1996 ACURA RL KA9 jump start

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0134: Right Primary Heated Oxygen Sensor

(Right Primary HO2S) (Bank 1, Sensor 1) heater system malfunction.

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0154: Left Primary Heated Oxygen Sensor

(Left Primary H02S) (Bank 2, Sensor 1) heater system malfunction.

The MIL has been reported on.

DTC P0134 and/or P0154 are

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.

Is DTC P0134 and/or P0154

indicated?

YES

Check for an open in the HO2S:

1. Turn the ignition switch OFF.

2.
Disconnect
the
right primary

H02S (Bank 1, Sensor 1) or left

primary HO2S* (Bank2, Sen-

sor 1) connector.

3. Install a jumper wire on the

harness side of the right prima-

ry H02S (Bank 1,Sensor 1) or

left primary H02S*connector

between terminals No. 1 and

No. 2.

4. Turn the ignition switch ON (II).

5. Check the right primary HO2S

(Bank 1, Sensor 1) or left pri-

mary HO2S*(Bank2, Sensorl)

output voltage with the HDS

or the scan tool.

Is there 1.5 V or more?

YES

Check for an open in the wires

(PHO2S line):

1. Turn the ignition switch OFF.

2. Install a jumper wire on the

PCM connector between D19,

orD18*andD22.

3. Turn the ignition switch ON (II).

4. Check the right primary H02S

(Bank 1, Sensor 1) or left pri-

mary H02S* (Bank 2, Sensor 1)

output voltage with the HDS

or the scan tool.

Is there 1.5 V or more?

YES
NO
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.

Replace the HO2S.

Repair open in the wire between

PCM (019 or D18*) and right pri-

mary HO2S (Bank 1, Sensor 1) or

left primary HO2S* (Bank 2,

Sensor 1).

