Infinity_FX35_FX45_2003-2005

TroubleCodes (7 of 9)

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4.5L V8 - Auto



Trouble Code: P0182

Fuel Tank Temperature Sensor Circuit Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage (less than 0.20v) on the FTT sensor circuit in the CCM test. Note: The fuel tank temperature sensor should read 3.5v at 68ºF.

Possible Causes:



FTT sensor signal circuit is shorted to ground
 
FTT sensor connector is damaged (causing a short circuit)
 
FTT sensor is damaged or has failed
 

Trouble Code: P0183

Fuel Tank Temperature Sensor Circuit High Input:

Trouble Code Conditions: Key on or engine running; and PCM detected an unexpected high voltage (more than 4.90v) on the FTT sensor circuit in the CCM test. Note: The fuel tank temperature sensor should read 3.5v at 68ºF.

Possible Causes:



FTT sensor connector is damaged (causing an open circuit)
 
FTT sensor signal circuit is open or shorted to VREF
 
FTT sensor ground circuit is open
 
FTT sensor is damaged or has failed
 

Trouble Code: P0222

ETC Throttle Position Sensor 1 Signal Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage on the ETC TP Sensor 1 signal circuit. The ETC Actuator consists of a throttle control motor and TP sensors. The TP sensors respond to movement of the throttle valve. The PCM judges the actual opening angle of the throttle valve from the signals from the TP1 and TP2 sensors during engine operation.

Possible Causes:



ETC TP1 sensor connector is damaged (it may be shorted)
 
ETC TP1 sensor signal circuit is shorted to ground
 
ETC TP1 sensor is damaged or it failed (ETC actuator failure)
 

Trouble Code: P0223

ETC Throttle Position Sensor 1 Signal High Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected high voltage on the ETC TP Sensor 1 signal circuit. The ETC Actuator consists of a throttle control motor and TP sensors. The TP sensors respond to movement of the throttle valve. The PCM judges the actual opening angle of the throttle valve from the signals from the TP1 and TP2 sensors during engine operation.

Possible Causes:



ETC TP1 sensor connector is damaged (it may be open)
 
ETC TP1 sensor signal circuit is open between TP1 and PCM
 
ETC TP1 sensor is damaged or it failed (ETC actuator failure)
 

Trouble Code: P0226

Accelerator Pedal Position Sensor 1 Signal Range/Performance:

Trouble Code Conditions: Engine started, and the PCM detected a signal from the APP1 sensor that was not plausible when compared to the engine speed and engine load signals during the test period.

Possible Causes:



APP1 sensor connector is damaged (may be open or shorted)
 
APP1 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P0227

Accelerator Pedal Position Sensor 1 Signal Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage condition the APP1 sensor signal circuit.

Possible Causes:



APP1 sensor connector is damaged (it may be shorted)
 
APP1 sensor signal circuit is shorted to ground
 
APP1 sensor signal circuit is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P0228

Accelerator Pedal Position Sensor 1 Signal High Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected high voltage condition the APP1 sensor signal circuit.

Possible Causes:



APP1 sensor connector is damaged (it may be open)
 
APP1 sensor signal circuit is shorted to VREF or system power
 
APP1 sensor signal circuit is damaged or has failed
 
TSB 01-064 (10/19/01) contains information related to this code
 

Trouble Code: P0300

Multiple Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS more than 3 mph, and the PCM detected an irregular CKP sensor signal that indicated a multiple misfire condition existed in two or more cylinders during the 200 or 1000 revolution period of the Misfire Monitor test.

