1996 ACURA RL KA9 service reset

PGM-FI System

Primary Heated Oxygen Sensor (HO2S) (Sensor 1) (cont'd)

Troubleshooting Flowchart

Is DTC P0133 and/or P0153

indicated?
NO

YES
Intermittent failure, system is OK

at this time. Check for poor con-

nections or loose terminals at

C251, C254 (located at right shock

tower), C119 (right primary H02S

(Bank 1, Sensor 1)) or C126 (left

primary H02S (Bank 2, Sensor

1))*
and
PCM.
— The MIL has been reported on.

— DTC P0133 and/or P0153

stored.

Problem verification:

1. Do the PCM Reset Procedure.

2. Start the engine. Hold the

engine at 3,000 rpm with no

load (in Park or neutral) until

the radiator fan comes on.

3. Connect the SCS service con-

nector.

4. Test-drive under following

conditions.

— 55 mph (88 km/h) steady

speed

— Transmission in posi-

tion

— Until readiness code comes

on

Replace the primary HO2S (Sen-

sor 1).ProCarManuals.com

PGM-FI System

Barometric Pressure (Baro) Sensor

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P2227: A range/performance problem in the

Barometric Pressure (BARO) Sensor circuit.

Is DTC P2227 indicated?
Intermittent failure, system is OK

at this time.

YES

Substitute a known-good PCM

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
PCM.
Problem verification:

1. Do the PCM reset procedure.

2. Connect the SCS service con-

nector.

3. Start the engine. Hold the

engine at 3,000 rpm with no

load (in Park or neutral) until

the radiator fan comes on,

then let it idle.

4. Test-drive with the transmis-

sion in position.

5. Accelerate for five seconds

using wide open throttle.
— The MIL has been reported on.

