Suzuki Vitara, Grand Vitara, XL7 2000-06

2.5L V6 VIN 6 Std 2

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Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only Cylinder 5
 
Fuel delivery component fault that affects only Cylinder 5 (i.e., 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

Possible Causes:



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

Trouble Code: P0327



Knock Sensor Circuit Low Input

Possible Causes:



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

Trouble Code: P0328



Knock Sensor Circuit High Input

Possible Causes:



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

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor connector is damaged, open or shorted
 
CKP sensor positive (+) circuit is open or shorted to ground
 
CKP sensor negative (-) circuit is open or shorted to ground
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open between sensor and PCM
 
CMP sensor signal circuit is shorted to ground
 
CMP sensor power circuit is open (check power from the relay)
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0400



EGR System Fault (Too Much Or Too EGR Little Flow)

Possible Causes:



EGR stepper motor control circuit(s) open or shorted to ground
 
EGR stepper motor assembly is damaged or has failed
 
Exhaust connection to EGR valve is clogged or restricted
 
Catalytic converter or exhaust system is clogged or restricted
 
PCM has failed
 

Trouble Code: P0401



EGR System Insufficient EGR Flow Detected

Possible Causes:



EGR passage is plugged or restricted (clean, then retest code)
 
EGR valve is plugged or damaged (may need replacement)
 
MAP sensor is out of calibration or has failed
 
PCM has failed
 

Trouble Code: P0402



EGR System Excessive EGR Flow Detected

Possible Causes:



EGR valve is sticking (open) or it is damaged (the valve may need replacement)
 
MAP sensor is out of calibration or it has failed
 
PCM has failed
 

Trouble Code: P0403



EGR Solenoid Control Circuit Malfunction

Possible Causes:



One or more EGR stepper motor circuits is open
 
One or more EGR stepper motor circuits is shorted to ground
 
EGR stepper motor power circuit is open (check the J/B fuse)
 
EGR stepper motor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (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 is older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0430



Catalyst Efficiency Below Normal (Bank 2)

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 is older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0441



EVAP System Flow During Non-Purge Conditions

Possible Causes:



Intake passage clogged between canister and intake manifold
 
EVAP charcoal canister is dirty or severely restricted
 
EVAP canister purge valve is damaged or the circuit has failed
 
PCM has failed
 

Trouble Code: P0449



EVAP Vent Control Solenoid Circuit Malfunction

Possible Causes:



Vent control solenoid connector is open or shorted to ground
 
Vent control solenoid circuit is open or shorted to ground
 
Vent control solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0451



EVAP Pressure Sensor Signal Range/Performance

Possible Causes:



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

Trouble Code: P0452



EVAP Tank Pressure Sensor Circuit Low Input

Possible Causes:



Tank pressure sensor connector is damaged or shorted
 
Tank pressure sensor circuit is shorted to ground
 
Tank pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0453



EVAP Tank Pressure Sensor Circuit High Input

Possible Causes:



Tank pressure sensor connector is damaged or loose
 
Tank pressure sensor circuit is open or shorted to VREF
 
Tank pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0455



EVAP System Large Leak (0.080") Detected

Possible Causes:



Canister vent (CV) solenoid is stuck open
 
EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube disconnected or cracked, or canister is damaged
 
EVAP canister purge valve stuck closed, or canister damaged
 
Fuel filler cap missing, loose (not tightened) or the wrong part
 
Fuel vapor hoses/tubes blocked or restricted, or fuel vapor control valve tube or fuel vapor vent valve assembly blocked
 
Fuel tank pressure (FTP) sensor has failed (mechanical fault)
 
Fuel tank control valve is contaminated, damaged or has failed
 

Trouble Code: P0461



Fuel Level Sensor Signal Range/Performance

Possible Causes:



Fuel tank empty or overfull (fuel sender is stuck mechanically)
 
Wrong fuel gauge is installed, or instrument panel is damaged
 
Fuel gauge sender unit is damaged or has failed
 
PCM has failed
 

Trouble Code: P0463



Fuel Level Sensor Circuit High Input

Possible Causes:



Fuel gauge sender unit is damaged or has failed
 
Fuel level signal circuit is open between the splice and the I/P
 
Fuel level meter is damaged or has failed
 
PCM has failed
 

Trouble Code: P0464



Fuel Level Sensor Circuit Intermittent

Possible Causes:



Combination meter is damaged or has failed
 
Fuel level signal circuit is open (Yellow, Yellow/Red or Black/Orange wire) between the splice and the I/P connector
 
Fuel level sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0496



EVAP System Flow During Non-Purge Conditions

Possible Causes:



Canister purge solenoid control circuit (Blue/Black wire) is shorted to ground
 
Fuel level sensor is damaged or has failed
 
Fuel pressure control valve is damaged or its circuit is shorted
 
Fuel pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS ground circuit is open
 
VSS signal circuit from Combo Meter open or shorted to ground
 
VSS is damaged or has failed (drive gear may be damaged)
 
PCM has failed
 
TSB TS4-23 (6/96) contains information related to this code
 

Trouble Code: P0505



Idle Speed Control System

Possible Causes:



IAC valve control circuit is open or shorted to ground
 
IAC valve power circuit is open (check power from the relay)
 
IAC valve ground circuit is open
 
IAC valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P0506



Idle Speed Control System Lower Than Expected

Possible Causes:



IAC valve control circuit is open or shorted to ground
 
IAC valve power circuit is open (intermittent fault)
 
IAC valve ground circuit is open (intermittent fault)
 
Throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

Trouble Code: P0507



Idle Speed Control System Higher Than Expected

Possible Causes:



IAC valve control circuit is open (intermittent fault)
 
IAC valve power circuit is open (intermittent fault)
 
IAC valve ground circuit is open (intermittent fault)
 
Throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

Trouble Code: P0601



PCM Memory Check Sum Error

Possible Causes:



Clear the trouble code, and recheck for the same code.
 
If this trouble code resets, the PCM must be replaced
 

Trouble Code: P1408



Manifold Absolute Pressure Sensor Signal Performance

Possible Causes:



MDP sensor signal circuit is open or shorted to ground
 
MDP sensor vacuum source in intake manifold is clogged
 
MDP sensor is damaged, out-of-calibration or has failed
 
PCM has failed
 

Trouble Code: P1410



Fuel Tank Pressure Control Solenoid Circuit Malfunction

Possible Causes:



FTP control solenoid connector is damaged, open or shorted
 
FTP control solenoid circuit is open or shorted to ground
 
FTP control solenoid power circuit is open (check the relay)
 
FTP solenoid is damaged (solenoid resistance is 28-39 ohms)
 
PCM has failed
 

Trouble Code: P1450



Barometric Pressure Sensor Circuit Malfunction

Possible Causes:



BARO sensor connector is damaged, open or shorted
 
BARO sensor signal circuit is open or shorted to ground
 
BARO sensor signal circuit shorted to VREF or system power
 
BARO sensor is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1451



Barometric Pressure Sensor Signal Range/Performance

Possible Causes:



BARO sensor connector is damaged, open or shorted
 
BARO sensor signal circuit is open or shorted to ground
 
BARO sensor signal circuit shorted to VREF or system power
 
BARO sensor is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1500



Engine Starter Signal Circuit Malfunction

Possible Causes:



Engine starter signal circuit is open or shorted to ground
 
Engine starter signal circuit is shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P1510



PCM Backup Power Supply Circuit Malfunction

Possible Causes:



Backup power supply circuit is open (check the Dome fuse)
 
Battery terminal connections may be loose or corroded
 
PCM has failed
 

 
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