fuse box ACURA RL KA9 1996 Service User Guide

Emission Contro l Syste m
Exhaus t Ga s Recirculatio n (EGR ) Syste m (cont'd )
(From pag e 11-87 )
Chec k fo r a shor t i n th e wir e
(EGR L line) :Chec k fo r continuit y betwee n
PC M connecto r termina l D1 7 an d
th e bod y ground .
I s ther e continuity ?
YES
Repai r shor t i n th e wir e betwee n
th e EG R valv e an d PC M (D17) .
(Fro m pag e 11-87 ) Repai
r ope n i n th e wir e betwee n
th e EG R valv e an d th e PC M (D17) .
Chec k fo r a n ope n in th e wir e (IG 1
line) :1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e contro l bo x
connector .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Measur e voltag e betwee n bod y
groun d an d th e contro l bo x
connecto r termina l No . 1 .
I s ther e batter y voltage ?
YES
Chec k th e vacuu m routing :
1 . Reconnec t th e vacuu m pump /
gaug e to th e No . 1 1 hose .
2 . Star t th e engin e an d le t i t idle .
3. A t th e contro l bo x side , con -nect th e batter y positiv e ter -
mina l t o th e EG R valv e vacu -
u m contro l solenoi d valv e
connecto r termina l No . 1 .4. Whil e watchin g th e vacuu m
gauge , connec t th e batter y neg -
ativ e termina l t o th e EG R valv e
vacuu m contro l solenoi d
valv e connecto r termina l No . 2 .
I s ther e abou t 26. 7 kP a
(20 0 mmHg , 8. 0 in.Hg ) o f vacu -
u m withi n 1 second ?
YES
(To pag e 11-89 )
NO
Repai r ope n in th e wir e betwee n
th e EG R valv e vacuu m contro l
solenoi d valv e an d No . 2 0 EC U
(PCM ) (2 0 A ) fus e in th e under -
das h fuse/rela y box .
Chec k th e vacuu m hoses :1. Tur n th e ignitio n switc h OFF .
2 . Inspec t th e No . 1 1 an d No . 3
hose s fo r leaks , restriction s o r
misrouting .
Are th e hose s OK ?Correc t a s necessary .
Replace th e EG R valv e vacuu mcontrol solenoi d valve .
ProCarManuals.com

From pag e 14-4
Chec k Torqu e Converte r Clutc h
Solenoi d Valv e A fo r a Shor t
Circuit :
1 . Disconnec t th e 2 P connecto r
from th e torqu e converte rclutch solenoi d valve s A an d B .2. Chec k fo r continuit y betwee n
th e E1 3 an d A2 6 terminals .
Is ther e continuity ?
NO
Repai r shor t t o groun d in th e wir ebetwee n th e E1 3 termina l an d th etorqu e converte r clutc h solenoi dvalve A .
Measur e Torqu e Converte r Clutc h
Solenoi d Valv e A Resistanc e a t
th e Solenoi d Connector :
Measur e th e resistanc e betwee n
the No . 2 termina l o f th e torqu econverte r clutc h solenoi d connec -tor an d bod y ground .
Is th e resistanc e 12-25
NO
Chec k fo r ope n i n th e wir e
betwee n th e E1 3 termina l an d th e
torqu e converte r clutc h solenoi d
valv e A .
I s ther e voltage ?
YES
Chec k fo r ope n i n th e wir e
betwee n th e E 1 termina l an d th e
under-hoo d fuse/rela y box .
Replac e th e torqu e converte r
clutc h solenoi d valve s A an d B .
Chec
k th e V B SO L Voltage :
1. Tur n th e ignitio n switc h O N (II) .2. Measur e th e voltag e betwee n
th e E 1 an d A2 6 terminals .
ProCarManuals.com