Substitute a known-good PCM and

recheck. If symptom/indication

goes away, replace the original

PCM.ProCarManuals.com

Starter Tes t
NOTE : Th e ai r temperatur e mus t b e betwee n 5 9 an d
100° F (1 5 an d 38°C ) befor e testing .
Recommende d Procedure :
Use a starte r syste m tester .
Connec t an d operat e th e equipmen t i n accordanc e
wit h th e manufacturer' s instructions .
Tes t an d troubleshoo t a s described .
Alternat e Procedure :
Use followin g equipment :
— Ammeter , 0 - 40 0 A
— Voltmeter , 0 - 2 0 V (accurat e withi n 0. 1 volt )
— Tachometer , 0 - 1,20 0 rp m
Hoo k u p a voltmete r an d ammete r a s shown .
NEGATIV E
TERMINA L
NOTE: Afte r thi s test , o r an y subsequen t repair , rese t
th e PC M to clea r an y code s (se e sectio n 11 ).
Chec k th e Starte r Engagemen t
1 . Disconnec t th e 8 P an d 6 P connecto r fro m th e ICM .
6P CONNECTO R
ICM
8P CONNECTO R
2.
3.
Wit h th e shif t leve r i n o r , turn th e ignitio n
switc h to STAR T (III) .
Th e starte r shoul d cran k th e engine . I f th e starte r
doe s no t cran k th e engine , g o t o ste p 3 .
I f i t crank s th e engin e erraticall y o r to o slowly , g o
t o "Chec k fo r Wea r an d Damage " o n th e nex t
page .
Chec k th e battery , batter y positiv e cable , ground ,
starte r cu t relay , an d th e wir e connection s fo r loose -
nes s an d corrosion . Tes t again . I f th e starte r stil l doe s
no t cran k th e engine , g o to ste p 4 .
Unplu g th e connecto r (BLK/WH T wire ) fro m th e
starter . Mak e sur e th e shif t leve r i s i n o r , then
connec t a jumpe r wir e fro m th e batter y positiv e (+ )
termina l t o th e solenoi d terminal . Th e starte r shoul d
cran k th e engine .
S (SOLENOID )
TERMINA L
BLK/WH T
WIRE
If th e starte r stil l doe s no t cran k th e engine , remov e
it , an d diagnos e it s interna l problem .
I f th e starte r crank s th e engine , g o t o ste p 5 an d
continu e th e test .
5 . Chec k th e ignitio n switch .
6 . Chec k th e starte r cu t relay .
7. Chec k fo r a n ope n i n th e wir e betwee n th e ignitio n
switch an d starter .
8 . Chec k th e immobilize r syste m (se e sectio n 23 ).
4 .
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Engine Coolan t Temperatur e (ECT ) Gaug e
Gauge Testin g
1. Chec k th e No . 2 0 (2 0 A ) fus e in th e under-das h fuse /
rela y bo x befor e testing .
2 . Remov e th e engin e cove r (se e pag e 5-3 ).
3 . Mak e sur e th e ignitio n switc h i s OFF , the n discon -
nec t th e YEL/GR N wir e fro m th e EC T sendin g unit ,
and groun d it wit h a jumpe r wire .
ECT SENDIN GUNIT
YEL/GR NWIRE
4. Tur n th e ignitio n switc h O N (II) . Chec k tha t th e
pointe r o f th e EC T gaug e start s movin g towar d th e
"H " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "H " o n th e gaug e dial . Failur e to d o
s o ma y damag e th e gauge .
If th e pointe r o f th e gaug e doe s no t mov e a t all ,
chec k fo r a n ope n in th e YEL/GR N wire .
I f th e wire s ar e OK , replac e th e EC T gauge .
I f th e EC T gaug e works , tes t th e EC T sendin g
unit.
ECT Sendin g Uni t Testin g
1. Remov e th e engin e cove r (se e pag e 5-3 ).
2 . Disconnec t th e YEL/GR N wir e fro m th e EC T sendin g
unit.
YEL/GR N WIR E(Covere d wit hinsulation )POSITIVETERMINA L
ECT SENDIN GUNIT
3. Usin g a n ohmmeter , measur e th e chang e i n resis -
tanc e betwee n th e positiv e termina l an d th e engin e
(ground ) wit h th e engin e col d an d wit h th e engin e
a t operatin g temperature .
Temperature
Resistance ( )
122°F(50°C )
226
239°F(115°C )
26.4
4. I f th e obtaine d reading s ar e substantiall y differen t
fro m th e specification s above , inspec t th e coolan t
leve l an d th e coolin g system . I f th e coolin g syste m
i s OK , replac e th e sendin g unit .
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PGM-FI Syste m
Primar y Heate d Oxyge n Senso r (HO2S ) (Senso r 1 ) (cont'd )
The sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0132 : A hig h voltag e proble m in th e Righ t Primar y
Heated Oxyge n Senso r (Righ t Primar y HO2S ) (Ban k 1 , Senso r 1 ) circuit .
The sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0152 : A hig h voltag e proble m in th e Lef t Primar yHeated Oxyge n Senso r (Lef t Primar y HO2S ) (Ban k 2 , Senso r 1 ) circuit .
— Th e MI L ha s bee n reporte d on .
— DT C P013 2 and/o r P015 2 ar e
stored .
Proble m verification :
1 . D o th e PC M Rese t Procedure .
2 .
Start the engine. Hold the enginea t 3,00 0 rp m wit h n o loa d (i nPar k o r neutral ) unti l th e radia -
torfancomeson .
3. Test-driv e wit h th e transmis -sion in position .4. Chec k th e righ t primar y HO2 S
(Ban k 1 , Senso r 1 ) o r lef t primar y
HO2S * (Ban k 2 , Senso r 1 ) out -
pu t voltag e wit h th e sca n too l
durin g deceleratio n usin g com -
pletel y close d throttle .
Doe s th e voltag e sta y a t 0. 9 V
o r more ?
YES
Chec k fo r a n ope n in th e HO2S :1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e righ t primar yHO2S (Ban k 1 , Senso r 1 ) o r lef t
primar y HO2S * (Ban k 2 , Sen -
so r 1 (connector .
3. Instal l a jumpe r wir e o n th eharnes s sid e o f th e righ t primar y
HO2 S (Ban k 1 , Senso r 1 ) o r lef t
primar y HO2S * connecto r
betwee n terminal s No . 1 an d
No. 2 .4. Tur n th e ignitio n switc h O N (II) .
5 . Chec k th e righ t primar y HO2 S
(Ban k 1 , Senso r 1 ) o r lef t pri -
mar y HO2S *
