ABS ACURA TL 1995 Service Repair Manual

Control Box :
EXHAUS T GA S RECIRCULATIO N
(EGR ) CONTRO L SOLENOI D VALVE
MANIFOL D ABSOLUT E
PRESSUR E (MAP )
SENSO R EXHAUS
T GA S RECIRCULATIO N (EGR )
VACUU M CONTRO L VALV E
FUELPRESSUR E REGULATO R CONTRO LSOLENOID VALV E
Troubleshooting , pag e 11-12 5
For Troubleshooting of DTC related components, see chart on page 11-45.
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System Description

Vacuum Connections (cont'd)

'96 model:

LEFT PRIMARY HEATED OXYGEN SENSOR (LEFT PRIMARY

HO2S) (BANK 2 SENSOR 1)

RIGHT PRIMARY HEATED OXYGEN SENSOR (RIGHT

PRIMARY HO2S) (BANK 1 SENSOR 1)

SECONDARY HEATED OXYGEN SENSOR (SECONDARY

HO2S) (SENSOR 2)

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

INTAKE AIR TEMPERATURE (IAT) SENSOR

LEFT KNOCK SENSOR (LEFT KS) (BANK 2)

RIGHT KNOCK SENSOR (RIGHT KS) (BANK 1)

IDLE AIR CONTROL (IAC) VALVE

FAST IDLE THERMO VALVE

IDLE ADJUSTING SCREW

FUEL INJECTOR

FUEL PRESSURE REGULATOR

FUEL PRESSURE REGULATOR CONTROL SOLENOID VALVE

FUEL FILTER

FUEL PUMP (FP)

FUEL TANK

AIR CLEANER (ACL)

INTAKE AIR BYPASS (IAB) LOW CONTROL DIAPHRAGM

VALVE

INTAKE AIR BYPASS (IAB) LOW CONTROL SOLENOID

VALVE

INTAKE AIR BYPASS (IAB) HIGH CONTROL DIAPHRAGM

VALVE

INTAKE AIR BYPASS (IAB) HIGH CONTROL SOLENOID

VALVE
INTAKE AIR BYPASS (IAB) VACUUM TANK

INTAKE AIR BYPASS (IAB) CHECK VALVE

THREE WAY CATALYTIC CONVERTER (TWC)

EXHAUST GAS RECIRCULATION (EGR) VALVE AND LIFT

SENSOR

EXHAUST GAS RECIRCULATION (EGR) CONTROL

SOLENOID VALVE

EXHAUST GAS RECIRCULATION (EGR) VACUUM CONTROL

VALVE

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER

EVAPORATIVE EMISSION (EVAP) PURGE CONTROL

DIAPHRAGM VALVE

EVAPORATIVE EMISSION (EVAP) PURGE CONTROL

SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE

EVAPORATIVE EMISSION (EVAP) PURGE FLOW SWITCH

WATER VALVE CONTROL SOLENOID VALVE

WATER VALVE CONTROL DIAPHRAGM

WATER VALVE CHECK VALVEProCarManuals.com

'97 - 98 models:

LEFT PRIMARY HEATED OXYGEN SENSOR (LEFT PRIMARY

HO2S) (BANK 2 SENSOR 1)

RIGHT PRIMARY HEATED OXYGEN SENSOR (RIGHT

PRIMARY HO2S) (BANK 1 SENSOR 1)

SECONDARY HEATED OXYGEN SENSOR (SECONDARY

HO2S) (SENSOR 2)

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

INTAKE AIR TEMPERATURE (IAT) SENSOR

LEFT KNOCK SENSOR (LEFT KS) (BANK 2)

RIGHT KNOCK SENSOR (RIGHT KS) (BANK 1)

IDLE AIR CONTROL (IAC) VALVE

FAST IDLE THERMO VALVE

IDLE ADJUSTING SCREW

FUEL INJECTOR

FUEL PRESSURE REGULATOR

FUEL PRESSURE REGULATOR CONTROL SOLENOID VALVE

FUEL FILTER

FUEL PUMP (FP)

