNATO R4P CONNECTO R
Replace th e fuse .
Chec k fo r a blow n chargin g sys -
te m ligh t bulb . I f th e bul b i s OK ,
repai r th e ope n i n th e WHT/BL U Wir
e sid e o f
femal e terminal s
(T o page 4-26)
Tur n th e ignitio n switc h OFF , an d
repai r th e shor t t o groun d in th e
WHT/BL U wire .
Substitut e a known-goo d pas -
senger' s multiple x contro l unit ,
and recheck .
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Cruise Control

Control Unit Input Test (cont'd)

Cavity Wire
Test condition
Test: Desired result

Possible cause if result is not obtained

3

13

7

6

14

12

2

5

10

9

11

1
BLK

LT GRN

LT GRN/BLK

LT GRN/RED

PNK

BLU/WHT

GRY

GRN/WHT

BLU/YEL

BRN

BRN/BLK

BRN/WHT
Under all conditions

Ignition switch ON (II) and

main switch ON

Resume button pushed

Cancel button pushed

Set button pushed

Cancel button pushed

Shift lever in , or

Ignition switch ON (II), and

main switch ON; raise the

front of the vehicle, and rotate

one wheel slowly while

holding the other wheel.

Ignition switch ON (II), main

switch ON; brake pedal

pressed, then released

Brake pedal pressed then

released

Ignition switch ON (II)

Under all conditions

Under all conditions

Under all conditions
Check for continuity to ground:

There should be continuity.

Check for voltage to ground:

There should be battery voltage.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 7, there

should be no voltage on terminal No. 6.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 7, there

should be voltage on terminal No. 6.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 6, there

should be no voltage on terminal No. 7.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 6, there

should be voltage on terminal No. 7.

Check for continuity to ground:

There should be continuity.

NOTE: There should be no continuity

when the shift lever is in other positions.

Check for voltage between the

BLU/ WHT and BLK terminals:

There should be cycle 0 - 5 V or

battery voltage.

Check for voltage to ground:

There should be 0 V with the pedal

pressed, and battery voltage with

the pedal released.

Check for voltage to ground:

There should be battery voltage with

the pedal pressed, and 0 V with the

pedal released.

Attach to ground:

The cruise light in the gauge assembly

should come on.

Check for resistance to ground:

There should be 80 -120

Check for resistance to ground:

There should be 70 -110

Check for resistance to ground:

There should be 40 - 60
• Poor ground (G401, G402)

• An open in the wire

• Blown No. 20 (20 A) fuse in the

under-dash fuse/relay box

• Faulty main switch

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Short between LT GRN/BLK and

LT GRN/RED wires

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Short between LT GRN/BLK and

LT GRN/RED wires

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Faulty A/T gear position switch

• Poor ground (G401, G402)

• An open in the wire

• Faulty vehicle speed sensor (VSS)

