Acura 3.5 RL Manual page 379

DTC
(MIL indication)
P0345 (4)
P0349 (4)
P0390 (9)
P0394 (9)
2
P0401 (80)*
P0404 (12)
P0406 (12)
2
P0420 (67)*
P0451 (91)
P0452 (91)
P0453 (91)
2
P0497 (90)*
2
P0506 (14)*
2
P0507 (14)*
*2: These DTCs require two "trips" or two driving cycles unless the SCS service connector is connected.
Detection Item
Crankshaft Position (CKP) 1
Sensor Circuit No Signal
Crankshaft Position (CKP) 1
Sensor Intermittent Interruption
Camshaft Position (CMP) (Cylinder
Position (CYP)) 1 Sensor Circuit
No Signal
Camshaft Position (CMP) (Cylinder
Position (CYP)) 1 Sensor
Intermittent Interruption
Exhaust Gas Recirculation (EGR)
Insufficient Flow
Exhaust Gas Recirculation (EGR)
Valve Insufficient Lift
EGR Valve Lift Sensor
High Voltage
Catalyst System Efficiency Below
Threshold
Fuel Tank Pressure (FTP) Sensor
Circuit Range/Performance
Fuel Tank Pressure (FTP) Sensor
Circuit Low Voltage
Fuel Tank Pressure (FTP) Sensor
Circuit High Voltage
Evaporative Emission (EVAP)
System Low Purge Flow
Idle Control System RPM Lower
Than Expected
Idle Control System RPM Higher
Than Expected
Probable Cause
• CKP 1 Sensor
• CKP 1 Sensor circuit
• PCM
• CKP 1 Sensor
• Timing belt skipped teeth
• CMP (CYP) 1 Sensor
• CMP (CYP) 1 Sensor circuit
• PCM
• CMP (CYP) 1 Sensor
• EGR valve
• EGR line
• EGR valve (with position sensor)
• EGR valve position sensor circuit
• EGR valve vacuum control solenoid valve
• EGR valve vacuum control solenoid valve
circuit
• EGR line
• PCM
• EGR valve (with position sensor)
• EGR valve position sensor circuit
• PCM
• Three Way Catalytic converter
• Secondary HO2S
• FTP Sensor
• PCM
• Open or short in FTP sensor circuit
• FTP Sensor
• PCM
• Open in FTP Sensor circuit
• FTP Sensor
• PCM
• EVAP canister purge valve
• EVAP canister vent shut valve
• IAC valve
• Throttle body
• IAC valve
• IAC thermal valve
• Throttle body
Page
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11-64
11-64
11-64
11-167
11-85
11-90
11-165
11-177
11-178
11-180
11-102
11-76
11-78
(cont'd)