FUEL TANK

AIR CLEANER (ACL)

INTAKE AIR BYPASS (IAB) LOW CONTROL DIAPHRAGM

VALVE

INTAKE AIR BYPASS (IAB) LOW CONTROL SOLENOID

VALVE

INTAKE AIR BYPASS (IAB) HIGH CONTROL DIAPHRAGM

VALVE

INTAKE AIR BYPASS (IAB) HIGH CONTROL SOLENOID

VALVE
INTAKE AIR BYPASS (IAB) VACUUM TANK

INTAKE AIR BYPASS (IAB) CHECK VALVE

THREE WAY CATALYTIC CONVERTER (TWC)

EXHAUST GAS RECIRCULATION (EGR) VALVE AND LIFT

SENSOR

EXHAUST GAS RECIRCULATION (EGR) CONTROL

SOLENOID VALVE

EXHAUST GAS RECIRCULATION (EGR) VACUUM CONTROL

VALVE

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

EVAPORATIVE EMISSION (EVAP) PURGE CONTROL

SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER

EVAPORATIVE EMISSION (EVAP) THREE WAY VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER

VENT SHUT VALVE

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

EVAPORATIVE EMISSION (EVAP) BYPASS SOLENOID

VALVE

FUEL TANK PRESSURE SENSOR

FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE

WATER VALVE CONTROL SOLENOID VALVE

WATER VALVE CONTROL DIAPHRAGM

WATER VALVE CHECK VALVE

FUEL PULSATION DAMPERProCarManuals.com

Troubleshooting
Troubleshootin g Procedure s (cont'd )
Sympto m Char t
Liste d belo w ar e symptom s an d probabl e cause s fo r problem s tha t D O NO T caus e th e Malfunctio n Indicato r Lam p (MIL ) t o
com e on . I f th e MI L wa s reporte d on , g o to pag e 11-32 .
Troubleshoo t eac h probabl e caus e in th e orde r liste d (fro m lef t t o right ) unti l th e sympto m is eliminated .
Th e probabl e caus e an d troubleshootin g pag e referenc e ca n b e foun d below .
SYMPTO M
Engin e wil l no t star t
Har d startin g
Col d fas t idl e to o lo w
Col d fas t idl e to o hig h
Idl e spee d fluctuate s
Misfir e o r roug h runnin g
Lo w powe r
Engin e stall s
PROBABL E CAUS E
2, 3 , 21 , 13 , 1
2 , 10 , 12 , 20 , 2 1
5, 6 , 7 , 4
5 , 6 , 7 , 9 , 8
5 , 14 , 15 , 6 , 7 , 9 , 8
Troubleshoo t fo r misfir e o n page s 11-85 , 11-8 9
2, 8 , 9 , 11 , 18 , 17 , 19 , 1 0
2, 5 , 10 , 21 , 7 , 3 , 1 6
Othe r Probabl e Cause s fo r a n engin e tha t wil l no t start :
— Compressio n
— PGM-F I mai n rela y
— Engin e locke d u p
— Timin g bel t
Probabl e Caus e Lis t (for DTC chart see page 11-45).
—
Startin g syste m
— Ignitio n syste m
— Overheatin g
— Batter y
Probabl e Caus e
1
2
3
4
5
6
7
8
9
10
1 1
1 2
13
1 4
15
1 6
17
18
19
2 0
2 1
Pag e
11-5 3, 11-54
11-11 9
(See DTC chart)
(See DTC chart)
(See DTC chart)
11-113
11-11 4
11-136
11-13 5
(See DTC chart)
(See DTC chart)
(See DTC chart)
Sectio n 1 4
11-10 4
11-106
11-112
11-13 4
11-138
11-14 4
11-153
System
Powertrai n Contro l Modul e (PCM )
Fuel pressur e
Crankshaf t Position/Cylinde r Positio n senso r circui t
Intak e Ai r Temperatur e (IAT ) senso r circui t
Idl e Ai r Contro l (IAC ) Valv e