— DTC P2227 is stored.ProCarManuals.com

Muting Logi c
Wheneve r th e navigatio n syste m is givin g guidance ,
fron t speaker s ar e muted . Whe n th e voic e contro l sys -
te m is bein g used , al l o f th e speaker s ar e muted .
Whe n usin g On-Star , bot h th e audi o syste m an d th e
navigatio n syste m ar e muted , an d th e voic e contro l
switc h (TAL K an d BAC K buttons ) i s disabled .
Voice Contro l Limitation s
Before assumin g tha t a voic e contro l complain t i s hard -
war e related , ensur e tha t th e voic e contro l syste m is be -
in g operate d correctl y (se e "Voic e recognitio n doe s no t
work" , pag e 23-35) .
LCD Displa y Uni t Limitation s
• I n col d temperatures , th e displa y ma y sta y dar k fo r th e
firs t 2 o r 3 minute s unti l i t warm s up .
• Whe n th e displa y i s to o ho t becaus e o f direc t summe r
sunlight , i t wil l remai n dar k unti l th e temperatur e
drops .
• Whe n th e humidit y i s hig h an d th e interio r tempera -
tur e i s low , th e displa y ma y appea r cloudy . Th e dis -
pla y wil l clea r u p afte r som e use .
• Fingerprint s o n th e touc h pane l ma y sometime s b e
noticeabl e becaus e o f th e panel' s low-reflectio n coat -
ing. Whe n cleanin g th e panel , wip e i t gentl y wit h a
sof t cloth . T o avoi d scratchin g th e panel , d o no t ru b
to o hard , o r us e abrasiv e cleaner s o r sho p towels .
• Th e touc h pane l i s a n infrare d system , s o ther e i s n o
nee d t o pres s hard . I f a touc h switc h doe s no t functio n
immediately , shif t you r finge r slightly , an d touc h i t
again .
Note : Inpu t ma y b e affecte d b y direc t sunlight .
Symptom Duplicatio n
• Whe n th e sympto m ca n b e duplicated , follo w th e self -
diagnosti c procedure s an d th e appropriat e trou -
bleshootin g procedures .
• Whe n th e sympto m doe s no t reappea r o r onl y reap -
pear s intermittently , as k th e custome r abou t th e condi -
tion s whe n th e sympto m occured .
-Tr y t o establis h i f outsid e interferenc e ma y hav e
bee n th e cause .
-Tr y t o duplicat e th e sympto m unde r th e sam e condi -
tion s th e custome r wa s experiencing .
-Vibration , temperatur e extremes , an d moistur e (dew ,
humidity ) ar e factor s tha t ar e difficul t t o duplicate .
- Inspec t th e vehicl e fo r after-marke t electroni c device s
(vehicl e locators , amps , rada r detectors , etc) that
ma y b e hidden .
Service Precaution s
• Befor e disconnectin g th e battery , mak e sur e yo u hav e
th e anti-thef t code s fo r th e radi o an d th e navigatio n
system , an d writ e dow n th e frequencie s fo r th e radio' s
prese t buttons .
• Whe n th e batter y i s disconnected , th e interna l GP S
cloc k
is rese t to "0:00" . The cloc k will rese t to th e cor -
rec t tim e afte r th e syste m finishe s GP S initialization .
• Afte r reconnectin g th e battery , yo u hav e t o wai t t o ge t
the initia l signa l fro m th e satellite , whic h ma y tak e fro m
10 to 4 5 minutes . Follo w th e instruction s o n th e screen .
• Afte r reconnectin g th e battery , d o th e powe r windo w
control uni t resettin g procedure .
• Befor e returnin g th e vehicl e t o th e customer , ente r th e
radi o code , the n ente r th e customer' s radi o statio n
presets , an d se t th e clock . D o th e engin e contro l mod -
ul e (PCM ) idl e lear n procedure .
After Servicing-Ma p Matchin g
• Par k th e vehicl e in a n are a wher e th e GP S satellit e sig -
nal s wil l b e unobstructed . Mak e sur e th e GP S indica -
to r o n th e ma p scree n i s green .
• Driv e th e vehicl e 1 mil e befor e enterin g a destinatio n
an d confir m th e roa d bein g use d i s displaye d a t th e
botto m o f th e scree n (ma p matched) .
• Ente r th e deale r addres s an d confir m th e syste m
route s an d perform s normally .
• Clea r an y previou s destination s tha t ma y hav e bee n
entere d fo r testin g purposes .
Obtaining A Navigatio n DV D
If th e navigatio n DV D is los t o r damaged , o r yo u nee d a
yearl y updat e DVD , yo u hav e 2 way s t o purchas e one .
Yo u ca n eithe r cal l (888 ) 549-3798 , o r orde r on-lin e a t
www.Acura.com .
Both method s requir e a credi t card . Th e DV D fo r thi s
mode l ha s a n orang e label , an d canno t b e ordere d
throug h th e part s system . Th e followin g DVD s wil l no t
wor k in thi s navigatio n system :
• Earlie r mode l Acur a Navigatio n DVD s (blac k label )
• Ma p softwar e program s manufacture d b y othe r com -
panie s
• DV D movies , o r DVD s containin g audi o recording s
Updat e DVD s ar e availabl e fo r purchas e usuall y i n th e
fal l o f eac h year . The y ma y contai n th e following :
• Enhance d ma p an d Point s o f interes t (PO D coverag e
• Fixe s fo r mino r softwar e bug s
• Additiona l feature s
Note : Updat e i s o f cours e optional , an d ther e i s n o pro -
gra m to provid e fre e DVD s containin g yearl y mappin g
updates.
ProCarManuals.com

The scan tool indicates Diagnostic Trouble Code (DTC) P0420: Insufficient flow in the Exhaust Gas Recirculation

(EGR)
system.

Description

Deterioration (clogging, leakage, etc.) in the EGR line or EGR valve is detected by means of the changes in manifold abso-

lute pressure before and after the operation of the EGR valve.

If deterioration has been detected during two consecutive driving cycles, the MIL will come on and DTC P0401 will be

stored.

Possible Causes

• Clogging, leakage in the EGR line

• Faulty EGR valve

Troubleshooting Flowchart

Is DTC P0401 indicated?
Intermittent failure, system is OK

at this time.

YES

Clean the intake manifold EGR

port and EGR passage with car-

buretor cleaner.