From pag e 14-6
Chec k Torqu e Converte r Clutc h
Solenoi d Valv e B fo r a Shor t
Circuit :
1 . Disconnec t th e 2 P connecto r
fro m th e torqu e converte r
clutch solenoi d valve s A an d B .2. Chec k fo r continuit y betwee n
th e E2 6 an d A2 6 terminals .
I s ther e continuity ?
NO
Repai r shor t t o groun d in th e wir e
betwee n th e E2 6 termina l an d th e
torqu e converte r clutc h solenoi d
valv e B .
Measur e Torqu e Converte r Clutc h
Solenoi d Valv e B Resistanc e a t th e
Solenoi d Connector :
Measure th e resistanc e betweenthe No . 1 termina l o f th e torqu e
converte r clutc h solenoi d connec -
tor an d bod y ground .
Is th e resistanc e 12-25
NO
Chec k fo r ope n i n th e wir e
betwee n th e E2 6 termina l an d th e
torqu e converte r clutc h solenoi d
valve B .
Is ther e voltage ? Chec
k fo r ope n i n th e wir e
betwee n th e E 1 termina l an d th e
under-hoo d fuse/rela y box .
Chec
k th e V B SO L Voltage :
1. Tur n th e ignitio n switc h O N (II) .2. Measur e th e voltag e betwee nthe E 1 an d A2 6 terminals .
Replace th e torqu e converte r
clutc h solenoi d valve s A an d B .
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Electrical Troubleshooting

Troubleshooting Flowchart — A/T Clutch Pressure Control Solenoid Valve

• OBD II Scan Tool indicates Code

P0748.

• Self-diagnosis indicator light

indicates Code 16.

Measure A/T clutch pressure con-

trol solenoid valve Resistance at

Solenoid Connector:

1. Disconnect the shift solenoid

valve/A/T clutch pressure con-

trol solenoid valve harness 4P

connector.

2. Measure the resistance of the

A/T clutch pressure control

solenoid valve.

Is the resistance approx. 5 ?

YES

Check A/T Clutch Pressure

Control Solenoid Valve for a

Short Circuit:

1. Disconnect the E (26P) con-

nector from the PCM.

2. Check for continuity between

body ground and the E16 termi-

nal and E3 terminal individually.

Is there continuity?

NO

Measure A/T Clutch Pressure

Control Solenoid Valve Resistance:

1. Connect the shift solenoid

valve/A/T clutch pressure con-

trol solenoid valve harness 4P

connector.

2. Measure the resistance

between the E16 and E3 ter-

minals.

Is the resistance approx. 5 ?

YES

Check the VB SOL Voltage:

1. Disconnect the A (26P) and E

(26P) connectors from the

PCM.

2. Turn the ignition switch ON (II).

3. Measure the voltage between

the E1 and A26 terminals.

Is there voltage?

YES

Check for loose PCM connectors.

If necessary, substitute a known-

good PCM and recheck.
Possible Cause

• Disconnected A/T clutch pres-

sure control solenoid valve con-

nector

• Short or open in A/T clutch

pressure control solenoid valve

wire

• Faulty A/T clutch pressure con-

trol solenoid valve

• Open VB SOL line

Replace the A/T clutch pressure

control solenoid valve.

Repair short in the wires

between the E16 and E3 termi-

nals and the A/T clutch pressure

control solenoid valve.

Repair loose terminal or open in

the wires between the E16 and E3

terminals and the A/T clutch pres-

sure control solenoid valve.

Check for open in the wire

between the E1 terminal and the

under-hood fuse/relay box.ProCarManuals.com

Disconnect the connectors from the unit

Cavity Wire Test condition
Test: Desired result
Possible cause if result is not obtained

A1

A7
BLK
Under all conditions
Check for continuity to ground:

There should be continuity.
• An open in the wire

Reconnect the connectors from the unit

Cavity Wire Test condition
Test: Desired result
Possible cause if result is not obtained

B2

B3

B4

B5

A12

A3

A9

A6

A10

A8

A5

A2

A4

B12

B14
BLU/YEL

YEL/GRN

ORN

WHT/GRN

BLU

PUR

ORN

ORN

BLU

BLK

ORN

GRN

PUR

PNK

GRN
Ignition switch in ACC (I)

Ignition switch in ACC (I)

With the ignition switch

OFF, press and hold the

"DOT" button. Turn the

ignition switch from OFF

to ACC three times and

back to ACC, then release

the "DOT" button.

Ignition switch in ACC (I)

Ignition switch in ACC (I)

Ignition switch turned

OFF

With the ignition switch

OFF, press and hold the

"DOT" button. Turn the

ignition switch from OFF

to ACC three times and

back to ACC, then release

the "DOT" button.