Fas t idl e therm o valv e
Idl e spee d adjustmen t
Throttl e bod y
Throttl e cabl e
Manifol d Absolut e Pressur e (MAP ) senso r
Throttl e Positio n (TP ) senso r
Barometri c pressur e (BARO ) senso r
A/ T gea r positio n signa l
Ai r Conditionin g Signa l
Alternato r F R Signa l
Brak e switc h signa l
Air Cleane r
Intake Ai r Bypas s (IAB ) contro l syste m an d intak e ai r duc t
Thre e Wa y Catalyti c Converte r (TWC )
Evaporativ e emissio n (EVAP ) contro l
Contaminate d fue l
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Powertrain Contro l Modul e Dat a
B y connectin g th e OB D II sca n too l o r th e Hond a PG M Teste r t o th e 16 P dat a lin k connecto r (DLC) , variou s dat a ca n b e
retrieve d fro m th e PCM . Th e item s liste d in th e tabl e belo w confor m to th e SA E recommende d practice .
Th e Hond a PG M Teste r als o read s dat a beyon d tha t recommende d b y SAE .
Understandin g thi s dat a wil l hel p t o fin d th e cause s o f intermitten t failure s o r engin e problems .
NOTE:
The "operatin g values " give n belo w ar e approximat e value s an d ma y b e differen t dependin g o n th e environmen t an d
the individua l car .
Unles s note d otherwise , "a t idl e speed " mean s idlin g wit h th e engine completel y warme d up , transmissio n i n o r
position , an d th e A/ C an d al l accessorie s turne d off .
Dat aDescriptio nOperating Valu e
Freeze Dat a
Diagnosti c
Troubl e Cod e
(DTC )
If th e PC M detect s a problem , i t wil l stor e it a s a cod e
consistin g o f on e lette r an d fou r numbers .
Dependin g o n th e problem , a n SAE-define d cod e
(P0xxx ) o r a Honda-define d cod e (P1xxx ) wil l b e outpu t
t o th e tester . I
f n o proble m is detected ,
ther e i s n o output .
Engin e Spee d Th
e PC M compute s engin e spee d fro m th e signal s sen t
fro m th e Crankshaf t Positio n sensor .
Thi s dat a is use d fo r determinin g th e tim e an d amoun t
o f fue l injection . Nearl
y th e sam e a s
tachomete r indicatio n a t
idl e speed :
640 5 0 rp m
Vehicl e Spee d Th
e PC M convert s puls e signal s fro m th e Vehicl e
Spee d Senso r (VSS ) int o spee d data . Nearl
y th e sam e a s
speedomete r indicatio n
Manifol d
Absolut e
Pressur e (MAP )
The absolut e pressur e create d in th e intak e manifol d b y
engin e loa d an d speed . Wit
h engin e stopped :
Nearl y th e sam e a s atmo -
spheri c pressur e a t idl e
speed :
24-37 kP a (180-28 0
mmHg, 7.1-11. 0 inHg )
Engin e Coolan t
Temperatur e
(ECT)
The EC T senso r convert s coolan t temperatur e int o
voltag e an d signal s th e PCM . Th e senso r i s a thermisto r
whos e interna l resistanc e change s wit h coolan t
temperature . Th e PC M use s th e voltag e signal s fro m
th e EC T senso r t o determin e th e amoun t o f injecte d