Clean the passage inside the

EGR valve with carburetor

cleaner or replace the valve.
NO
Problem verification:

1. Do the PCM Reset Procedure.

2. Connect the ACS service con-

nector.

3. Test-drive under the following

conditions.

— Without any electrical load

— Transmission in posi-

tion

— Decelerate from 55 mph

(88 km/h) for at least 5 sec-

onds.
The MIL has been reported on.

DTC P0401 is stored.ProCarManuals.com

Checking th e Diagnosti c Troubl e Cod e (DTC )
wit h th e Servic e Chec k Connecto r an d Specia l Too l
Whe n th e PC M sense s a n abnormalit y in th e inpu t o r outpu t systems , th e indicato r ligh t i n th e gaug e assembl y wil l blink .
Whe n th e Servic e Chec k Connecto r (locate d unde r th e das h o n th e passenge r side ) i s connecte d wit h th e specia l too l a s
shown , th e indicato r ligh t wil l blin k th e Diagnosti c Troubl e Cod e (DTC ) whe n th e ignitio n switc h i s turne d O N (II) .
Whe n th e indicato r ligh t ha s bee n reporte d on , connec t th e Servic e Chec k Connecto r wit h th e specia l tool .
Then tur n th e ignitio n switc h O N (II ) an d observ e th e indicato r light .
INDICATO RLIGHT
Code s 1 throug h 9 ar e indicate d b y individua l shor t blinks . Code s 1 0 an d abov e ar e indicate d b y a serie s o f lon g an d shor t
blinks . On e lon g blin k equal s 1 0 shor t blinks . Ad d th e lon g an d shor t blink s togethe r t o determin e th e code . Afte r deter -
minin g th e code , refe r t o th e electrica l syste m Symptom-to-Componen t Char t o n page s 14-5 6 an d 14-57 .
NOTE :
• Disconnectin g th e BAC K UP , RADI O fus e als o cancel s th e radi o anti-thef t code , prese t station s an d th e cloc k setting . Ge t
th e customer' s cod e number , an d mak e not e o f th e radi o preset s befor e removin g th e fus e s o yo u ca n rese t them .
• Th e PC M memor y mus t b e rese t afte r reconnectin g th e batter y o r th e BAC K UP , RADI O fus e (se e pag e 11-111 ).
SC S SERVIC E CONNECTO R07PAZ-001010 0
GAUGE ASSEMBL Y
SERVICE CHEC KCONNECTO R (2P )
ProCarManuals.com

Dashboard
Componen t Removal/Installatio n (cont'd )
Climate contro l unit , audi o uni t an d cente r ai r ven t ('9 9
- 0 1 models) :
SR S component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e Restraint s ( sectio n 24 ) befor e performin g repair s
o r service .
1 . Remove :
Consol e pane l (se e pag e 20-49 )
Consol e lowe r carpet , bot h side s (se e pag e 20-47 )
2.
3.
Mak e sur e yo u hav e th e anti-thef t cod e fo r th e
radio , the n writ e dow n th e frequencie s fo r th e
radio' s prese t buttons .
Remov e th e bolts . Pul l ou t th e botto m o f th e climat e
contro l unit , audi o unit , an d cente r ai r ven t a s a n
assembly , an d carefull y detac h th e cli p a t th e cente r
ai r vent . Disconnec t th e connector s an d antenn a
leads , the n remov e it .
Bol t locations , 4
6 x 1. 0 m m9.8 N- m(1.0 kgf-m ,
7. 2 Ibf-ft ) Cli
p locations , 4
CLI P
CENTE RAIR VEN T
CLIMAT ECONTRO LUNIT
HAZAR DWARNIN G CLIMAT ESWITCH CONTRO L UNI TCONNECTO R CONNECTOR S
CLOCKCONNECTO R
AUDIO UNI T
FRON T FO G
LIGH T SWITC H
CONNECTO R
REA R WINDO W
DEFOGGE R SWITC H
CONNECTO R
ANTENNALEADSAUDIO UNI TCONNECTO R
4. Installatio n is th e revers e o f th e remova l procedure .
NOTE:
Make sur e th e connector s an d antenn a lea d ar e
connecte d properly .
Ente r th e anti-thef t cod e fo r th e radio , the n ente r
th e customer' s radi o statio n presets .
AUDIO UNI T
CONNECTOR S
ProCarManuals.com

