1996 ACURA RL KA9 sensor

Automatic Insid e Dimmin g Mirro r
Descriptio n ('0 2-04 Mode l USA )
The automati c dimmin g ha s a front-facin g lu x leve l sensor , a rear-facin g lu x leve l sensor , an d a contro l unit . Th e contro l
uni t receive s signal s fro m eac h sensor . Base d o n th e differenc e betwee n th e tw o lu x level s (th e ligh t outsid e th e vehicl e
an d th e ligh t fro m th e headlight s o f th e othe r vehicle , etc.) , th e contro l uni t control s th e electro-chromi c ge l t o reduc e th e
glare . Thi s dimmin g functio n is cancele d whe n th e transmissio n i s i n reverse , o r whe n th e automati c insid e dimmin g mir -
ro r switc h is turne d OFF .
BACKWAR D LU XLEVE L SENSO R
SWITCHFORWAR D LU XLEVE L SENSO R
ProCarManuals.com

Troubleshooting
Diagnostic Troubl e Cod e (DTC ) Char t (cont'd )
DTC(MI L indication )
P0139 (63)*2
P014 1 (65 )
P0153 (61)*2
P015 4 (1 )
P015 5 (41 )
P017 1 (46)*
2
P017 2 (46)*2
P017 4 (45)*2
P017 5 (45)*2
P030 0
P0325 (53 )
P033 0 (23 )
Detection Ite m
Secondar y Heate d Oxyge n Senso r(Secondar y H02S ) Slo w Respons e
(Sensor 2 )
Secondar y Heate d Oxyge n
Senso r (Secondar y HO2S ) Heate r
Circui t Malfunctio n (Senso r 2 )
Lef t Primar y Heate d Oxyge n
Senso r (Lef t Primar y HO2S ) Slo w
Respons e (Ban k 2 , Senso r 1 )
Lef t Primar y Heate d Oxyge n
Senso r (Lef t Primar y HO2S )
Heater Syste m Malfunctio n
Left Primar y Heate d Oxyge n
Sensor (Lef t Primar y H02S )
Heate r Circui t Malfunctio n (Ban k
2 , Senso r 1 )
Fue l Syste m To o Lea n [Righ t
Ban k (Ban k 1) ]
Fue l Syste m To o Ric h [Righ t Ban k
(Ban k 1) ]
Fue l Syste m To o Lea n [Lef t Ban k
(Ban k 2) ]
Fue l Syste m To o Ric h [Lef t Ban k
(Ban k 2) ]
Rando m Misfir e
Right Knoc k Senso r (Ban k 1 )Circui t Malfunctio n
Left Knoc k Senso r (Ban k 2 )Circui t Malfunctio n
Probable Caus e
• Secondar y H02 S (Senso r 2 )
• Ope n o r shor t i n Secondar y H02 S
(Senso r 2 ) heate r circui t
• PC M
• Lef t Primar y H02 S (Ban k 2 , Senso r 1 )
• Exhaus t syste m
• Ope n i n Lef t Primar y H02 S (Ban k 2 ,
Senso r 1 ) circui t
• Lef t Primar y H02 S (Ban k 2 , Senso r 1 )
• PC M
• Ope n o r shor t i n Lef t Primar y HO2 S
(Ban k 2 , Senso r 1 ) heate r circui t
• PC M
• Fue l suppl y syste m
• Righ t Primar y H02 S (Ban k 1 , Senso r 1 )
• MA P senso r
• Contaminate d fue l
• Valv e clearanc e
• Exhaus t leakag e
• Fue l suppl y syste m
• Righ t Primar y HO2 S (Ban k 1 , Senso r 1 )
• MA P senso r
• Contaminate d fue l
• Valv e clearanc e
• Fue l suppl y syste m
• Lef t Primar y H02 S (Ban k 2 , Senso r 1 )
• MA P senso r
• Contaminate d fue l• Exhaus t leakag e
• Fue l suppl y syste m
• Lef t Primar y H02 S (Ban k 2 , Senso r 1 )
• MA P senso r
• Contaminate d fue l
• 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
• Ope n o r shor t i n Righ t Knoc k Senso r
(Ban k 1 ) circui t
• Righ t Knoc k Senso r (Ban k 1 )
• PC M
• Ope n o r shor t i n Lef t Knoc k Senso r
(Bank 2 ) circui t• Lef t Knoc k Senso r (Ban k 2 )• PC M
Page
11-5 1
11-5 3
11-57
11-5 7
11-5 7
11-5 7
11-5 9
*2: Thes e DTC s requir e tw o "trips " o r tw o drivin g cycle s unles s th e SC S servic e connecto r i s connected .
11-90
11-91
11-91
11-95
11-95
ProCarManuals.com