fuel . Wit
h col d engine :
Sam e a s ambien t temper -
atur e an d IA T
Wit h engin e warme d up :
approx . 158-212° F
(70-100°C )
Heate d Oxyge n
Senso r (H02S )
(Bank 1, Sensor 1)
(Ban k 2 , Senso r 1 )
(Senso r 2 )
Th e Heate d Oxyge n Senso r detect s th e oxyge n conten t
i n th e exhaus t ga s an d send s voltag e signal s to th e
PCM . Base d o n thes e signals , th e PC M control s th e
air/fue l ratio . Whe n th e oxyge n conten t i s hig h (tha t is ,
whe n th e rati o is leane r tha n th e stoichiometri c ratio) ,
th e voltag e signa l i s lower . Whe n th e oxyge n conten t i s
lo w (tha t is , whe n th e rati o is riche r tha n th e stoichio -
metric ratio) , th e voltag e signa l i s higher .
0.0-1.2 5 V
A t idl e speed :
about 0.1-0. 9 V
O
(Senso r 1 )
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Diagnostic Troubl e Cod e (DTC ) Char t
DTC(MIL indication*1)
P010 6 (5)*2
P010 7 (3 )
P010 8 (3 )
P0111 (10)*4
P011 2 (10 )
P011 3 (10 )
P011 6 (86 )
P011 7
(6 )
P0118 (6 )
P0122 (7 )
P012 3 (7 )
P0131 (2 )
P0132 (2 )
P013 3 (62 )
P013 5 (42 )
Detection Ite m
Manifol d Absolut ePressure Circui t
Range/Performanc e Proble m
Manifol d Absolut e
Pressur e Circui t
Low Inpu t
Manifol d Absolut ePressure Circui tHigh Inpu t
Intake Ai r
Temperatur e Circui t
Range/Performanc e Proble m
Intak e Ai r
Temperatur e Circui t
Low Inpu t
Intak e Ai r
Temperatur e Circui t
High Inpu t
Engin e Coolan t
Temperatur e Circui t
Range/Performanc e Proble m
Engin e Coolan t
Temperatur e Circui t
Low Inpu t
Engin e Coolan t
Temperatur e Circui t
High Inpu t
Throttl e Positio nCircuitLow Inpu t
Throttl e Positio n
Circui t
Hig h Inpu t
Righ t Primar y Heate d Oxyge n
Senso r Circui t
Lo w Voltag e
(Ban k 1 , Senso r 1 )
Righ t Primar y Heate d Oxyge n
Senso r Circui t
Hig h Voltag e
(Ban k 1 , Senso r 1 )
Righ t Primar y Heate d Oxyge n
SensorSlow Respons e
(Ban k 1 , Senso r 1 )
Righ t Primar y Heate d Oxyge n
Senso r Heate r Circui t
Malfunctio n(Bank 1 , Senso r 1 ) Probabl
e Caus e
• Vacuu m connectio n
• MA P senso r
• Ope n o r shor t i n MA P senso r circui t
• MA P senso r
• PC M
• Ope n i n MA P senso r circui t
• MA P senso r
• PC M
• IA T senso r
• Shor t i n IA T senso r circui t• IA T senso r
• PC M
• Ope n i n IA T senso r circui t
• IA T senso r
• PC M
• EC T senso r
• Coolin g syste m
• Shor t i n EC T senso r circui t
• EC T senso r
• PC M
• Ope n in EC T senso r circui t
• EC T senso r
• PC M
• Ope n o r shor t i n T P senso r circui t
• T P senso r
• PC M
• Ope n i n T P senso r circui t
• T P senso r
• PC M
• Shor t i n Righ t Primar y H02 S (Ban k 1 ,
Senso r 1 ) circui t
• Righ t Primar y H02 S (Ban k 1 , Senso r 1 )
• Fue l suppl y syste m
• PC M
• Ope n i n Righ t Primar y HO2 S (Ban k 1 ,
Senso r 1 ) circui t