Front Sea t
Remova l
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e Restraint s ( sectio n 24 ) befor e performin g repair s
o r service .
CAUTION : Whe n pryin g wit h a flat-ti p screwdriver , wra p
i t wit h protectiv e tap e t o preven t damage .
NOTE : Tak e car e no t t o scratc h th e sea t cover s an d body .
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e
radio , the n writ e dow n th e frequencie s fo r th e pre -
set buttons .
2. Disconnec t th e negativ e batter y cable , an d wai t a t
leas t 3 minute s befor e beginnin g work .
3. Remov e th e sea t trac k en d covers , the n remov e th e
bolts .
Seat trac k en d cove r removal :
Bolt locations , 4
1 0 x 1.2 5 mm37 N- m (3. 8 kgf-m ,
2 7 Ibf-ft )
SEA T TRAC K
END COVE R
SEAT TRAC K
EN D COVE R
SEA T TRAC K
END COVER S FRON T SEA T
4. Lif t th e fron t seat , the n disconnec t th e connectors .
Driver' s seat :
SIDE AIRBA G
CONNECTO R
('9 9 - 0 1 models )
SEAT HEATE RCONNECTO R(for som e
models )
SEAT BEL TSWITC HCONNECTO R
Passenger's seat :
SIDE AIRBA GCONNECTO R('99 - 0 1 models ) Cli
p locatio n
POWERSEATCONNECTO R
SEA T BEL T
SWITC H
CONNECTO R
POWER SEA TCONNECTO R
5. Remov e th e headrest .
6 . Carefull y remov e th e fron t sea t throug h th e doo r
opening .
7. Installatio n i s th e revers e o f th e remova l procedure .
NOTE:
Make sur e th e connector s ar e connecte d properly .
Ente r th e anti-thef t cod e fo r th e radio , the n ente r
th e customer' s radi o statio n presets .
SEAT HEATE RCONNECTO R
(fo r som e
models )
OPD
S UNI T
CONNECTO R
('9 9 - 0 1 model s
ProCarManuals.com

5. Remov e th e dashboar d lowe r cove r (se e sectio n 20 ).
6 . Remov e th e mountin g nu t an d bolt , an d pul l th e
under-das h fuse/rela y bo x ou t fro m unde r th e dash .
BOLT
Under-das h Fuse/Rela y Bo x
Removal/Installatio 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 .
NOTE : Th e PC M memor y mus t b e rese t afte r reconnectin g
th e batter y (se e sectio n 11 ).
Removal :
1. Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radi o
an d th e navigatio n system , the n writ e dow n th e fre -
quencie s fo r th e radio' s prese t buttons .
2 . Disconnec t th e batter y negativ e cable , the n
disconnec t th e positiv e cable , an d wai t a t leas t
3 minutes .
3 . Disconnec t th e airba g connector s (se e sectio n 24 ).
4 . Disconnec t th e connector s fro m th e under-das h fuse /
relay box, including the SRS main harness (see
sectio n 24 ).
UNDER-DAS H FUSE/RELA Y BO X
SRS MAI N HARNES S
NUT
Installation :
1 . Connec t th e connector s t o th e under-das h fuse/rela y
box, the n instal l th e under-das h fuse/rela y bo x in th e
revers e orde r o f remova l (se e sectio n 24 ).
2 . Instal l th e dashboar d lowe r cove r (se e sectio n 20 ).
3 . Connec t th e airba g connector s (se e sectio n 24 ).
4 . Connec t th e batter y positiv e cable , the n connec t th e
negativ e cable .
5 . Confir m tha t al l system s wor k properly .
6 . Ente r th e anti-thef t cod e fo r th e radi o an d th e navi -
gatio n system , the n ente r th e customer' s radi o sta -
tio n presets .
ProCarManuals.com