Possible Causes:



Base engine problem that affects two or more cylinders
 
CMP or CKP sensor signals erratic or out of phase
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects two or more cylinders (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem that affects two or more cylinders
 
Vehicle driven while quite low on fuel (less than 1/8 of a tank)
 

Trouble Code: P0301

Cylinder 1 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 1 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 1
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 1 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 1
 

Trouble Code: P0302

Cylinder 2 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 2 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 2
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 2 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 2
 

Trouble Code: P0303

Cylinder 3 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 3 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 3
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 3 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 3
 

Trouble Code: P0304

Cylinder 4 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 4 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder4
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 4 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 4
 

Trouble Code: P0305

Cylinder 5 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 5 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 5
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 5 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 5
 

Trouble Code: P0306

Cylinder 6 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 6 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 6
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 6 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 6
 

Trouble Code: P0307

Cylinder 7 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 7 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 7
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 7 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 7
 

Trouble Code: P0308

Cylinder 8 Misfire Detected:

Trouble Code Conditions: Engine started, engine speed from 400-3500 rpm, VSS over 3 mph, and the PCM detected an irregular CKP sensor signal indicating a misfire present in Cylinder 8 during the 200 or 1000 revolution test.

Possible Causes:



Base engine mechanical problem that affects only Cylinder 8
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 8 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 8
 

Trouble Code: P0327

Knock Sensor Circuit Low Input (Bank 1):

Trouble Code Conditions: Engine started, system voltage over 10.0v, and the PCM detected an excessively low voltage on the Bank 1 Knock sensor circuit. Note: The Knock sensor signal will read 2.5v at idle if no fault exists.

Possible Causes:



Knock sensor signal circuit is shorted to ground
 
Knock sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0328

Knock Sensor Circuit High Input (Bank 1):

Trouble Code Conditions: Engine started, system voltage over 10.0v, and the PCM detected an excessively high voltage on the Bank 1 Knock sensor circuit. Note: The Knock sensor signal will read 2.5v at idle if no fault exists.

Possible Causes:



Knock sensor signal circuit is open
 
Knock sensor signal circuit is shorted to VREF or system power
 
Knock sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0330

Knock Sensor Circuit Malfunction (Bank 2):

Trouble Code Conditions: Engine started, system voltage over 10.0v, and the PCM detected the Knock sensor signal was either too high or too low. Note: The Knock sensor signal will read 2.5v at idle if no fault exists.

Possible Causes:



Knock sensor signal circuit is open or shorted to ground
 
Knock sensor signal circuit is shorted to VREF or system power
 
Knock sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0335

Crankshaft Position Sensor Circuit Malfunction:

Trouble Code Conditions: Engine cranking for 2 seconds, and the PCM did not detect a proper CKP sensor (1º) signal, or with engine running, it did not detect a normal pattern of CKP sensor signals.

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor signal is shorted to VREF or system power
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340

Camshaft Position Sensor Circuit Malfunction (Bank 1):

Trouble Code Conditions: Engine cranking for over 2 seconds, and the PCM did not detect any CMP sensor signals, or with engine running, the PCM did not detect any CMP signals, or it detected an abnormal CMP sensor pattern.

Possible Causes:



Camshaft (intake) is damaged or has failed (Bank 1)
 
CMP Phase sensor signal circuit is open or shorted to ground
 
CMP Phase sensor is damaged or has failed
 
Low battery voltage condition present during engine cranking
 
Starter motor circuit problem during engine cranking
 
PCM has failed
 

Trouble Code: P0345

Camshaft Position Sensor Circuit Malfunction (Bank 2):

Trouble Code Conditions: Engine cranking for over 2 seconds, and the PCM did not detect any CMP sensor signals, or with engine running, the PCM did not detect any CMP signals, or it detected an abnormal CMP sensor pattern.

Possible Causes:



Camshaft (intake) is damaged or has failed (Bank 2)
 
CMP Phase sensor signal circuit is open or shorted to ground
 
CMP Phase sensor is damaged or has failed
 
Low battery voltage condition present during engine cranking
 
Starter motor circuit problem during engine cranking
 
PCM has failed
 

Trouble Code: P0420

Catalyst Efficiency Below Normal (Bank 1):

Trouble Code Conditions: Engine started, ECT sensor signal over 158ºF, vehicle driven at 53-60 mph for 5-6 minutes, and the PCM detected the rear HO2S-22 switch rate was similar to the front HO2S switch rate for 3 seconds.

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Continuous engine misfire conditions, or low ignition coil output
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 

Trouble Code: P0430

Catalyst Efficiency Below Normal (Bank 2):

Trouble Code Conditions: Engine started, ECT sensor signal over 158ºF, vehicle driven at 53-60 mph for 5-6 minutes, and the PCM detected the rear HO2S-22 switch rate was similar to the front HO2S switch rate for 3 seconds.

