Ford Freestar, Monterey 2004-2006

4.2L V6 VIN 2 Auto 3

Print

Trouble Code: P0302



Cylinder Number 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical problem that affects only Cylinder 2
 
Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 2
 

Trouble Code: P0303



Cylinder Number 3 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical problem that affects only Cylinder 3
 
Fuel delivery component problem that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 3
 

Trouble Code: P0304



Cylinder Number 4 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical problem that affects only Cylinder 4
 
Fuel delivery component problem that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 4
 

Trouble Code: P0305



Cylinder Number 5 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical problem that affects only Cylinder 5
 
Fuel delivery component problem that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 5
 

Trouble Code: P0306



Cylinder Number 6 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical problem that affects only Cylinder 6
 
Fuel delivery component problem that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 6
 

Trouble Code: P0315



Unable to Learn Crankshaft Variation

Possible Causes:



Inspect the CKP sensor for damage
 
Inspect the CKP sensor for debris on the rotor
 
Inspect the crankshaft pulse wheel for damaged teeth
 
Inspect the crankshaft pulse wheel for wobble (loose condition)
 

Trouble Code: P0316



Misfire in the First 1000 Revolutions

Possible Causes:



Check for CMC DTC P0136, P0156, P0171, P0172, P0175, P1130 and P1150. Repair these adaptive fuel and HO2S codes
 
Check for any other CMC in memory. Repair these codes first!
 
Ignore P1000 codes that set during KOEO and KOER Self-Test
 

Trouble Code: P0344



Camshaft Position Sensor A Circuit Intermittent (Bank 1 or single sensor)

Possible Causes:



Intermittent open circuit
 
Intermittent short circuit
 
Damaged sensor shielding
 
Damaged sensor
 

Trouble Code: P0345



Camshaft Position Sensor A Circuit (Bank 2)

Possible Causes:



CMP circuit open
 
CMP circuit short to GND
 
CMP circuit short to voltage
 
SIG RTN open (VR sensor)
 
CMP GND open (Hall-effect sensor)
 
CMP circuit short to CMP2 circuit (if equipped)
 
CMP incorrectly installed (Hall-effect sensor)
 
Damaged CMP sensor shielding
 
Damaged CMP sensor
 
Damaged PCM
 

Trouble Code: P0349



Camshaft Position Sensor A Circuit Intermittent (Bank 2)

Possible Causes:



Intermittent open circuit
 
Intermittent short circuit
 
Damaged sensor shielding
 
Damaged sensor
 

Trouble Code: P0355



Ignition Coil 5 Primary/Secondary Circuit Malfunction

Possible Causes:



Ignition START/RUN circuit is open or shorted to ground
 
Ignition coil driver 5 circuit open, shorted to ground or to power
 
Ignition coil 5 is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0356



Ignition Coil 6 Primary/Secondary Circuit Malfunction

Possible Causes:



Ignition START/RUN circuit is open or shorted to ground
 
Ignition coil driver 6 circuit open, shorted to ground or to power
 
Ignition coil 6 is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0403



Exhaust Gas Recirculation (EGR) Control Circuit

Possible Causes:



EEGR motor windings open
 
Connector to EEGR not seated
 
Open circuit in the harness from the PCM to the EEGR
 
Short circuit in the EEGR motor
 
Short circuit in the harness from the PCM to the EEGR
 
Damaged PCM
 
EGRVR circuit open
 
VPWR open to EGRVR solenoid
 
EVR circuit short to voltage or ground
 
Damaged EGRVR solenoid
 

Trouble Code: P0405



Exhaust Gas Recirculation (EGR) Sensor A Circuit Low

Possible Causes:



DPFE circuit short to ground
 
Damaged DPFEGR sensor
 
VREF circuit short to ground
 

Trouble Code: P0406



Exhaust Gas Recirculation (EGR) Sensor A Circuit High

Possible Causes:



Differential pressure feedback EGR (DPFEGR) circuit open
 
VREF circuit short to voltage
 
Damaged DPFEGR sensor
 
DPFE circuit short to voltage
 
SIG RTN circuit open
 

Trouble Code: P0410



Secondary Air Injection (AIR) System

Possible Causes:



AIR inlet hose leak
 
AIR inlet hose disconnected
 

Trouble Code: P0442



EVAP Control System Small Leak Detected

Possible Causes:



