bulb ACURA RL KA9 1996 Service Repair Manual

Check fo r a n ope n in th e wir e o r
bul b (MI L line) :
1. Tur n th e ignitio n switc h OFF .2. Connec t PC M connecto r ter -mina l A 7 an d bod y groun dwith a jumpe r wire .3. Tur n th e ignitio n switc h O N (II) .
Doe s th e MI L com e on ?
YES
Repai r ope n i n th e wire s
betwee n th e PC M (A7 ) an d
gaug e assembly .
Replac e th e MI L bulb .
Substitut e a known-goo d PC M
an d recheck . I f symptom/indica -
tion goe s away , replac e th e origi -nal PCM .
(From pag e 11-70 )
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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

Main Switc h Tes t
1. Remov e th e driver' s switc h pane l (se e sectio n 20 ).
DRIVER' S SWITC H PANE L
TCS SWITC H
CRUISEMAINSWITC H
BULBS(0.84 W x 2)
2. Remov e th e TC S an d cruis e mai n switc h assembl y
fro m th e driver' s switc h panel .
3 . Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g to th e table .
I f ther e is n o continuity , replac e th e switch .
Brake Peda l Positio n Switc h Tes t
1. Disconnec t th e 4 P connecto r fro m th e switch .
Termina l sid e o fmal e terminal s
4P CONNECTO R
BRAKE PEDA L
2. Chec k fo r continuit y betwee n th e terminal s accord -
in g t o th e table .
3 . I f necessary , replac e th e switc h o r adjus t peda l heigh t
(see section 19 ).
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PGM-FI Syste m
MIL Circui t Troubleshootin g (cont'd )
Check fo r a n ope n in th e wir e o r
bul b (MI L line) :
1. Tur n th e ignitio n switc h OFF .2. Connec t PC M connecto r ter -mina l A 7 an d bod y groun dwith a jumpe r wire .3. Tur n th e ignitio n switc h O N (II) .
PCM CONNECTO R A (26P )
Wir e sid e o f femal e terminal s
Doe s th e MI L com e on ?
YES
— Repai r ope n i n th e wire sbetwee n th e PC M (A7 ) an dgaug e assembly .
— Replac e th e MI L bulb .
Substitut e a known-goo d PC M
an d rechec k (se e pag e 11-42 fo r
immobilize r information) . I fsymptom/indicatio n goe s away ,
replac e th e origina l PCM .
NO
MI L (L T GRN/RED )JUMPE
R WIR E
(Fro
m pag e 11-63 )
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Low Fue l Indicato r Syste m
Indicato r Ligh t Testin g
1 . Chec k th e No . 1 3 METE R (7. 5 A ) fus e i n th e under -
dash fuse/rela y box , METE R (1 5 A ) fus e in th e under -
hood fuse/rela y bo x an d gaug e rela y befor e testing .
2. Par k the vehicl e o n leve l ground .
D o no t smok e whil e workin g o n th e
fue l system . Kee p ope n flam e awa y fro m th e wor k
area . Drai n fue l onl y int o a n approve d container .
• I f th e ligh t come s o n withi n 4 minutes , g o t o ste p
8.
• I f th e ligh t doe s no t com e o n withi n 4 minutes ,
go t o ste p 5 .
5 . Remov e th e rea r sea t cushio n (se e sectio n 20 ).
6 . Remov e th e fue l tan k acces s pane l fro m th e floor ,
an d disconnec t th e 3 P connecto r fro m th e fue l gaug e
sendin g unit .
7. Connec t th e No . 1 an d No . 3 terminal s wit h a jumpe r
wire.
• i f th e ligh t come s on , chec k th e sendin g unit .
• I f th e ligh t doe s no t com e on , chec k for :
— an ope n in th e BLU/RE D wir e betwee n th e fue l
uni t an d fue l gaug e assembly .
— blow n bulb .
— poo r groun d (G652) .
FUEL GAUG E SENDIN G UNI T CONNECTO R IC723 )
should g o of f withi n fou r minutes .
8. Ad d 4of fue l (1. 1 U.S . Gal . 0. 9 Imp . Gal) . Th e ligh t
3. Drai n th e fue l int o a n approve d container . The n
instal l th e drai n bol t wit h a ne w washer .
4.
an d tur n th e ignitio n switc h O N (II) . Th e lo w fue l indi -
cato r ligh t shoul d com e o n withi n 4 minutes .
Add les s tha n 8. 5(2. 2 U.S . Gal . 1. 8 Imp . Gal ) o f fuel ,
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DTC Indication Pattern (When the ABS control unit detected a problem three times.):

Turn the ignition switch ON (II). The ABS indicator light comes on for 2 seconds to check the bulb.

