1996 ACURA RL KA9 Service Repair Manual

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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The sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0133 : A slo w respons e proble m in th e Righ t Primar y
Heate d Oxyge n Senso r (Righ t Primar y HO2S ) (Ban k 1 , Senso r 1 ) circuit .
Th e sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0153 : A slo w respons e proble m in th e Lef t Primar y
Heate d Oxyge n Senso r (Lef t Primar y HO2S ) (Ban k 2 , Senso r 1 ) circuit .
Descriptio n
B y controllin g th e air/fue l rati o wit h a Primar y HO2 S (Senso r 1 ) an d a Secondar y HO2 S (Senso r 2) , th e deterioratio n o f th e
Primar y HO2 S (Senso r 1 ) ca n b e evaluate d b y it s feedbac k period . Whe n th e feedbac k perio d o f th e HO2 S exceed s a certai n
valu e durin g stabl e drivin g conditions , th e senso r wil l b e judge d a s deteriorated . Whe n deterioratio n ha s bee n detecte d dur -
in g tw o consecutiv e trips , th e MI L come s o n an d DT C P013 3 o r P015 3 wil l b e stored .
NOTE : I f DT C P0131 , P013 2 and/o r P013 5 ar e store d a t th e sam e tim e a s DT C P0133 , troubleshoo t thos e DTC s first , the n
troubleshoo t DT C P0133 . I f DT C P0151 , P015 2 and/o r P015 5 ar e store d a t th e sam e tim e a s DT C P0153 , troubleshoo t thos e
DTC s first , the n troubleshoo t DT C P0153 .
Is DT C P013 3 and/o r P015 3
indicated ?
YES
Replace the primary HO2S (Sen-
sor 1).
NO
Intermitten t failure , syste m is O Kat 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)) * an d
PCM .
*: P015 3
Proble m verification :
1 . D o th e PC M Rese t Procedure .
2 . Star t th e engine . Hol d th e
engin e a t 3,00 0 rp m wit h n oloa d (i n Par k o r neutral ) unti l
th e radiato r fa n come s on .
3 . Connec t th e SC S servic e con -
nector .
4 . Test-driv e unde r followin g
conditions .— 5 5 mp h (8 8 km/h ) stead y
spee d
— Transmissio n i n posi -tion— Unti l readines s cod e come son
Possibl e Caus e
• Primar y HO2 S (Senso r 1 ) Deterioratio n
• Primar y HO2 S Heate r (Senso r 1 ) Deterioratio n
• Exhaus t syste m leakag e
Troubleshootin g Flowchar t
— Th e MI L ha s bee n reporte d on .
— DT C P013 3 and/o r P015 3
stored.
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