(Bank 2, Sensor 1)outpu t voltag e wit h th e sca n tool .
I s ther e 0. 9 V or more ?
YES
Chec k fo r a n ope n i n th e wire s
(PO2 S line) :
1. Tur n th e ignitio n switc h OFF .2. Instal l a jumpe r wir e o n th ePC M connecto r betwee n D19 ,or D18 * and D22 .3. Tur n th e ignitio n switc h O N (II) .4. Chec k th e righ t primar y HO2 S
(Ban k 1 , Senso r 1 ) o r lef t pri -
mar y HO2S * (Ban k 2 , Senso r 1 )
outpu t voltag e wit h th e sca n tool .
I s ther e 0. 9 V or more ?
YES
Substitut e a known-goo d PC M an d
rechec k (se e pag e 11-42 fo r immo -
bilize r information) . I f symp -
tom/indicatio n goe s away , replac e
th e origina l PCM .
NO
Intermitten t failure , syste m is O K
a t thi s time . Chec k fo r poo r con -
nection s o r loos e wire s a t C251 ,
C25 4 (locate d a t lef t shoc k tower) ,
C11 9 (righ t primar y HO2 S (Ban k 1 ,
Senso r 1) ) o r C12 6 (lef t primar y
HO2 S (Ban k 2 , Senso r 1)) *
RIGH T PRIMAR Y HO2 S (Ban k 1 , Senso r 1 ) CONNECTO R (C119 )
o r LEF T PRIMAR Y HO2 S (Ban k 2 , Senso r 1 ) CONNECTO R (C126 )
JUMPE R WIR E
Replac e th e HO2S . Wir
e sid e o f femal e terminal s
PC M CONNECTO R D (22P )
Repai r ope n i n th e wir e betwee n
PCM (D1 9 o r D18* ) an d righ t pri -mar y HO2 S (Ban k 1 , Senso r 1 ) o r
lef t primar y HO2S * (Ban k 2 ,
Senso r 1) . Wir
e sid e o f femal e terminal s
* : P015 2NO
N
O
JUMPE RWIRE
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Fuel Pum p Resisto r
Troubleshootin g Flowchar t
Is ther e batter y voltag e fo r
2 seconds ?
Doe s th e engin e start ?
NO
Chec k fo r a n ope n in th e wire :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e fue l uni t sub -
harnes s connector .3. Measur e voltag e betwee n th e
fue l uni t sub-harnes s connec -
to r termina l No . 7 an d bod y
groun d whe n th e ignitio nswitch i s firs t turne d O N (II) .
I s ther e batter y voltag e fo r
2 seconds ? FUE
L PUM P RESISTO R 2P CONNECTO R
(C704 )
Wir e sid e o f femal e terminal s
Inspec t th e PGM-F I mai n rela y
(se e pag e 11-146 ).
Replac e th e fue l pum p resistor .
FUEL UNI T SUB-HARNES S
CONNECTO R (C669 )
(BLK/YEL )
Inspect th e fue l pum p (se e pag e11-142 ).
Termina l sid e o f mal e terminal s
Repai
r ope n i n wir e betwee n th e
fue l pum p resisto r an d th e fue l
pump .
YES
NO
YE S
JUMPE R WIR E
NO
YE S
Chec k th e operatio n o f th e PGM -
F I mai n relay :
1 . Disconnec t th e fue l pum p
resisto r 2 P connector .
2 . Measur e voltag e betwee n fue l
pum p resisto r 2 P connecto r
termina l No . 2 an d bod y
groun d whe n th e ignitio nswitch i s firs t turne d O N (II) .
—
Engin e wil l no t start .
— Inspectio n o f fue l pum p resis -
tor.
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Fuel Suppl y Syste m
Fuel Gaug e (cont'd )
6. Tur n th e ignitio n switc h OFF .
7 . Attac h a jumpe r wir e betwee n th e No . 1 an d No . 2
terminals , the n tur n th e ignitio n switc h O N (II) .
8 . Chec k tha t th e pointe r o f th e fue l gaug e start s mov -
ing towar d th e "F " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "F " o n th e gaug e dial . Failur e to d o
s o ma y damag e th e fue l gauge .
NOTE : Th e fue l gaug e is a bobbi n (cross-coil )
type,
henc e th e fue l leve l i s continuousl y indicate d eve n
whe n th e ignitio n switc h i s OFF , an d th e pointe r
moves mor e slowl y tha n tha t o f a bimeta l type .
• I f th e pointe r o f th e fue l gaug e doe s no t mov e a t
all , replac e th e gauge .
• I f th e gaug e i s OK , inspec t th e fue l gaug e send -
ing unit .
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Troubleshooting
DTC 52 : Moto r Stuc k OF F
Whe n th e vehicl e starts , th eAB S indicato r conie s on .Wit h th e SC S servic e connec -
to r connecte d (se e pag e
19-119 ), DT C 52 is indicated .
Check th e AB S MOTO R (4 0 A ) fus ein th e under-hoo d fuse/rela y box ,and reinstal l th e fus e if i t i s OK .
Is th e fus e OK ?
Chec k th e AB S UNI T (7. 5 A ) fus e
in th e under-hoo d fuse/rela y box ,and reinstal l th e fus e if i t i s OK .
I s th e fus e OK ?
Chec k th e pum p moto r rela y (se e
sectio n 23 ).
I s th e rela y OK ?
Chec k th e moto r circuit :
Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4
wit h a jumpe r wir e fo r a moment .
Does th e pum p moto r operate ?
Chec k fo r a n ope n in th e MOTO R
circuit :
1 . Disconnec t th e pum p moto r
connector .2. Connec t th e pum p moto rrelay connecto r termina l No .3 to No . 4 wit h a jumpe r wire .3. Measur e th e voltag e betwee n
th e pum p moto r connecto r
terminal No . 1 an d bod yground .
Is ther e batter y voltage ?
(T o pag e 19-135 ) Replac
e th e fus e an d recheck .
NOTE : Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4 fo r a
moment , an d rechec k th e fuse . I f th e fus e
i s blown , chec k fo r a shor t t o bod y
groun d i n th e moto r powe r sourc e circuit .
Replac e th e fus e an d recheck .
NOTE: Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4 fo r a
moment , an d rechec k th e fuse . I f th efus e i s blown , chec k fo r a shor t t o bod y
groun d i n th e MC K circuit .
Replac e th e pum p moto r relay .
PUMP MOTO R RELA Y CONNECTO R
Chec k th e PM R circuit .
(T o pag e 19-136 )
Repai r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
an d th e pum p motor .
Terminal sid e o f femal e terminal s
PUM
P MOTO R CONNECTO R
JUMPE
R WIR E
Termina l sid e o f femal e terminal s
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