• An open in the wire

• Short to ground

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty brake switch

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty brake switch

• An open in the wire

• Blown bulb

• Faulty gauge circuit

• An open in the wire

• Faulty actuator solenoid

• An open in the wireProCarManuals.com

12. Remov e th e vacuu m hose , the n remov e th e clam p
fro m th e under-hoo d fuse/rela y box .
VACUU MHOSE CLAM
P
13. Remov e th e alternato r an d batter y cable s fro m th e
under-hoo d fuse/rela y box , the n remov e th e under -
hoo d fuse/rela y box .
ALTERNATO RCABLE
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
BATTER YCABLE
UNDER-HOO DFUSE/RELAYBOX
14. Disconnec t th e engin e wir e harnes s connecto r o n
th e lef t sid e o f th e engin e compartment .
15 . Remov e th e connecto r an d engin e wir e harnes s
clamp .
CONNECTO R
ENGINE WIR E
HARNES S
CONNECTO R
CLAMP
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
16. Reliev e fue l pressur e b y loosenin g th e servic e bol t
o n th e fue l filte r abou t on e tur n (se e sectio n 11 ).
D o no t smok e whil e workin g o n th e
fue l system . Kee p ope n flam e an d spark s awa y fro m
th e wor k area . Drai n fue l onl y int o a n approve d
container.
17. Remov e th e fue l fee d hos e an d fue l retur n hose .
SERVIC E BOL T
1 2 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
WASHE R
Replace .27 N- m (2. 8 kgf-m ,20 Ibf-ft )
WASHER S
Replace .
FUE L FEE D
HOS E
FUEL RETUR N
HOS E
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12. Remov e th e vacuu m hoses , the n remov e th e clam p
fro m th e under-hoo d fuse/rela y bo x (se e pag e 5-5 ).
13 . Remov e th e batter y cable s fro m th e under-hoo d
fuse/rela y box , the n remov e th e under-hoo d fuse /
rela y box .
UNDER-HOO DFUSE/RELAYBOX
14. Reliev e fue l pressur e b y loosenin g th e servic e bol t
o n th e fue l filte r abou t on e tur n (se e sectio n 11 ).
D o no t smok e whil e workin g o n th efue l system . Kee p ope n flam e an d spark s awa y fro m
th e wor k area . Drai n fue l onl y int o a n approve d
container.
15. Remov e th e fue l fee d hos e an d fue l retur n hose .
FUEL RETUR NHOSEFUEL FEE D
HOS E
FUE L PULSATIO N
DAMPE R
2 2 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
WASHER SReplace.
16. Remov e th e evaporativ e emissio n (EVAP ) caniste r
hos e an d brak e booste r vacuu m hose .
BRAK E BOOSTE RVACUUM HOS E
EVA P CONTRO L
CANISTE R HOS E
17. Disconnec t th e connector , the n remov e th e contro l
box.
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
CONNECTO R CONTRO
L
BOX
BATTER YCABLE
BATTER YCABLE6 x 1. 0 m m12 N- m (1. 2 kgf-m ,8.7 Ibf-ft )
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II. Powertrai n Contro l Modul e (PCM ) Rese t Procedur e
NOTE : Th e PC M memor y settin g is neede d afte r resettin g th e PC M (se e pag e 11-125 ).
Eithe r o f th e followin g action s wil l rese t th e PCM .
• Us e th e OB D II sca n too l o r Hond a PG M Teste r t o clea r th e PCM' s memory .
NOTE : Se e th e OB D II sca n too l o r Hond a PG M Teste r user' s manual s fo r specifi c operatin g instructions .
• Tur n th e ignitio n switc h OFF . Remov e th e BAC K U P RADI O (7. 5 A ) fus e fro m th e under-hoo d fuse/rela y bo x fo r
1 0 seconds .
NOTE : I f th e BAC K U P RADI O (7. 5 A ) fus e i s remove d an d th e ignitio n switc h O N (II) , MI L wil l repor t o n an d
BAC K U P RADI O
(7. 5 A ) FUS EPCM wil l stor e th e DT C P0560 .
UNDER-HOO DFUSE/RELA YBOX
III. Fina l Procedur e (thi s procedur e mus t b e don e afte r an y troubleshooting )
1 . Remov e th e SC S servic e connecto r i f i t i s connected .
NOTE : I f th e SC S servic e connecto r i s connecte d an d ther e ar e n o DTC s store d i n th e PCM , th e MI L wil l sta y
on whe n th e ignitio n switc h is turne d O N (II) .
2. D o th e PC M Rese t Procedure .
3 . Tur n th e ignitio n switc h OFF .
4 . Disconnec t th e OB D II sca n too l o r Hond a PG M Teste r fro m th e Dat a Lin k Connector .
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Back u p Circui t
('00 - 0 1 model ) Th e sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0560 : Lo w Voltag e i n PC M Bac k u p
Circuit .
NOTE: If th e BAC K UP RADI O (7.5 A) fus e is remove d and th e ignitio n switch ON (II) , MIL will repor t on an d PC M will stor e
the DT C P0560 .
— Th e MI L ha s bee n reporte d o n
— DTCP056 0
Proble m verification :
1 . D o th e PC M Rese t Procedure .
2 . Star t th e engine .
I s DT C P056 0 indicated ?
YES
Intermitten t failure , syste m is O K
a t thi s time . Chec k fo r poo r con -
nection s o r loos e wire s a t BAC K
U P RADI O (7. 5 A ) fus e an d PCM .
Chec k th e fuse :
1. Tur n th e ignitio n switc h OFF .2. Inspect the BAC K U P RADI O
(7. 5 A ) fus e i n th e under-hoo d
fuse/rela y box .
I s th e fus e OK ?
NO
YE S
— Repai r shor t i n th e wir e
betwee n th e EC M (D1 ) an d
BAC K U P RADI O (7. 5 A ) fuse .
— Repai r shor t i n th e wir e th e
othe r bac k u p circui t (se e
Powe r Distribution) .
— Replac e th e BAC K U P RADI O
(7. 5 A ) fuse .
PCM CONNECTO R D (22P )
Chec k fo r a n ope n i n th e wir e
(VB U line) :
Measur e voltag e betwee n th e
PC M connecto r termina l D 1 an d
body ground .Wire sid e o f femal e terminal s
I s ther e batter y voltage ?
YES
Repai r ope n i n th e wir e betwee n
PC M (D1 ) an d BUC K U P RADI O
(7. 5 A ) fuse .
Substitut e a known-goo d PC M
an d rechec k ( se e pag e 11-42 fo r
immobilize r information) . I f symp -
tom/indicatio n goe s away , replac e
the origina l PCM .
NO
NO
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PCM CONNECTOR S
Wir e sid e o f femal e terminal s
I s ther e batter y voltage ?
Is th e fus e OK ?
NO
— Repai r shor t i n th e wir e be -twee n th e PC M (C6 ) an d th eNo . 1 4 STARTE R SIGNA L (7. 5
A ) fus e o r th e PGM-F I mai n
relay .— Replac e th e No . 1 4 STARTE RSIGNAL (7. 5 A ) fuse .
Repai r ope n i n th e wir e betwee n
the PC M (C6 ) and th e No . 1 4STARTE R SIGNA L (7. 5 A ) fuse .
YES
Inspec t th e No . 1 4 STARTE R SIG -
NA L (7. 5 A ) fus e in th e under-das h
fuse/rela y box .NO
YE S
Starte r switc h signa l i s OK .
Chec
k fo r a n ope n o r shor t i n th e
wir e (ST S line) :
Measur e voltag e betwee n PC M
connecto r terminal s C 6 an d A2 6
with th e ignitio n switc h i n th estar t positio n (III) .
NOTE : Transmissio n i n o r position .
Inspectio
n o f Starte r Switc h Sig -nal.
Thi s signal s th e PC M whe n th e engin e is cranking .
Starter Switc h Signa l
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