Aftermarket EVAP parts that do not conform to specifications
 
CV solenoid stays partially open when commanded to close
 
EVAP component seals leaking (i.e., leaks in the Purge valve, fuel vapor control valve tube assembly or fuel vapor vent valve)
 
Fuel filler cap damaged, cross-threaded or loosely installed
 
Loose fuel vapor hose/tube connections to EVAP components
 
Small holes or cuts in fuel vapor hoses or EVAP canister tubes
 

Trouble Code: P0443



EVAP Canister Purge Solenoid Circuit Malfunction

Possible Causes:



EVAP purge solenoid supply circuit is open
 
EVAP purge solenoid control circuit open, shorted to ground
 
EVAP purge solenoid control circuit is shorted to power (B+)
 
EVAP canister purge solenoid valve is damaged or the PCM has failed
 

Trouble Code: P0446



EVAP Canister Vent System Performance

Possible Causes:



Canister vent (CV) solenoid is stuck closed (partially or fully)
 
EVAP canister purge outlet tube blocked or kinked between the canister purge valve and the EVAP canister, or EVAP canister tube blocked between the fuel tank and canister
 
EVAP canister restricted, or plugged CV solenoid filter unit
 
Plugged or contaminated CV solenoid filter
 
EVAP canister purge valve stuck open
 
Fuel filler cap stuck closed (no vacuum relief)
 
FTP sensor VREF circuit open, or FTP sensor is damaged
 
Fuel vapor elbow at the EVAP canister contaminated
 

Trouble Code: P0451



Fuel Tank Pressure Sensor Intermittent Signal

Possible Causes:



FTP sensor signal circuit has an intermittent open condition
 
FTP sensor signal circuit has an intermittent shorted condition
 
FTP sensor is damaged or it has failed
 

Trouble Code: P0452



FTP Sensor Circuit Low Input

Possible Causes:



FTP sensor signal circuit is open or the ground circuit is open
 
FTP sensor signal circuit is shorted to VREF (5v)
 
FTP sensor is damaged or the PCM has failed
 

Trouble Code: P0453



FTP Sensor Circuit High Input

Possible Causes:



FTP sensor signal circuit is open or the ground circuit is open
 
FTP sensor signal circuit is shorted to VREF (5v)
 
FTP sensor is damaged or the PCM has failed
 

Trouble Code: P0454



Evaporative Emission System Pressure Sensor/Switch Intermittent

Possible Causes:



Intermittent open or short in the fuel tank pressure (FTP) sensor or the FTP sensor signal
 
Contaminated or damaged sensor
 

Trouble Code: P0455



EVAP Control System Large Leak Detected

Possible Causes:



Aftermarket EVAP hardware non-conforming to specifications
 
Canister vent (CV) solenoid stuck open
 
EVAP canister purge valve stuck closed, or canister damaged
 
EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube disconnected or cracked, or canister is damaged
 
Fuel filler cap missing, loose (not tightened) or the wrong part
 
Loose fuel vapor hose/tube connections to EVAP components
 
Purge sensor or FTP sensor is out of calibration or has failed
 

Trouble Code: P0456



EVAP Control System Very Small Leak (0.020") Detected

Possible Causes:



Canister tube, EVAP canister purge outlet tube or return tube disconnected or cracked
 
EVAP canister purge valve stuck closed, or canister damaged
 
Fuel vapor hoses/tubes that have very small holes and/or cuts
 
Fuel vapor hose/tube connections are loose or damaged
 
EVAP component seals are leaking (i.e., Purge valve, fuel tank pressure sensor, canister vent solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly)
 
TSB 03-9-8 contains a repair procedure for this trouble code
 
TSB 3-20-3 contains a repair procedure for this trouble code
 

Trouble Code: P0457



EVAP Control System Leak Detected (Fuel Cap Missing)

Possible Causes:



Fuel filler cap not installed after refueling (CMC P0457 is set)
 
Fuel filler cap missing, loose or cross-threaded
 

Trouble Code: P0460



Fuel Level Sensor Signal Range/Performance

Possible Causes:



Fuel tank is empty
 
FP module is stuck open
 
Fuel gauge is incorrectly installed
 
Instrument cluster damaged
 
PCM Case ground circuit open
 
Fuel level indicator (FLI) circuit is shorted to power, or is open
 
Fuel tank has been overfilled, or fuel gauge is damaged
 
Fuel pump (FP) module is stuck closed, or is stuck open
 
Fuel level indicator circuit shorted to Case or to power ground
 
PCM Case ground shorted to VPWR (shorted to system power)
 

