Continental 2000-2002

4.6L V8 VIN V Auto 2

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Trouble Code: P0203



Cylinder 3 Injector Circuit Malfunction

Possible Causes:



Injector 3 connector is damaged, open or shorted
 
Injector 3 control circuit is open, shorted to ground or to power
 
PCM has failed (the injector driver circuit may be damaged)
 

Trouble Code: P0204



Cylinder 4 Injector Circuit Malfunction

Possible Causes:



Injector 4 connector is damaged, open or shorted
 
Injector 4 control circuit is open, shorted to ground or to power
 
PCM has failed (the injector driver circuit may be damaged)
 

Trouble Code: P0230



Fuel Pump Primary Circuit Malfunction

Possible Causes:



FP or FSV circuit is open or shorted
 
Fuel pump relay VPWR circuit open
 
Fuel pump relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P0231



Fuel Pump Primary Circuit Low Input

Possible Causes:



FP or FSV circuit is open or shorted to ground
 
Fuel pump relay VPWR circuit open or fuel pump relay failed
 
PCM has failed
 

Trouble Code: P0232



Fuel Pump Secondary Circuit High Input

Possible Causes:



Fuel pump relay contacts always closed
 
Fuel pump ground circuit has high resistance
 
Fuel pump secondary circuit is shorted to power
 
Low speed fuel pump relay damaged or related circuit problem
 

Trouble Code: P0300



Random Misfire Detected

Possible Causes:



Base engine mechanical fault that affects two or more cylinders
 
Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plug) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P0301



Cylinder Number 1 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 1
 
Fuel delivery component problem that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 1
 

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: P0320



Ignition Engine Speed Input Circuit Malfunction

Possible Causes:



Inspect for problems with an Aftermarket 2-way radio
 
Inspect for signs of "arcing" at one or more of the ignition coils
 
Inspect the Profile Ignition Pickup (PIP) unit inside distributor (check for damage or corrosion at the PIP sensor connector)
 
PIP sensor is damaged or it has failed (distributor models)
 
Ignition control module (ICM) has failed (Distributorless models)
 

Trouble Code: P0325



Knock Sensor 1 Circuit Malfunction

Possible Causes:



Knock sensor circuit is open
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0326



Knock Sensor 1 Signal Range/Performance

Possible Causes:



Knock sensor circuit is open
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0330



Knock Sensor 2 Circuit Malfunction

Possible Causes:



Knock sensor circuit is open
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0331



Knock Sensor 2 Signal Range/Performance

Possible Causes:



Knock sensor circuit is open
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

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: P0400



Exhaust Gas Recirculation (EGR) Flow

Possible Causes:



EEGR valve stuck open or closed
 
Connector to EEGR not seated
 
EEGR motor winding circuits short or open
 
No voltage to the EEGR
 
Harness open or shorted to voltage or ground
 
Vacuum signal to manifold absolute pressure (MAP) restricted or leaking
 
Mass Air Flow (MAF) sensor signal erroneous
 
Carbon build up in the EEGR valve seat area
 
One or more sensors is not responding or is out of range
 

Trouble Code: P0401



Insufficient EGR Flow Detected

Possible Causes:



DPFE sensor signal circuit is shorted to ground
 
DPFE sensor VREF circuit is open between sensor and PCM
 
DPFE sensor downstream hose off or plugged
 
DPFE sensor hoses both off, loose or damaged
 
DPFE sensor hoses connected wrong (reversed)
 
EGR orifice tube is damaged or restricted
 

Trouble Code: P0402



Excessive EGR Flow Detected

Possible Causes:



DPFE EGR valve source hoses loose or connected wrong
 
DPFE sensor slow to respond or sluggish (it may have failed)
 
DPFE sensor signal circuit is open or shorted to ground
 
DPFE EGR sensor is damaged or the PCM has failed
 

Trouble Code: P0411



Secondary AIR System Incorrect Upstream Flow Detected

Possible Causes:



Air pump output is blocked
 
AIR bypass solenoid leaking or blocked
 
AIR bypass solenoid is stuck open or stuck closed
 
Air injection pump hose(s) leaking
 
PCM has failed
 

Trouble Code: P0412



Secondary Air Injection Solenoid Circuit Malfunction

Possible Causes:



AIR solenoid power circuit (B+) is open (check dedicated fuse)
 
AIR bypass solenoid control circuit is open or shorted to ground
 
AIR diverter solenoid control circuit open or shorted to ground
 
AIR pump control circuit is open or shorted to ground
 
Check valve (one or more) is damaged or leaking
 
Solid State relay is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst System Efficiency Bank 1 Below Threshold

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or it has failed
 
ECT/CHT sensor has lost its calibration (the signal is incorrect)
 
Engine cylinders misfiring, or the ignition timing is over retarded
 
Engine oil is contaminated
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
 
Fuel system pressure is too high (check the pressure regulator)
 
Rear HO2S wires improperly connected or the HO2S has failed
 

Trouble Code: P0430



Catalyst System Efficiency Bank 2 Below Threshold

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or it has failed
 
ECT/CHT sensor has lost its calibration (the signal is incorrect)
 
Engine cylinders misfiring, or the ignition timing is over retarded
 
Engine oil is contaminated
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
 
Fuel system pressure is too high (check the pressure regulator)
 
Rear HO2S wires improperly connected or the HO2S has failed
 

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: 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: 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: P0500



Vehicle Speed Sensor Malfunction

Possible Causes:



Modules connected to VSC/VSS harness circuits are damaged
 
Mechanical drive mechanism for the VSS or TCSS is damaged
 
VSS+ or VSS- harness circuit is open
 
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
 

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 noise 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
 

Trouble Code: P0528



Fan Speed Sensor Circuit No Signal

Possible Causes:



FSS VPWR circuit open in the harness
 
FSS PWRGND circuit open in the harness
 
FSS circuit open in the harness
 
FSS circuit short to voltage or ground in the harness
 
Damaged FSS sensor
 
Damaged PCM
 

Trouble Code: P0552



Power Steering Pressure Sensor Circuit Low Input

Possible Causes:



PSP sensor signal circuit is shorted to sensor ground
 
PSP sensor signal circuit is shorted to chassis ground
 
PSP sensor VREF (5v) circuit is open
 
PSP sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0553



Power Steering Pressure Sensor Circuit High Input

Possible Causes:



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

Trouble Code: P0603



PCM Keep Alive Memory Test Error

Possible Causes:



Battery terminal corrosion, or loose battery connection
 
KAPWR to PCM interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
PCM has failed and needs replacement. Remember to check for Aftermarket Performance Products before replacing a PCM.
 

Trouble Code: P0605



PCM Read Only Memory Test Error

Possible Causes:



An attempt was made to change the module calibration, or a Module programming error may have occurred
 
Clear the trouble codes and then check for this trouble code. If it resets, the PCM has failed and needs replacement.
 
Remember to check for signs of Aftermarket Performance Products installation before replacing the PCM.
 

Trouble Code: P0703



Brake Switch Circuit Malfunction

Possible Causes:



BPP switch circuit is open
 
BPP switch is damaged or it is out of adjustment
 
BPP switch power circuit is open (check the switch inline fuse)
 

 
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