DTC(MI L indication )
P0345 (4 )
P0349 (4 )
P0390 (9 )
P0394 (9 )
P0401 (80)*2
P040 4 (12 )
P0406 (12 )
P042 0 (67)*
2
P045 1 (91 )
P0452 (91 )
P0453 (91 )
P0497 (90)*2
P050 6 (14)*2
P050 7 (14)*2
Detectio n Ite m
Crankshaf t Positio n (CKP ) 1
Senso r Circui t N o Signa l
Crankshaf t Positio n (CKP ) 1
Senso r Intermitten t Interruptio n
Camshaf t Positio n (CMP ) (Cylinde r
Positio n (CYP) ) 1 Senso r Circui t
N o Signa l
Camshaf t Positio n (CMP ) (Cylinde r
Positio n (CYP) ) 1 Senso r
Intermitten t Interruptio n
Exhaust Gas Recirculatio n (EGR )Insufficien t Flo w
Exhaus t Ga s Recirculatio n (EGR )
Valv e Insufficien t Lif t
EG R Valv e Lif t Senso r
High Voltag e
Catalys t Syste m Efficienc y Belo w
Threshol d
Fue l Tan k Pressur e (FTP ) Senso r
Circui t Range/Performanc e
Fue l Tan k Pressur e (FTP ) Senso r
Circui t Lo w Voltag e
Fue l Tan k Pressur e (FTP ) Senso r
Circui t Hig h Voltag e
Evaporativ e Emissio n (EVAP )
Syste m Lo w Purg e Flo w
Idl e Contro l Syste m RP M Lowe r
Tha n Expecte d
Idl e Contro l Syste m RP M Highe r
Tha n Expecte d Probabl
e Caus e
• CK P 1 Senso r
• CK P 1 Senso r circui t
• PC M
• CK P 1 Senso r
• Timin g bel t skippe d teet h
• CM P (CYP ) 1 Senso r
• CM P (CYP ) 1 Senso r circui t
• PC M
• CM P (CYP ) 1 Senso r
• EG R valv e
• EG R lin e
• EG R valv e (wit h positio n sensor )
• EG R valv e positio n senso r circui t
• EG R valv e vacuu m contro l solenoi d valv e
• EG R valv e vacuu m contro l solenoi d valv e
circui t
• EG R lin e• PC M
• EG R valv e (wit h positio n sensor )• EG R valv e positio n senso r circui t• PC M
• Thre e Wa y Catalyti c converte r
• Secondar y HO2 S
• FT P Senso r
• PC M
• Ope n o r shor t i n FT P senso r circui t
• FT P Senso r
• PC M
• Ope n in FT P Senso r circui t
• FT P Senso r
• PC M
• EVA P caniste r purg e valv e
• EVA P caniste r ven t shu t valv e
• IA C valv e
• Throttl e bod y
• IA C valv e
• IA C therma l valv e
• Throttl e bod y
Page
11-6 4
11-6 4
11-6 4
11-6 4
11-85
11-9 0
11-10 2
11-76
11-7 8
*2: Thes e DTC s requir e tw o "trips " o r tw o drivin g cycle s unles s th e SC S servic e connecto r i s connected .
(cont'd)
11-167
11-165
11-177
11-178
11-180
ProCarManuals.com