• Righ t Primar y HO2 S (Ban k 1 , Senso r 1 )
• PC M
• Righ t Primar y H02 S (Ban k 1 , Senso r 1 )
• Exhaus t syste m
• Ope n o r shor t i n Righ t Primar y HO2 S
(Ban k 1 , Senso r 1 ) heate r circui t
• PC M
Page
11-5 7
11-5 9
11-6 1
11-6 3
11-6 4
11-6 5
11-6 6
11-6 7
11-6 8
11-6 9
11-7 1
11-7 3
11-7 5
11-7 6
11-8 0
*1: Thes e DTC s wil l b e indicate d b y th e blinkin g o f th e Malfunctio n Indicato r Lam p (MIL ) wit h th e SC S servic e connecto r
connected
*2: '9 6 mode l
*4: '9 7 mode l
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Troubleshooting
Diagnostic Troubl e Cod e (DTC ) Char t (cont'd )
DTC(MIL indication )
P1121 (7)*3
P112 2 (7)*3
P112 8 (5)*3
P112 9 (5)*3
P120 1 7 1P1202 7 2P1203 7 3P1204 7 4
P120 5 7 5
P1206 7 6
717 2P130 0 7 374757 6
P130 1 7 1P1302 7 2P1303 7 3
P130 4 7 4
P130 5 7 5
P1306 7 6
P1316 (79 )
P131 7 (79 )
P131 8 (79 )
P131 9 (79 )
P1336 (54 )
P1337 (54 )
P1381 (9 )
P1382 (9 )
P138 6 (59 )
Detection Ite m
Throttl e Positio n
Lowe r Tha n Expecte d
Throttl e Positio n
Highe r Tha n Expecte d
Manifol d Absolut e Pressur e
Lowe r Tha n Expecte d
Manifol d Absolut e Pressur e
Highe r Tha n Expecte d
— Cylinde r 1
— Cylinde r 2
— Cylinde r 3— Cylinde r 4
— Cylinde r 5
— Cylinde r 6
Misfir e
Detecte d
Random Misfir e
— Cylinde r 1
— Cylinde r 2
— Cylinde r 3
— Cylinde r 4
— Cylinde r 5
— Cylinde r 6
Misfir e
Detecte d
Spark Plu g Voltag e
Detectio n Circui t
Malfunctio n
[Left Ban k (Ban k 2) ]
Spar k Plu g Voltag e
Detectio n Circui t
Malfunctio n
[Righ t Ban k (Ban k 1) ]
Spar k Plu g Voltag e
Detectio n Modul e Rese t
Circui t Malfunctio n
[Lef t Ban k (Ban k 2) ]
Spar k Plu g Voltag e
Detectio n Modul e Rese t
Circui t Malfunctio n
[Right Ban k (Ban k 1) ]
Crankshaf t Positio n
Senso r 2 Circui t
Range/Performanc e Proble m
Crankshaf t Positio n
Senso r 2 Circui t
Malfunctio n
Cylinde r Positio n
Senso r 1
Range/Performanc e Proble m
Cylinde r Positio n
Senso r 1 Circui t
Malfunctio n
Cylinde r Positio n
Senso r 2.
Range/Performanc e Proble m
Probabl e Caus e
• T P senso r
• T P senso r
• MA P senso r
• MA P senso r
• Fue l injecto r
• Fue l injecto r circui t
• Ignitio n syste m
• Lo w compressio n
• Ignitio n syste m
• Fue l suppl y syste m
• MA P senso r
• EG R syste m
• Contaminate d fue l
• Lac k o f fue l
• Ignitio n syste m
• Ope n o r shor t i n Spar k Plu g Voltag e
Detectio n Modul e circui t
• Spar k Plu g Voltag e Detectio n Modul e
• PC M
• Ope n o r shor t i n Spar k Plu g Voltag e
Detectio n Modul e circui t
• Spar k Plu g Voltag e Detectio n Modul e
• PC M
• Ope n o r shor t i n Spar k Plu g Voltag e
Detectio n Modul e Rese t circui t
• Spar k Plu g Voltag e Detectio n Modul e
• PC M
• Ope n o r shor t i n Spar k Plu g Voltag e
Detectio n Modul e Rese t circui t
• Spar k Plu g Voltag e Detectio n Modul e
