1996 ACURA RL KA9 ignition

- +

BODY

4. Turn the ignition switch OFF.

5. Disconnect the display unit connector B (20P).

6. Check for continuity between display unit connector

B (20P) terminal No. 10 and body ground.

DISPLAY UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity?

YES—Go to step 7.

NO—Repair the open in the wire between the display

unit and body ground (G251).

7. Disconnect the navigation unit connector A (20P).

8. Check for continuity between body ground and dis-

play unit connector B (20P) terminal No. 5 and No. 15

individually.

DISPLAY UNIT CONNECTOR B (20P)

DISP BUS {+)

(BLK)

Wire side of female terminals

Is there continuity?

YES—There is a short to body ground in the circuit

between the display unit and the navigation unit.

Replace the affected shielded harness.

NO—Go to step 9.
9. Check for continuity between display unit connector

B (20P) terminal No. 5 and navigation unit connector

A (20P) terminal No. 10.

DISPLAY UNIT CONNECTOR B (20P)

DISP BUS {+} (BLK)

Wire side of female terminals

Is there continuity?

YES—Go to step 10.

NO—There is an open in the circuit between the dis-

play unit and the navigation unit. Check for poor con-

nections or loose terminals at the display and naviga-

tion units. If a poor connection or loose terminal is

found, replace the affected shielded harness.