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Continuous engine misfire conditions, or low ignition coil output
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 

Trouble Code: P0441

EVAP System Incorrect Purge Flow Detected:

Trouble Code Conditions: DTC P0226, P0227, P0228, P1227 and P1228 not set, IAT sensor signal from 32-86ºF, ECT sensor signal from 32-158ºF, engine running at cruise, then with the EVAP purge solenoid open, the PCM detected an incorrect amount of pressure drop, or the presence of a leak in the EVAP system during the EVAP Monitor test period.

Possible Causes:



EVAP canister purge volume control solenoid is stuck closed
 
EVAP canister purge volume control solenoid circuit is shorted
 
EVAP control system pressure sensor is damaged or has failed
 
EVAP emission canister or rubber tube is cracked or restricted
 
EVAP purge port is blocked or restricted
 
EVAP canister vent control valve is damaged or has failed
 

Trouble Code: P0442

EVAP System Small Leak (0.040") Detected:

Trouble Code Conditions: DTC P1448 not set, IAT sensor signal from 32-86ºF, ECT sensor signal from 32-158ºF, fuel level from 25-75%, engine started, then after the EVAP cut-valve was opened (to clear the line between the tank and EVAP purge valve), the PCM closed the Vent control valve, opened the Purge Volume Control valve to depressurize the system, and after a period of time, it closed the Purge Volume Control valve, and then the PCM determined a small leak present in the system.

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid or canister vacuum line loose or off
 
EVAP purge solenoid is damaged or has failed
 
EVAP emission canister is dirty, restricted or full of water
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap loose, missing or it is the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Small leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a leak in a component
 
Refueling control valve is damaged or has failed
 
Vacuum hose leaking between intake manifold and Purge valve
 

Trouble Code: P0444

EVAP Canister Purge Volume Control Solenoid Circuit Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage condition on the EVAP Canister Purge Volume Control Solenoid control circuit during the CCM test period.

Possible Causes:



Canister purge volume control solenoid connector is damaged
 
Canister purge volume control solenoid circuit is shorted
 
Canister purge volume control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0445

EVAP Canister Purge Volume Control Solenoid Circuit High Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected high voltage condition on the EVAP Canister Purge Volume Control Solenoid control circuit during the CCM test period.

Possible Causes:



Canister purge volume control solenoid connector is damaged
 
Canister purge volume control solenoid circuit is open
 
Canister purge volume control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0447

EVAP Canister Vent Control Solenoid Circuit Malfunction:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected voltage condition on the EVAP Canister Vent solenoid control circuit.

Possible Causes:



Canister vent control solenoid connector is damaged or loose
 
Canister vent control solenoid circuit is open (high voltage)
 
Canister vent control solenoid is damaged or failed
 
PCM is damaged or has failed
 

Trouble Code: P0451

EVAP System Pressure Sensor Range/Performance:

Trouble Code Conditions: Engine started, vehicle driven at cruise speed for 2-3 minutes, and the PCM detected an EVAP Pressure sensor signal that was not plausible when compared to various other sensor inputs.

Possible Causes:



EVAP pressure sensor circuit connector is damaged or loose
 
EVAP pressure sensor circuit open, shorted to ground or VREF
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0452

EVAP System Pressure Sensor Circuit Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage condition on the EVAP Pressure sensor signal circuit.

Possible Causes:



EVAP pressure sensor circuit connector is damaged (loose)
 
EVAP pressure sensor circuit is shorted to ground
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0453

EVAP System Pressure Sensor Circuit High Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected high voltage condition on the EVAP Pressure sensor signal circuit.

Possible Causes:



EVAP pressure sensor circuit connector is damaged (shorted)
 
EVAP pressure sensor circuit is open or shorted to VREF
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0455

EVAP System Gross Leak (0.080") Detected:

Trouble Code Conditions: DTC P1448 not set, vehicle driven at 53-60 mph for 6-8 minutes, ECT sensor signal from 32-158ºF, IAT sensor signal from 32-86ºF, fuel level from 25-75%, and the PCM detected a large leak (larger than 0.040") somewhere between the fuel tank and EVAP canister purge volume control solenoid during the EVAP Monitor leak test.