The ABS control unit indicates the DTC 3 times.

If you miscount the blinking frequency or if you recheck the blinking frequency, turn the ignition switch OFF then

turn it ON (II) to cycle the ABS indicator light again.

4. Remove the SCS service connector.

NOTE: The Malfunction Indicator Lamp (MIL) will stay on after the engine is started if the SCS service connector is

connected.

5. Remove the ABS B2 (15 A) fuse in the under-hood fuse/relay box for at least 3 seconds to erase the ABS control unit's

memory.ProCarManuals.com

Troubleshooting
ABS Indicato r Ligh t Doe s No t Com e O n
Th e AB S indicato r ligh t doe s no t com e o n whe n th e ignitio n switc h is turne d O N
Whe n th e ignitio n switc h i s turne d O N (II) , th e AB S indicator light driv e transisto r i n th e AB S contro l uni t i s activate d b y
self-bia s an d turn s th e AB S indicato r ligh t on .
Possibl e cause s fo r a n AB S indicato r ligh t tha t doe s no t com e on :
Blow n METE R (1 5 A ) fus e o r METE R (7. 5 A ) fus e
Mete r rela y stuc k OF F
Ope n circui t betwee n th e METE R (1 5 A ) fus e an d AB S indicato r ligh t
Ope n circui t betwee n th e METE R (7. 5 A ) fus e an d bod y groun d
Blow n AB S indicato r ligh t bul b
Ope n circui t betwee n th e AB S indicato r ligh t an d AB S contro l uni t
Ope n circui t betwee n th e AB S contro l uni t an d bod y groun d
Poor bod y groun d
Fault y AB S contro l uni t
The AB S indicato r ligh t doe s no t
com e o n whe n th e ignitio n switc h
i s turne d O N (II) .
Chec k th e METE R (1 5 A ) fus e
i n th e under-hoo d fuse/rela y bo x
an d th e METE R (7. 5 A ) fus e in th e
under-das h fuse/real y box . NOTE
: I f th e brak e syste m ligh t come s on , th e
circui t betwee n th e batter y an d gaug e assem -
bly is OK .
Are th e fuse s OK ?Replac e th e fus e an d recheck .
NOTE : Reinstal l th e fuse s i f the y ar e OK . GAUG
E ASSEMBL Y 22 P CONNECTO R
Chec k fo r a n ope n in th e IG 1 cir -
cuit :
1 . Disconnec t th e gaug e assem -
bl y 22 P connector .
2. Tur n th e ignitio n switc h O N (II) .3. Measur e th e voltag e betwee n
th e gaug e assembl y 22 P con -
necto r termina l No . 2 2 an d
bod y ground .
I s ther e batter y voltage ? Mete
r rela y stuc k OFF .
Repai r ope n in th e wir e betwee n
th e METE R (1 5 A ) fus e i n th e
under-hoo d fuse/rela y bo x an d
gaug e assembly .
Repai r ope n in th e wir e betwee n
th e METE R (7. 5 A ) fus e i n th e
under-das h fuse/rela y bo x an d
bod y ground .
Replac e th e under-hoo d fuse /
rela y bo x o r under-das h fuse /
rela y box . (Ope n circui t insid e
th e fuse/rela y box ) Wir
e sid e o f femal e terminal s
Is th e bul b OK ?Replac e th e AB S indicato r ligh t
bulb .
(T o pag e 19-44 )
Chec
k th e AB S indicato r ligh t bul b
i n th e gaug e assembly .
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Troubleshooting
DTC 2-1 : Parkin g Brak e
The AB S contro l uni t monitor s th e parkin g brak e signa l durin g th e regula r diagnosi s (durin g driving) .
I t turn s th e AB S indicato r ligh t o n if i t detect s th e parkin g brak e O N signa l fo r 3 0 seconds .
Possibl e causes :
Drivin g wit h th e parkin g brak e applie d
