Mitsubishi Car 1999-05

2.0L L4 VIN Y Std 2

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Trouble Code: P0351



Ignition Coil 1 Primary Circuit Malfunction

Possible Causes:



Ignition Coil 1 primary circuit is open or shorted to ground
 
Ignition Coil 1 power circuit is open (test power from the relay)
 
Ignition Coil 1 is damaged or has failed
 
PCM has failed
 

Trouble Code: P0352



Ignition Coil 2 Primary Circuit Malfunction

Possible Causes:



Ignition Coil 2 primary circuit is open or shorted to ground
 
Ignition Coil 2 power circuit is open (test power from the relay)
 
Ignition Coil 2 is damaged or has failed
 
PCM has failed
 

Trouble Code: P0400



Exhaust Gas Recirculation System Flow Malfunction

Possible Causes:



EGR valve source vacuum supply line is open or restricted
 
EGR exhaust tube is clogged or restricted
 
EGR valve assembly is damaged or has failed
 
PCM has failed
 

Trouble Code: P0401



Insufficient EGR Flow Detected

Possible Causes:



EGR valve source vacuum supply line is open or restricted
 
EGR exhaust tube is clogged or restricted
 
EGR valve assembly is damaged or has failed
 
PCM has failed
 

Trouble Code: P0403



EGR Control Solenoid Circuit Malfunction

Possible Causes:



EGR solenoid control circuit is open or shorted to ground
 
EGR solenoid power circuit is open (check power from relay)
 
EGR solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst System Efficiency Low (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or has failed
 
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 older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0422



Warmup Catalyst Efficiency Low (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or has failed
 
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 older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0440



EVAP Control System Malfunction

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
ECT, IAT, MAF, VSS or TP sensor signal is out-of-calibration
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank pressure sensor is damaged or has failed
 
Fuel tank vapor line(s) blocked, damaged or disconnected
 
Purge Control solenoid valve circuit open or shorted to ground
 
PCM has failed
 

Trouble Code: P0441



EVAP Purge Flow System Malfunction

Possible Causes:



Charcoal canister is damaged, clogged or restricted
 
Purge solenoid circuit is open (fault may be intermittent)
 
Purge solenoid power circuit is open (check the relay or fuse)
 
Purge valve vacuum line is clogged, restricted or disconnected
 
PCM has failed
 
TSB 1-13-004 (6/01) contains information related to this code
 

Trouble Code: P0442



EVAP Control System Small Leak Detected

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
Canister Vent valve is damaged, leaking or it has failed
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank is cracked (leaking), or a leak exists in the 'O' ring
 
Fuel tank filler tube assembly is damaged or leaking
 
Fuel vapor line(s), fuel pipes or hoses damaged or leaking
 
PCM has failed
 

Trouble Code: P0443



EVAP Purge Control Solenoid Circuit Malfunction

Possible Causes:



EVAP purge solenoid circuit is open or shorted to ground
 
EVAP purge solenoid power circuit is open (test from the relay)
 
EVAP purge control solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0446



EVAP Vent Control Solenoid Circuit Malfunction

Possible Causes:



Vent Control solenoid circuit is open or shorted to ground
 
Vent Control solenoid power circuit is open (test from the relay)
 
Vent Control solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0450



Fuel Tank Pressure Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P0455



EVAP Control System Very Large Leak (0.080") Detected

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
Canister Purge solenoid is damaged, leaking or has failed
 
Canister Vent solenoid is damaged, leaking or it has failed
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MDP)
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank differential pressure sensor is damaged or has failed
 
Fuel tank is cracked (leaking), or a leak exists in the 'O' ring
 
Fuel tank filler tube assembly is damaged or restricted
 
Fuel vapor line(s), fuel pipes or hoses clogged or restricted
 
PCM has failed
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



Speedometer pinion is damaged or has failed
 
VSS signal circuit is open or shorted to ground
 
VSS power circuit is open (check for 9v VREF input from PCM)
 
VSS ground circuit is open between sensor and chassis ground
 
VSS is damaged or has failed
 
PCM has failed (the PCM provides 5v on the VSS signal circuit)
 

Trouble Code: P0505



Idle Air Control Motor Circuit Malfunction

Possible Causes:



Stepper motor Coil A1 or A2 circuit is open or shorted to ground
 
Stepper motor Coil B1 or B2 circuit is open or shorted to ground
 
Stepper motor coil circuit(s) shorted to system power (B+)
 
Stepper motor power circuit is open (check power at MFI relay)
 
Stepper motor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0510



Closed Throttle Position Switch Circuit Malfunction

Possible Causes:



Closed throttle position switch signal circuit is open or grounded
 
Closed throttle position switch signal circuit is shorted to power
 
Closed throttle position switch or TP sensor damaged or failed
 
PCM has failed
 

Trouble Code: P0551



Power Steering Pressure Switch Circuit Malfunction

Possible Causes:



Power steering pressure switch signal circuit is open
 
Power steering pressure switch signal circuit shorted to ground
 
Power steering pressure switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0600



PCM SPI Communications Error

Possible Causes:



Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
 

Trouble Code: P0601



PCM Internal Controller Malfunction

Possible Causes:



Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
 

Trouble Code: P0605



PCM Internal Controller Malfunction

Possible Causes:



Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
 

Trouble Code: P0740



A/T Lockup Control Out-Of-Range Malfunction

Possible Causes:



Transmission fluid is contaminated, or the fluid level is too low
 
Worn pump bushing and/or the TCC is damaged or has failed
 
Valve body lockup accumulator diameter is out of specification
 

Trouble Code: P1294



Target Idle Speed Not Reached

Possible Causes:



IAC motor circuit is open or shorted to ground (intermittent)
 
IAC motor is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1295



TP Sensor 5-Volt Supply Circuit Malfunction

Possible Causes:



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

Trouble Code: P1296



MAP Sensor 5-Volt Supply Circuit Malfunction

Possible Causes:



MAP sensor 5-volt supply (VREF) circuit is open
 
MAP sensor signal circuit is shorted to ground (intermittent)
 
MAP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1297



No Change In MAP From Start to Run

Possible Causes:



MAP sensor vacuum line is clogged or it contains moisture/ice
 
MAP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1390



Timing Belt Skipped One Tooth or More

Possible Causes:



Improperly installed timing belt or crankshaft position sensor
 
Improperly installed CMP or CKP sensor, or loose connector
 
Camshaft position has not be "learned" following servicing of the camshaft, camshaft sprocket, timing belt or its tensioner, cylinder head or gasket, crankshaft or crankshaft sprocket
 
PCM has been replaced
 

Trouble Code: P1391



Intermittent Loss of CKP or CMP Sensor Signal

Possible Causes:



CKP or CMP sensor improperly installed or sensor is damaged
 
CMP sensor signal circuit is open (an intermittent fault)
 
CKP sensor signal circuit is open (an intermittent fault)
 
Camshaft position sensor connector loose or damaged
 
Crankshaft position sensor connector loose or damaged
 

Trouble Code: P1398



Misfire Adaptive Numerator at Limit

Possible Causes:



Base engine problem in one or more engine cylinders
 
CKP sensor improperly installed or the sensor has failed
 
CKP sensor crankshaft target variation is present
 
Crankshaft bearings are severely worn
 
CKP sensor wiring harness or connectors loose or open circuit
 
PCM has failed
 

Trouble Code: P1486



EVAP Leak Monitor Pinched Hose Detected

Possible Causes:



Vapor lines are clogged or restricted between the EVAP vent solenoid and the fuel tank
 
Canister Vent solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1487



High Speed Condenser Fan Relay Circuit Malfunction

Possible Causes:



Condenser fan relay control circuit is open or shorted to ground
 
Condenser fan relay power circuit is open (test power at switch)
 
Condenser fan relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1490



Low Speed Fan Relay Circuit Malfunction

Possible Causes:



Low speed fan relay circuit is open or shorted to ground
 
Low speed fan relay power circuit is open (test power at switch)
 
Low speed fan relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1492



Battery Temperature Sensor High Signal

Possible Causes:



BTS signal circuit is open
 
BTS signal circuit is shorted to VREF
 
BTS is damaged or has failed
 
PCM has failed
 

Trouble Code: P1493



Battery Temperature Sensor Low Signal

Possible Causes:



BTS signal circuit is shorted to ground
 
BTS is damaged or has failed
 
PCM has failed
 

Trouble Code: P1494



EVAP Ventilation Switch Circuit Malfunction

Possible Causes:



Ventilation switch signal circuit is open or shorted to ground
 
Ventilation switch ground circuit is open
 
Ventilation switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1495



EVAP Ventilation Solenoid Circuit Malfunction

Possible Causes:



Ventilation solenoid control circuit is open or shorted to ground
 
Ventilation solenoid control circuit is shorted to system power
 
Ventilation solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1496



5-Volt Supply Output Too Low

Possible Causes:



5-volt supply (VREF) circuit is shorted to ground (intermittent)
 
PCM has failed
 

Trouble Code: P1500



Generator 'FR' Terminal Circuit Malfunction

Possible Causes:



Generator "FR" circuit is open between Generator and the PCM
 
Generator is damaged or has failed
 
PCM has failed
 

Trouble Code: P1696



PCM EEPROM Write Denied

Possible Causes:



Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
 

Trouble Code: P1697



PCM Malfunction - SRI Miles Not Stored

Possible Causes:



Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
 

 
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