• PC M
• Crankshaf t Positio n Senso r 2
• Timin g bel t skippe d teet h
• Crankshaf t Positio n Senso r 2
• Crankshaf t positio n Senso r 2 circui t
• PC M
• Cylinde r Positio n Senso r 1
• Cylinde r Positio n Senso r 1
• Cylinde r Positio n Senso r 1 circui t
• PC M
• Cylinde r Positio n Senso r 2
Pag e
11-7 2
11-7 2
11-6 2
11-6 2
11-8 5
11-8 9
11-8 5
11-9 0
11-9 0
11-9 2
11-9 2
11-9 4
11-9 4
11-9 4
11-9 4
11-9 4
*3: '9 7 - 9 8 model s
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39. Appl y steerin g greas e t o th e circumferenc e o f th e
rac k en d housing .
STEERIN G GREAS E
RAC K EN D HOUSIN G
RAC K EN D GROOV E
40. Appl y a ligh t coa t o f silicon e greas e t o th e boo t
groove s o n th e rac k ends .
41. Instal l th e boot s i n th e rac k en d wit h th e tub e
clamps .
NOTE : Instal l th e boot s wit h th e rac k i n th e straigh t
ahea d positio n (righ t an d lef t tie-rod s ar e equa l i n
length) .
NOTE: Wip e greas e of fthe threa d section .
SILICON E GREAS E
BOO T
TUBE CLAM P
42. Instal l th e ne w boo t band s o n th e boot s a s shown .
NOTE: Th e Lockin g tab s
(stak e points ) shoul d
b e i n thi s range .
LOCKIN G TAB S
43. Ben d bot h set s o f lockin g tabs .
44 . Lightl y ta p o n th e doubled-ove r portion s t o reduc e
their height .
CAUTION : Stak e th e ban d lockin g tab s firmly .
LOCKIN G TAB S
BOO T BAN D
Replace .
45. Slid e th e rac k righ t an d lef t t o b e certai n tha t th e
boot s ar e no t deforme d o r twisted .
46 . Loosel y instal l th e tie-ro d locknut s an d tie-ro d end s
o n th e rac k ends .
SILICON E GREAS E
Band windin g direction .
Front.
RACK EN D
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Component Location s
SERVICE CHEC K CONNECTO R (2P )
ABS INSPECTIO N CONNECTO R (6P )
UNDER-DAS H RELA Y BO X
MODULATO R UNI T
RIGHT-REA R WHEE L SENSO R
RIGHT-REA R WHEE L
SENSO R CONNECTO R
RIGHT-FRON T WHEE L
SENSO R CONNECTO R
LEFT-REARWHEEL SENSO R
RIGHT-FRON T
WHEE L SENSO R
LEFT-REA R WHEE LSENSO R CONNECTO R
UNDER-HOODFUSE/RELAY BO X
PARKING BRAK E SWITC H
UNDER-DAS H FUSE/RELA Y BO X
LEFT-FRON T WHEE L
SENSO R CONNECTO RLEFT-FRON
T WHEE L SENSO R
ABS CONTRO L UNI T
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GAUGE ASSEMBL Y UNDER-HOO
D FUSE/RELA Y BO X
AB S INDICATO R LIGH T
ABS UNI T(7.5 A ) FUS ESTOP/HOR
N
(2 0 A ) FUS E
UNDER-DAS H FUSE/RELA Y BO X
BATTER Y(120 A ) FUS E
R/ C MIRROR /
REAR DEFROSTE RRELAY (7. 5 A ) FUS E
BACK-U P LIGHTS /
METE R LIGHT S
(1 0 A ) FUS E ECU/CRUIS
E CONTRO L
(1 5 A ) FUS E
UNDER-DAS H RELA Y BO X
REA R FAIL-SAF E RELA Y
FRONT FAIL-SAF E RELA Y
ABS PUM PMOTO R RELA Y
AB S B 1 (2 0 A ) FUS E
IG S W (5 0 A ) FUS E
AB
S B 2 (1 5 A ) FUS E AB
S MOTO R (4 0 A ) FUS E
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