Trouble Code: P0461



Fuel Level Sensor A Circuit Range/Performance

Possible Causes:



Fuel level sensor circuit intermittent
 
FLI signal line open circuit
 

Trouble Code: P0462



Fuel Level Sensor Circuit Low Input

Possible Causes:



Fuel tank is empty
 
FLI signal circuit is open
 
FLI signal circuit is shorted to case or chassis ground
 
PCM has failed
 

Trouble Code: P0463



Fuel Level Sensor Circuit High Input

Possible Causes:



Fuel level sensor connector is damaged or shorted
 
Fuel tank has been over-filled
 
FLI signal circuit is shorted to VREF (5v or 12v)
 
PCM has failed
 

Trouble Code: P0480



Fan 1 Control Circuit

Possible Causes:



Open or shorted LFC circuit
 
Open VPWR circuit to the low speed FC relay
 
Damaged low speed FC relay
 
FCV circuit open or shorted
 
B+ or ground circuit concern to cooling fan
 
VPWR open to cooling fan (if applicable)
 
Damaged cooling fan module
 
FCV circuit open in the harness
 
FCV circuit short to voltage or ground in the harness
 
Damaged cooling fan clutch solenoid
 

Trouble Code: P0481



High Fan Control (HFC)/Fan Control 3 (FC3) Primary Circuit Malfunction

Possible Causes:



Open or shorted HFC circuit
 
Open VPWR circuit to the high speed FC relay
 
Damaged high speed FC relay
 

Trouble Code: P0482



Constant Control Relay Module Circuit Malfunction

Possible Causes:



FC relay control circuit is open
 
FC relay control circuit is shorted to chassis ground
 
FC relay power supply (VPWR) circuit is open
 
FC relay direct battery (B+) circuit is open
 
PCM has failed
 

Trouble Code: P0483



Variable Fan Control (FC V) Fan Performance

Possible Causes:



Cooling fan motor mechanical concerns
 
Obstructions
 

Trouble Code: P0491



Secondary Air Injection (AIR) System Insufficient Flow (Bank 1)

Possible Causes:



Secondary AIR pump with no or low air flow
 
Secondary AIR bypass solenoid leaking/blocked or stuck open/closed
 
Secondary AIR diverter valve leaking/blocked or stuck open/closed
 
Secondary AIR air hose restricted
 
Secondary AIR vacuum hoes restricted or leaking
 

Trouble Code: P050A



Cold Start Idle Air Control Performance

Possible Causes:



IAC control circuit is open
 
IAC control circuit is shorted to power (B+)
 
IAC power supply circuit (VPWR) is open
 
IAC solenoid is damaged or the PCM has failed
 

Trouble Code: P050B



Cold Start Ignition Timing Performance

Possible Causes:



Spark timing
 
Spark capture circuit
 
Spark timing monitor
 
Spark capture circuit monitor
 

Trouble Code: P0501



Vehicle Speed Sensor or PSOM Range/Performance

Possible Causes:



VSS+ or VSS- signal circuit is open or shorted to ground
 
TCSS signal or TCSS signal return harness circuit is open
 
VSS harness circuit, TCSS harness circuit is shorted to ground
 
VSS harness circuit, CSS harness circuit is shorted to power
 
VSS circuit open between the PCM and related control module
 
VSS or TCSS, or wheel speed sensors circuits are damaged
 
Modules connected to VSC/VSS harness circuits are damaged
 
Mechanical drive mechanism for the VSS or TCSS is damaged
 

Trouble Code: P0503



Vehicle Speed Sensor Signal Intermittent

Possible Causes:



Module or circuits connected to VSS/TCSS circuit are damaged
 
VSS/TCSS wiring harness or connector is damaged or loose
 
VSS/TCSS signal is "noisy" due to RFI or EMI interference from sources such as ignition components or charging system
 
VSS/TCSS gears are damaged or there is debris on the sensor
 

Trouble Code: P0505



Idle Air Control System Malfunction

Possible Causes:



Air inlet dirty, restricted or the air cleaner is severely restricted
 
IAC solenoid control circuit is open, shorted to ground or to B+
 
IAC solenoid power circuit (VPWR) is open from the relay
 
IAC valve is damaged or has failed
 
PCM has failed
 
TSB 03-3-5 contains repair information for this trouble code
 

 
label.common.footer.alt.autozoneLogo