Lo w flui d leve l i n th e maste r cylinde r reservoi r
Blow n brak e syste m ligh t bul b
Ope n circui t o r shor t t o bod y groun d betwee n th e brak e syste m ligh t an d AB S contro l uni t
Parkin g brak e switc h stuc k O N
Shor t t o bod y groun d betwee n th e brak e syste m ligh t an d parkin g brak e switc h
Brak e flui d leve l switc h stuc k O N
Shor t t o bod y groun d betwee n th e brak e syste m ligh t an d brak e flui d leve l switc h
Faulty AB S contro l uni t
Doe s th e brak e syste m ligh t
com e on ?
Chec k fo r a n ope n in th e IG 1 cir -
cuit :
1 . Disconnec t th e gaug e assem -
bl y 22 P connector .
2 . Measur e th e voltag e betwee n
terminal No . 2 2 an d bod yground .
Is ther e batter y voltage ?
Chec k th e brak e syste m ligh t bulb .
Is th e bul b OK ?
(To pag e 19-61 ) (T
o pag e 19-62 ) GAUG
E ASSEMBL Y 22 P CONNECTO R
Mete r rela y stuc k OFF .
Repai r ope n in th e wir e betwee n
th e METE R (1 5 A ) fus e i n th e
under-hoo d fuse/rela y bo x an d
gaug e assembly .
Repai r ope n i n th e wir e be -
twee n th e METE R (7. 5 A ) fus e
i n th e under-das h fuse/rela y
bo x an d bod y ground .
Replac e th e brak e syste m ligh t
bulb .
With engin e running , AB S indi -cato r ligh t i s ON .
Wit h th e SC S servic e connec -
to r connecte d (se e pag e 19-40 ),
DT C 2- 1 i s indicated .
Chec k th e brak e syste m ligh t
powe r source :
1. Tur n th e ignitio n switc h O N (II) .2. Pres s th e parkin g brak e pedal .
Wire sid e o f femal e terminal s
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Troubleshooting
ABS Indicato r Doe s No t Com e O n
AB S indicato r doe s no t com e o nwhe n th e ignitio n switc h i sturne d O N (II) .
Chec k th e indicato r powe r
sourc e circuit :
Turn th e ignitio n switc h O N (II) .
Doe s th e brak e syste m indi -cato r com e on ?
Chec k th e AB S contro l unit :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e AB S contro lunit 12 P connector .3. Tur n th e ignitio n switc h O N (II) .
Doe s th e AB S indicato r
com e on ?
Is th e bul b OK ?
Chec k fo r a shor t t o bod y groun d
i n th e WAL P circuit :
1 . Disconnec t th e gaug e assem -
bl y 30 P connector .
2 . Chec k fo r continuit y betwee n
termina l No . 2 2 an d bod yground .
I s ther e continuity ?
(T o pag e 19-123 ) Gaug
e rela y stuc k OFF .
Blow n METE R (1 5 A ) fus e in th e
under-hoo d fuse/rela y box .
Blow n METE R (7. 5 A ) fus e i n
th e under-das h fuse/rela y box .
Repai r ope n in th e wir e betwee n
th e METE R (1 5 A ) fus e an d th e
gaug e assembly .
Repai r ope n i n th e wir e
betwee n th e METE R (7. 5 A )
fus e an d bod y ground .
Replac e th e under-hoo d fuse /
rela y bo x o r under-das h fuse /
rela y box . (Ope n circui t insid e
the box. )
Chec k fo r loos e AB S contro l uni t
connectors . I f necessary , substi -
tut e a known-goo d AB S contro l
uni t an d recheck .
Replac e th e AB S indicato r bulb .
GAUGE ASSEMBL Y 30 P CONNECTO R
Repai r shor t t o bod y groun d in th e
wir e betwee n th e gaug e assembl y
and th e AB S contro l unit .Wire sid e o f femal e terminal s
Chec
k th e AB S indicato r bul b i n
th e gaug e assembly .
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