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid or canister vacuum line loose or off
 
EVAP purge solenoid is damaged or has failed
 
EVAP emission canister is dirty, restricted or full of water
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap loose, missing or it is the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Large leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a large leak in a component
 
Refueling control valve is damaged or has failed
 
Vacuum hose leaking between intake manifold and Purge valve
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0456

EVAP System Very Small Leak (0.020") Detected:

Trouble Code Conditions: IAT sensor signal from 32-86ºF, ECT sensor signal from 32-158ºF, fuel level from 25-75%, engine started, vehicle driven with the EVAP purge and vent solenoids both enabled, and the PCM detected the presence of a very small leak in the EVAP system in the leak test.

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid is damaged or has failed
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap not tightened properly or the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Very small leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a small leak in a component
 
Refueling control valve is damaged or has failed
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0460

Fuel Level Sensor Slosh Or Noise Detected:

Trouble Code Conditions: Engine started, engine running with gear selector in Park (vehicle not moving), and the PCM detected too much variation in the Fuel Level sensor input (i.e., a "noise" condition with the vehicle stopped).

Possible Causes:



Fuel level sensor connector damaged or loose (disconnected)
 
Fuel level sensor signal open or shorted to ground (intermittent)
 
Fuel level sensor is damaged or has failed (intermittent fault)
 

Trouble Code: P0461

Fuel Level Sensor Range/Performance:

Trouble Code Conditions: Engine started, vehicle driven a distance of more than 30 miles, the PCM did not detect any change in the Fuel Level sensor input (i.e., there was no change after driving the vehicle for several miles).

Possible Causes:



Fuel level sensor signal open or shorted to ground
 
Fuel level sensor is damaged (stuck) or has failed
 
PCM has failed
 

Trouble Code: P0462

Fuel Level Sensor Circuit Low Input:

Trouble Code Conditions: Key on or engine running; and the PCM detected an unexpected low voltage condition on the Fuel Level sensor circuit during testing. The fuel level sensor is mounted in the fuel level sensor unit in the fuel tank. This sensor sends a signal to the PCM indicating the fuel level.

Possible Causes:



Fuel level sensor connector is damaged or loose (intermittent)
 
Fuel level sensor signal is shorted to ground
 
Fuel level sensor is damaged (stuck) or has failed
 

Trouble Code: P0463

Fuel Level Sensor Circuit High Input:

Trouble Code Conditions: Key on or engine running; and PCM detected an unexpected high voltage condition on the Fuel Level sensor input during testing. The fuel level sensor is mounted in the fuel level sensor unit in the fuel tank. This sensor sends a signal to the PCM indicating the fuel level.

Possible Causes:



Fuel level sensor connector is damaged or loose (intermittent)
 
Fuel level sensor signal shorted to ground
 
Fuel level sensor is damaged or has failed
 

Trouble Code: P0500

Vehicle Speed Sensor Circuit Malfunction:

Trouble Code Conditions: Engine started, vehicle driven at over 1500 rpm at light engine load for over 1 minute, and the PCM did not detect any VSS signals.

Possible Causes:



ABS/TCS control unit is damaged or has failed
 
Combination meter is damaged or has failed
 
VSS signal circuit is open, shorted to ground or shorted to B+
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0506

Idle Speed Control System RPM Lower Than Expected:

Trouble Code Conditions: Engine started, engine running at hot idle speed for 30 seconds, and the PCM detected the Idle Speed Control system engine speed was more than 100 rpm lower than the desired (control) idle speed.

Possible Causes:



Air inlet duct is collapsed, loose or air filter element is clogged
 
Base engine problem (i.e., a compression or misfire problem)
 
Idle air inlet passage or throttle bore is dirty or full of deposits
 
Electronic throttle control actuator connector is open
 
Electronic throttle control actuator circuit is open
 
Electronic throttle control actuator is damaged or has failed
 

 
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