Acura RL. Manual - part 504

P0111 (10)

o

(3)

Intake Air Temperature 
(IAT) Sensor Circuit 
Range/Performance 
Problem

ON

P0112 (10)

--

Intake Air Temperature 
(IAT) Sensor Circuit Low 
Voltage

ON

P0113 (10)

--

Intake Air Temperature 
(IAT) Sensor Circuit High 
Voltage

ON

P0116 (86)

o

Engine Coolant 
Temperature (ECT) 
Sensor 1 Circuit Range/ 
Performance Problem

ON

P0117 (6)

--

Engine Coolant 
Temperature (ECT) 
Sensor 1 Circuit Low 
Voltage

ON

P0118 (6)

--

Engine Coolant 
Temperature (ECT) 
Sensor 1 Circuit High 
Voltage

ON

P0122 (7)

--

Throttle Position (TP) 
Sensor A Circuit Low 
Voltage

ON

P0123 (7)

--

Throttle Position (TP) 
Sensor A Circuit High 
Voltage

ON

P0125 (86)

o

Engine Coolant 
Temperature (ECT) 
Sensor 1 Malfunction 
Slow Response

ON

P0128 (87)

o

Cooling System 
Malfunction

ON

P0133 (157)

o

Rear Air Fuel Ratio (A/F) 
Sensor (Bank 1, Sensor 1) 
Circuit Slow Response

ON

P0134 (151)

o

(3)

Rear Air Fuel Ratio (A/F) 
Sensor (Bank 1, Sensor 1) 
Heater System 
Malfunction

ON

P0135 (151)

--

Rear Air Fuel Ratio (A/F) 
Sensor (Bank 1, Sensor 1) 
Heater Circuit 
Malfunction

ON

P0137 (161)

o

(2)

Rear Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
1, Sensor 2)) Circuit Low 

ON

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel and Emissions Systems - RL

  

me 

 

Friday, June 05, 2009 2:33:26 PM

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© 2005 Mitchell Repair Information Company, LLC. 

Voltage

P0138 (161)

o

(2)

Rear Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
1, Sensor 2,)) Circuit High 
Voltage

ON

P0139 (161)

o

Rear Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
1, Sensor 2)) Circuit Slow 
Response

ON

P0141 (163)

--

Rear Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
1, Sensor 2)) Heater 
Circuit Malfunction

ON

P0153 (158)

o

Front Air Fuel Ratio (A/F) 
Sensor (Bank 2, Sensor 1) 
Circuit Slow Response

ON

P0154 (152)

o

(3)

Front Air Fuel Ratio (A/F) 
Sensor (Bank 2, Sensor 1) 
Heater System 
Malfunction

ON

P0155 (152)

--

Front Air Fuel Ratio (A/F) 
Sensor (Bank 2, Sensor 1) 
Heater Circuit 
Malfunction

ON

P0157 (162)

o

Front Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
2, Sensor 2)) Circuit Low 
Voltage

ON

P0158 (162)

o

Front Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
2, Sensor 2)) Circuit High 
Voltage

ON

P0159 (162)

o

Front Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
2, Sensor 2)) Circuit Slow 
Response

ON

P0161 (164)

--

Front Secondary Heated 
Oxygen Sensor 
(Secondary HO2S (Bank 
2, Sensor 2)) Heater 
Circuit Malfunction

ON

P0171 (153)

o

Rear Bank (Bank 1) Fuel 
System Too Lean

ON

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel and Emissions Systems - RL

  

me 

 

Friday, June 05, 2009 2:33:26 PM

Page 12 

© 2005 Mitchell Repair Information Company, LLC. 

DTC TROUBLESHOOTING CHART 

P0172 (153)

o

Rear Bank (Bank 1) Fuel 
System Too Rich

ON

P0174 (154)

o

Front Bank (Bank 2) Fuel 
System Too Lean

ON

P0175 (154)

o

Front Bank (Bank 2) Fuel 
System Too Rich

ON

P0222 (7)

--

Throttle Position (TP) 
Sensor B Circuit Low 
Voltage

ON

P0223 (7)

--

Throttle Position (TP) 
Sensor B Circuit High 
Voltage

ON

P0300 (77) and any 
combination of P0301 
(71) P0302 (72) P0303 
(73) P0304 (74) P0305 
(75) P0306 (76)

o

Random Misfire Detected

ON

NOTE:

The above DTCs are indicated when the PGM-FI system is selected in the HDS. 
Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are 
indicated in the PGM-FI system, select the A/T system, and check for automatic transmission 
DTCs.

(1)

These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.

(2)

'05 models

(3)

'06-08 models

DTC (MIL indication

(1)

)

Two Drive Cycle 

Detection

Detection Item

MIL

P0301 (71)

o

No. 1 Cylinder Misfire 
Detected

ON

P0302 (72)

o

No. 2 Cylinder Misfire 
Detected

ON

P0303 (73)

o

No. 3 Cylinder Misfire 
Detected

ON

P0304 (74)

o

No. 4 Cylinder Misfire 
Detected

ON

P0305 (75)

o

No. 5 Cylinder Misfire 
Detected

ON

P0306 (76)

o

No. 6 Cylinder Misfire 
Detected

ON

P0325 (23)

--

Knock Sensor Circuit 
Malfunction

ON

P0335 (4)

--

Crankshaft Position 
(CKP) Sensor A No 

ON

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel and Emissions Systems - RL

  

me 

 

Friday, June 05, 2009 2:33:26 PM

Page 13 

© 2005 Mitchell Repair Information Company, LLC. 

Signal

P0339 (4)

--

Crankshaft Position 
(CKP) Sensor A Circuit 
Intermittent Interruption

ON

P0340 (9)

--

Camshaft Position (CMP) 
Sensor No Signal

ON

P0344 (9)

--

Camshaft Position (CMP) 
Sensor Intermittent 
Interruption

ON

P0385 (54)

--

Crankshaft Position 
(CKP) Sensor B No 
Signal

ON

P0389 (54)

--

Crankshaft Position 
(CKP) Sensor B Circuit 
Intermittent Interruption

ON

P0401 (80)

o

Exhaust Gas Recirculation 
(EGR) Insufficient Flow

ON

P0404 (12)

o

Exhaust Gas Recirculation 
(EGR) Control Circuit 
Range/Performance 
Problem

ON

P0406 (12)

--

Exhaust Gas Recirculation 
(EGR) Valve Position 
Sensor Circuit High 
Voltage

ON

P0420 (165)

o

Rear Bank Catalyst 
System Efficiency Below 
Threshold (Bank 1)

ON

P0430 (166)

o

Front Bank Catalyst 
System Efficiency Below 
Threshold (Bank 2)

ON

P0443 (92)

--

Evaporative Emission 
(EVAP) Canister Purge 
Valve Circuit Malfunction

ON

P0451 (91)

o

Fuel Tank Pressure (FTP) 
Sensor Circuit 
Range/Performance 
Problem

ON

P0452 (91)

--

Fuel Tank Pressure (FTP) 
Sensor Circuit Low 
Voltage

ON

P0453 (91)

--

Fuel Tank Pressure (FTP) 
Sensor Circuit High 
Voltage

ON

P0455 (90)

o 

(2)

Evaporative Emission 
(EVAP) System Large 
Leak Detected

ON

P0456 (90)

o

Evaporative Emission 

ON

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel and Emissions Systems - RL

  

me 

 

Friday, June 05, 2009 2:33:26 PM

Page 14 

© 2005 Mitchell Repair Information Company, LLC.