Ignition switch in ACC (I)

Under all conditions

Ignition switch in ACC (I)

Ignition switch in ACC (I)

OnStar "DOT" button

pushed

Ignition switch in ACC (I)

Ignition switch in ACC (I)

Ignition switch in ACC (I)

Ignition switch in ACC (I) On-

Star "DOT" button pushed

Ignition switch in ACC (I)
Check for voltage to ground:

There should be approx 8V.

Check for voltage to ground:

"DOT" button pushed: 280mV

"OnStar" button pushed: 1V

"Emergency" button pushed: 1.7V

Check for voltage to ground:

There should be 4V.

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

There should be no voltage.

Check for voltage to ground:

There should be 10V.

Check for voltage to ground:

There should be 4V.

Check for voltage to ground:

There should be less than 1V.

Check for continuity to ground:

There should be continuity.

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

"DOT" button pushed: 280mV

"OnStar" button pushed: 1V

"Emergency" button pushed: 1.7V

Check for voltage to ground:

There should be about 8V.

Check for voltage to ground:

There should be about 4V.
• Blown No. 56 (7.5 A) fuse in the

under-hood fuse/relay box

• An open in the wire

• Faulty OnStar button

• An open in the wire

• Faulty OnStar button

• An open in the wire

• Faulty OnStar button

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• Poor ground (G401, G402)

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• Faulty audio unit

• An open in the wire

• Faulty SRS unit

• An open in the wireProCarManuals.com

Symptom Troubleshootin g
No pictur e is displaye d
Diagnosti c Test : Navigatio n Syste m Lin k
1 . Chec k th e No . 5 6 (7.5A ) fus e in th e under-hoo d fuse /
rela y bo x an d No . 4 (10A ) fus e in th e under-das h fuse /
relay box , an d reinstal l th e fuse s i f the y are-OK .
Are the fuses OK?
YES—G o to ste p 2 .
NO—Replac e th e fus e an d recheck .
2 . Tur n th e ignitio n switc h t o AC C (I) .
3 . Operat e th e radi o an d liste n t o th e audio .
Can audio be heard?
YES—G o to ste p 4 .
NO—Chec k th e AC C circuit .
4 . Tur n th e ignitio n switc h O N (II) .
5 . Measur e th e voltag e betwee n bod y groun d an d navi -
gatio n uni t connecto r C (8P ) terminal s No . 1 an d No .
2 individually .
Wire sid e o f femal e terminal s
Is there battery voltage?
YES—G o to ste p 6 .
NO—I f th e + B wir e doe s no t hav e voltage , repai r
ope n in th e wir e betwee n th e under-hoo d fus e rela y
bo x an d th e navigatio n unit .
I f th e AC C wir e doe s no t hav e voltage , repai r ope n in
th e wir e betwee n th e under-das h fus e rela y bo x an d
th e navigatio n unit . 6
. Chec k fo r continuit y betwee n navigatio n uni t connec -
to r C (8P ) termina l No . 4 an d bod y ground .
NAVIGATIO N UNI T CONNECTO R C (8P )
Wire sid e o f femal e terminal s
Is there continuity?
YES—G o to ste p 7 .
NO—Repai r ope n i n th e wir e betwee n th e navigatio n
unit an d bod y groun d (G603) .
7 . Tur n th e ignitio n switc h OFF .
8 . Perfor m th e force d startin g o f th e displa y (se e pag e
23-52 )
Is the diagnosis menu of the picture diagnosis dis-
played?
YES—G o int o th e Diagnosti c mod e an d us e th e "Nav i
Syste m Link " diagnosti c (se e pag e 23-40 ) t o chec k
the links .
NO—G o to ste p 9 .
9 . Shiel d th e displa y uni t fro m th e su n wit h you r hand ,
an d chec k tha t th e displa y i s blac k (onl y bac k ligh t i s
ON) .
Can you see the back light?
YES—Replac e th e navigatio n uni t
(see pag e 23-53 ).
NO—Replac e th e displa y uni t (se e pag e 23-53 ).
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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 .
ProCarManuals.com

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 .
ProCarManuals.com

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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