DTC(MIL indication )
P1386 (59 )
P138 7 (59 )
P145 6 (90)*
2
P145 7 (90)*2
P148 6 (87 )
P169 0 (35 )
P169 6 (36 )
PI 69 7 (36 )
P17xx (70 ) *3
P219 5 (2)*2
P219 7 (1)*2
P222 7 (13 )
P2228 (13 )
P2229 (13 )
Detection Ite m
Camshaf t Positio n (CMP ) (Cylinde r
Positio n (CYP) ) 2 Senso r
Intermitten t Interruptio n
Camshaft Positio n (CMP ) (Cylinde r
Positio n (CYP) ) 2 Senso r
Circuit N o Signa l
Evaporativ e Emissio n (EVAP )
Contro l Syste m Leakag e (Fue l
Tan k System )
Evaporativ e Emissio n (EVAP )
Contro l Syste m Leakag e (EVA P
Caniste r Area )
Coolin g Syste m Malfunctio n
TCST B Lin e Failur e
TCF C Signa l
Lo w Voltag e
TCF C Signa l
Hig h Voltag e
Automati c Transaxl e Syste m
Malfunctio n
Right Primar y Heate d Oxyge n
Senso r (Righ t Primar y HO2S )
Circui t Lo w Voltag e (Ban k 1 ,
Senso r 1 )
Lef t Primar y Heate d Oxyge n
Senso r (Lef t Primar y H02S )
Circui t Lo w Voltag e (Ban k 2 ,
Senso r 1 )
Barometri c Pressur e (BARO )
Senso r Circui t Range /
Performanc e Proble m
Barometri c Pressur e (BARO )
Senso r Circui t Lo w Voltag e
Barometri c Pressur e (BARO )
Senso r Circui t Hig h Voltag e Probabl
e Caus e
• CM P (CYP ) 2 Senso r
• CM P (CYP ) 2 Senso r
• CM P (CYP ) 2 Senso r circui t
• PC M
• Vacuu m connectio n
• Fue l tan k
• FT P senso r
• Fuel fill ca p• EVA P bypas s solenoi d valv e
• EVA P tw o wa y valv e
• EVA P caniste r ven t shu t valv e
• EVA P caniste r
• EVA P caniste r purg e valv e
• Vacuu m connectio n
• EVA P caniste r
• FT P senso r
• EVA P bypas s solenoi d valv e
• EVA P tw o wa y valv e
• EVA P caniste r ven t shu t valv e• Fue l tan k
• EVA P caniste r purg e valv e
• Radiato r Fa n Circui t
• Thermosta t
• TCST B Lin e
• VS A converte r uni t
• PC M
• TCF C Lin e
• VS A converte r uni t
• PC M
• TCF C Lin e• VS A converte r uni t• PC M
• Shor t i n Righ t Primar y H02 S (Ban k 1 ,
Senso r 1 ) circui t
• Righ t Primar y HO2 S (Ban k 1 , Senso r 1 )
• Fue l suppl y syste m
• PC M
• Shor t i n Lef t Primar y H02 S (Ban k 2 ,
Senso r 1 ) circui t
• Lef t Primar y H02 S (Ban k 2 , Senso r 1 )
• Fue l suppl y syste m
• PC M
• PC M (Bar o sensor )
• PC M (Bar o sensor )
• PC M (Bar o sensor ) Pag
e
11-6 4
11-6 4
11-9 2
11-97
11-6 7
Sectio n 1 9
Sectio n 1 9
Sectio n 1 9
Sectio n 1 4
11-5 4
11-5 4
11-6 8
11-6 9
11-6 9
*2: Thes e DTC s requir e tw o "trips " o r tw o drivin g cycle s unles s th e SC S servic e connecto r i s connected .*3: Th e indicato r ligh t an d th e Malfunctio n Indicato r Lam p (MIL ) ma y com e o n simultaneously .
(cont'd)
ProCarManuals.com

Troubleshooting
Diagnostic Troubl e Cod e (DTC ) Char t (cont'd )
DTC(MI L indication )
P2297 (2 )
P2298 (1 )
Detection Ite m
Righ t Primar y Heate d Oxyge n
Senso r (Righ t Primar y H02S )
Circui t Hig h Voltag e
(Ban k 1 , Sensor . 1 )
Lef t Primar y Heate d Oxyge n
Senso r (Lef t Primar y H02S )
Circui t Hig h Voltag e
(Ban k 2 , Senso r 1 ) Probabl
e Caus e
• Righ t Primar y H02 S (Ban k 2 , Senso r 1 )
• Shor t i n Righ t Primar y H02 S (Ban k 2 ,
Senso r 1 ) circui t
• Fue l suppl y syste m
• PC M
• Lef t Primar y HO2 S (Ban k 2 , Senso r 1 )
• Shor t i n Lef t Primar y H02 S (Ban k 2 ,
Senso r 1 ) circui t
• Fue l suppl y syste m
• PC M
Pag e
11-5 6
11-5 6
ProCarManuals.com

Engine Coolant Temperature (ECT) Sensor

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0116: A range/performance problem in the

Engine Coolant Temperature (ECT) sensor.