(cont'd)ProCarManuals.com

+
BODY
Navigatio n Stay s o n wit h ignitio n switc h of f
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 , re-ente r th e anti-thef t code ,
an d re-initializ e th e navigatio n system .
1. Wit h th e ke y ou t o f ignition .
Does the navigation screen stay on?
YES—G o to ste p 2 .
NO—Th e syste m is O K a t thi s time .
2 . Th e ca r ma y hav e bee n use d a s a demonstratio n
vehicl e a t a n even t lik e a n aut o show . I n thes e events ,
powe r i s ofte n jumpere d t o th e navigatio n syste m s o
tha t th e ignitio n ke y i s no t neede d i n th e vehicle . A t
th e en d o f th e show , th e jumpe r wir e ma y no t hav e
bee n removed . Chec k th e navigatio n uni t "C " con -
necto r (8P ) fo r a "non-factory " jumpe r wir e in serie s
wit h th e factor y cable .
Is there jumper wire?
YES—Remov e th e jumpe r wire , an d re-test .
NO—G o t o ste p 3 . 3
. Th e displa y o r audi o uni t ma y hav e bee n jumpere d
behin d th e das h t o allo w th e navigatio n syste m to
ru n withou t th e ignitio n key .
Doe s the radio function with the ignition switch off?
YES—G o to ste p 4 .
NO—G o t o ste p 5 .
4 . Remov e th e displa y uni t an d chec k t o se e if th e audi o
uni t connector s hav e a non-factor y jumpe r wir e i n
serie s wit h th e factor y connector .
Is there a jumper wire?
YES—Remov e th e jumpe r wire , an d re-test .
NO—G o to ste p 5 .
5. Chec k th e interio r light s wit h th e ignitio n switc h off .
Can you turn on the interior lights with the ignition
switch off?
YES—Troubleshoo t the AC C circuit .
NO—Replac e th e navigatio n uni t
(se e pag e 23-53 ).
23-3 9
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Ignition Syste m
Componen t Locatio n Inde x
IGNITIO N COIL STest, pag e 4-2 1
SPAR K PLUG S
Inspection , pag e 4-2 2
NOIS E CONDENSE R
Test , pag e 4-1 9
IGNITION CONTRO L MODUL E (ICM )
Input Test , pag e 4-2 0
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Ignition Syste m
Ignition Timin g Inspectio n
SRS component s ar e locate d in thi s area . Revie w th e SR S
componen t locations , precautions , an d procedure s i n th e
SR S (sectio n 24 ) befor e performin g repair s o r service .
1 . Star t th e engine . Hol d th e engin e a t 3,00 0 rp m wit h
no loa d (shif t leve r i n o r position ) unti l th e
radiato r fa n come s on , the n le t i t idle .
2 . Pul l ou t th e servic e chec k connecto r locate d unde r
th e glov e box . Connec t th e GRN/BL K an d RE D wir e
terminal s wit h th e specia l tool .
SERVIC E CHEC K CONNECTO R (2P )
NOTE : Locate d unde r th e glov e bo x
SC S SERVIC E CONNECTO R
(07PAZ-0010100 )
3. Chec k th e idl e spee d (se e pag e 4-19 ).
4 . Remov e th e engin e cove r (se e sectio n 5 ).
5 . Connec t a timin g ligh t t o th e No . 1 ignitio n coi l wires ;
while th e engin e idles , poin t th e timin g ligh t towar d
the pointe r o n th e timin g bel t cover .
No. 1 IGNITIO NCOIL WIRE S
TIMING LIGH T
CRANKSHAF T PULLE Y
6. Inspec t ignitio n timin g a t idl e speed .
Ignitio n Timing :
1 5 ± 2° BTD C (RED ) a t 65 0 ± 5 0 rp m wit h shif t leve r
in o r positio n an d electrica l system s turne d
off.
WHIT E MAR K
POINTER
CRANKSHAF T PULLE Y
RED MAR K
7. I f th e ignitio n timin g i s incorrect , replac e th e PC M
(ther e i s n o wa y t o adjus t ignitio n timing) .
8 . Disconnec t th e specia l too l fro m th e servic e chec k
connecto r (2P) .
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Ignition Syste m
Ignition Contro l Modul e (ICM ) Inpu t Tes t
NOTE : Se e sectio n 1 1 i f th e malfunctio n indicator lamp (MIL ) blinks . Disconnec t th e 8 P connecto r fro m th e ignitio n contro l
modul e (ICM) . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
I f an y terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
— If an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e IC M mus t b e faulty ; replac e it .
Wir e sid e o ffemal e terminal s
ICM
8P CONNECTO R
TrmlWire Tes
t conditio n Test: Desire d resul t Possibl
e caus e if resul t i s no t obtaine d
2
7
4
3
1
8
6
5
BLK3
BLK4
WHT1
WHT/GR N
WHT/BLK
WHT/BLU
RED/GR N
WHT/RED
Under al l
condition s
Ignitio n switc h O N
(ID
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r voltag e t o ground :
Ther e shoul d b e batter y
voltage . •
Poo r groun d (G151 )
• A n ope n in th e wir e
• Blow n 3 0 A fus e in th e under-das h
fuse/rela y bo x
• Fault y ignitio n coi l
• A n ope n i n th e wir e
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Ignition Coi l Tes t
1. Tur n th e ignitio n switc h OFF .
2 . Remov e th e stru t brace , the n remov e th e engin e
cove r (se e sectio n 5 ).
3 . Remov e th e ignitio n coil .
4 . Usin g a n ohmmeter , measur e resistanc e betwee n
th e terminals . Replac e th e coi l i f th e resistanc e i s
no t withi n specification .
NOTE : Resistanc e wil l var y wit h th e coi l tempera -
ture ; specificatio n is a t 77° F (25°C) .
Primar y Windin g Resistanc e
(betwee n th e No . 1 an d No . 2 terminals )
0.9- 1.1 ohm s
I f th e resistanc e i s no t withi n specification ,
replac e th e coil .
I f th e resistanc e i s OK , bu t othe r troubleshootin g
doesn' t revea l th e caus e o f th e problem , substi -
tut e a known-goo d ignitio n coi l an d chec k engin e
operatio n again .
I f th e engin e the n run s OK , replac e th e origina l
coil .
Termina l
sid e o f mal e
terminal s
IGNITIONCOIL
SECONDAR YWINDINGTERMINA L
SECONDAR YWINDINGTERMINA L
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Ignition Syste m
Spark Plu g Inspectio n
1. Inspec t th e electrode s an d cerami c insulato r for :
Wor n o r deforme delectrode s
Damagedgasket
Cracke dinsulato r
Improper ga pOil-foulin gCarbon deposit sCracked cente relectrod e insulato r
Burned o r wor n electrode s ma y b e cause d by :
Advance d ignitio n timin g
Loose spar k plu g
Plu g hea t rang e to o ho t
Insufficien t coolin g
Foule d plu g ma y b e cause d by :
Retarde d ignitio n timin g
Oil i n combustio n chambe r
Incorrec t spar k plu g ga p
Plug hea t rang e to o col d
Excessiv e idling/lo w spee d runnin g
Clogge d ai r cleane r elemen t
Deteriorate d ignitio n coi l o r ignitio n wire s
2.D o no t adjus t th e ga p o f platinu m ti p plugs ; replac e
th e spar k plu g i f th e ga p i s ou t o f specificatio n o r i f
th e cente r electrod e i s rounded .
Electrod e Gap :
Standar d
Servic e Limi t
1.1 m m (0.04 3 in )
1. 3 m m (0.05 1 in )
Platinu m tip plug :Do no t adjus t th e gap ;replac e th e spar k plu g i f th egap is ou t o f specificatio n o rif th e cente r electrod e i srounded .
3. Replac e th e plu g a t th e specifie d interval , o r i f th e
cente r electrod e is rounde d a s show n below :
ROUNDE D ELECTROD E
NOTE: Us e onl y th e spar k plug s liste d below .
Spar k Plug s
PFR5L-1 1 (NGK )
PK16PR-L1 1 (DENSO )
4.Appl y a smal l quantit y o f anti-seiz e compoun d t o
th e plu g threads , an d scre w th e plug s int o th e cylin -
de r hea d finger-tight . The n torqu e the m to 1 8 N- m
(1. 8 kgf-m , 1 3 Ibf-ft) .
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