The ECT Sensor is a temperature dependent resistor (thermistor). The resistance of the thermistor decreases as the engine

coolant temperature increases as shown below.

NOTE: If DTC P0117 and/or P0118 are stored at the same time as DTC P0116 and/or P0125, troubleshoot those DTCs first,

then troubleshoot DTC P0116 and/or P0125.

Possible Cause

• ECT sensor deterioration

• Malfunction in the thermostat and the cooling system

Troubleshooting Flowchart

— The MIL has been reported on.

— DTC P0116 is stored.

Problem verification:

1. Turn the ignition switch OFF.

2. Check the ETC output tempera-

ture or voltage with the HDS or

the scan tool.

Is about 176°F (80°C) or high-

er, or 0.86 V or less indicated?

YES

Problem verification:

1. Note current coolant

temperature.

2. Turn the ignition switch OFF.

3. Cool the engine for 1 hour.

4. Check the ETC output temper-

ature or voltage with the HDS

or the scan tool.

Does the ECT change 3.6°F

(2°C) or more?

NO

Replace the ECT sensor.
NO

YES
Problem verification:

1. Note current coolant

temperature.

2. Start the engine. Hold the

engine speed at 3,000 rpm

with no load (in Park or neu-

tral)
until
the
radiator
fan

comes on, then let it idle.

3. Check the ETC output temper-

ature or voltage with the HDS

or the scan tool.

Does the ECT change 3.6°F

(2°C) or more?
NO

YES

Intermittent failure, system is OK

at this time. Check the thermo-

stat and the cooling system.

Intermittent failure, system is OK

at this time. Check the thermo-

stat and the cooling system.

(cont'd)ProCarManuals.com

PGM-FI System

Engine Coolant Temperature (ECT) Sensor (cont'd)

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0125: Engine Coolant Temperature

(ECT) sensor malfunction/slow response.

Is about 86°F (30°C) or less, or

2.61 V or higher indicated?
Intermittent failure, system is OK

at this time.

Check the thermostat and the

cooling system.

YES

Problem verification:

1. Let it idle for 6 minutes.

2. Check the ETC output temper-

ature or voltage with the HDS

or the scan tool.

Is about 86°F (30°C) or less, or

2.61 V or higher indicated?
Intermittent failure, system is OK

at this time.

Check the thermostat and the

cooling system.

YES

Replace the ECT sensor.

11-50
Problem verification:

1. Start the engine, and let it idle.

2. Check the ETC output temper-

ature or voltage with the HDS

or the scan tool.
— The MIL has been reported on

— DTC P0125 is stored.ProCarManuals.com

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0133: A slow response problem in the Right

Primary Heated Oxygen Sensor (Right Primary H02S) (Bank 1, Sensor 1) circuit.

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0153: A slow response problem in the Left

Primary Heated Oxygen Sensor (Left Primary HO2S) (Bank 2, Sensor 1) circuit.

Description

By controlling the air/fuel ratio with a Primary HO2S (Sensor 1) and a Secondary HO2S (Sensor 2), the deterioration of the

Primary H02S (Sensor 1) can be evaluated by its feedback period. When the feedback period of the H02S exceeds a certain

value during stable driving conditions, the sensor will be judged as deteriorated. When deterioration has been detected dur-

ing two consecutive trips, the MIL comes on and DTC P0133 or P0153 will be stored.

NOTE: If DTC P2195, P0134, P2297 and/or P0135 are stored at the same time as DTC P0133, troubleshoot those DTCs first,

then troubleshoot DTC P0133. If DTC P2197, P0154, P2298 and/or P0155 are stored at the same time as DTC P0153, trou-

bleshoot those DTCs first, then troubleshoot DTC P0153.

Possible Cause

• Primary HO2S (Sensor 1) Deterioration

• Primary H02S Heater (Sensor 1) Deterioration

• Exhaust system leakage
Primary Heated Oxygen Sensor (HO2S) (Sensor 1)

The Heated Oxygen Sensors (HO2S) detect the oxygen content in the exhaust gas and signal the PCM. In operation, the

PCM receives the signals from the sensor and varies the duration during which fuel is injected. To stabilize the sensor's

output, the sensor has an internal heater. The Right Primary HO2S (Bank 1, Sensor 1) is installed in the right exhaust man-

ifold, and the Left Primary HO2S (Bank 2, Sensor 1) is installed in the left exhaust manifold.ProCarManuals.com