Metro, Prizm 2000-2002

1.3L L4 VIN 2 Auto 1

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1.3L L4 VIN 2 Auto

Trouble Code: P0106



MAP Sensor Range/Performance

Possible Causes:



MAP sensor signal circuit to the PCM interrupted (intermittent)
 
MAP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0107



MAP Sensor Circuit Low Input

Possible Causes:



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

Trouble Code: P0108



MAP Sensor Circuit High Input

Possible Causes:



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

Trouble Code: P0111



Intake Air Temperature Sensor Range/Performance

Possible Causes:



IAT sensor signal circuit is open or shorted to ground
 
IAT sensor is contaminated, out-of-calibration or has failed
 
PCM has failed
 

Trouble Code: P0112



Intake Air Temperature Sensor Circuit Low Input

Possible Causes:



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

Trouble Code: P0113



Intake Air Temperature Sensor Circuit High Input

Possible Causes:



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

Trouble Code: P0116



Engine Coolant Temperature Sensor Range/Performance

Possible Causes:



ECT sensor signal circuit is open or shorted to ground
 
ECT sensor is contaminated, out-of-calibration or has failed
 
PCM has failed
 

Trouble Code: P0117



Engine Coolant Temperature Sensor Circuit Low Input

Possible Causes:



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

Trouble Code: P0118



Engine Coolant Temperature Sensor Circuit High Input

Possible Causes:



ECT sensor connector is damaged, loose or open
 
ECT sensor signal circuit is open between sensor and the PCM
 
ECT sensor ground circuit is open between sensor and PCM
 
ECT sensor is damaged or has failed (an internal short)
 
PCM has failed
 

Trouble Code: P0121



Throttle Position Sensor Range/Performance

Possible Causes:



MAP sensor may be out-of-calibration
 
TP sensor signal circuit is open to the PCM (intermittent fault)
 
TP sensor ground circuit is open (an intermittent fault)
 
Throttle body is damaged or throttle linkage is bent or binding
 
TP sensor is damaged or has failed
 

Trouble Code: P0122



Throttle Position Sensor Circuit Low Input

Possible Causes:



TP sensor signal circuit is shorted to ground
 
TP sensor power circuit is open (check VREF from the PCM)
 
TP sensor is damaged or failed (it may be shorted internally)
 
PCM has failed
 

Trouble Code: P0123



Throttle Position Sensor Circuit High Input

Possible Causes:



TP sensor signal circuit is open between sensor and the PCM
 
TP sensor ground circuit is open between sensor and the PCM
 
TP sensor is damaged or has failed (it may be open internally)
 
PCM has failed
 

Trouble Code: P0125



ECT Excessive Time to Enter Closed Loop

Possible Causes:



Check the operation of the thermostat (it may be stuck open)
 
ECT sensor signal circuit has high resistance
 
ECT sensor has failed
 
Inspect for low coolant level or an incorrect coolant mixture
 

Trouble Code: P0131



HO2S-11 (Bank 1 Sensor 1) Circuit Low Input

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S ground circuit is open
 
HO2S is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0132



HO2S-11 (Bank 1 Sensor 1) Circuit High Input

Possible Causes:



HO2S is contaminated, damaged or it has failed
 
HO2S signal circuit shorted to power (check the heater circuit)
 
PCM has failed
 

Trouble Code: P0133



HO2S-11 (Bank 1 Sensor 1) Slow Response

Possible Causes:



Exhaust leak present in the exhaust manifold or exhaust pipes
 
HO2S element is fuel contaminated or has deteriorated
 
PCM has failed
 

Trouble Code: P0134



HO2S-11 (Bank 1 Sensor 1) Insufficient Activity

Possible Causes:



Exhaust leak present in exhaust manifold or exhaust pipes
 
HO2S element fuel contamination or has deteriorated
 
HO2S signal circuit or the ground circuit has high resistance
 
HO2S heater element has failed, or the heater circuit is open
 
PCM has failed
 

Trouble Code: P0135



HO2S-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater control circuit is shorted to power
 
HO2S heater power circuit is open (test power to IG Coil fuse)
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0136



HO2S-12 (Bank 1 Sensor 2) Circuit Malfunction

Possible Causes:



HO2S signal circuit is open between the sensor and the PCM
 
HO2S signal circuit is shorted to sensor or chassis ground
 
HO2S signal circuit is shorted to VREF or system power (B+)
 
HO2S is damaged, contaminated or it has failed
 
PCM has failed
 

Trouble Code: P0141



HO2S-12 (Bank 1 Sensor 2) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open, shorted to ground or power
 
HO2S heater power circuit is open (check power from the fuse)
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0171



Fuel Trim System Lean (Bank 1)

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks located in front of the HO2S location
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0172



Fuel Trim System Rich (Bank 1)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Exhaust leaks located in front of the A/FS or HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAF)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0300



Multiple Engine Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault affecting 2 or more cylinders
 
Erratic or interrupted CKP or CMP sensor signals
 
Fuel delivery component fault affecting 2 or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) affecting over 2 cylinders
 

Trouble Code: P0301



Cylinder 1 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 1
 
Fuel delivery component fault that affects only Cylinder 1 (i.e., 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

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only Cylinder 2
 
Fuel delivery component fault that affects only Cylinder 2 (i.e., 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

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only Cylinder 3
 
Fuel delivery component fault that affects only Cylinder 3 (i.e., 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

Possible Causes:



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

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor connector is damaged, open or shorted
 
CKP (Magnetic) sensor signal (+) or (-) circuit is open, shorted to ground or to power
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP sensor connector is damaged, open or shorted
 
CMP (Magnetic) sensor signal (+) or (-) circuit is open, shorted to ground or to power
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst System Low Efficiency (Bank 1)

Possible Causes:



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

Trouble Code: P0440



EVAP System No Flow During Purge Detected

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
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
 
Fuel Tank pressure control solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0450



Fuel Tank Pressure Sensor Circuit Malfunction

Possible Causes:



FTP sensor circuit is open or shorted to ground
 
FTP sensor ground or power circuit is open
 
FTP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0451



Fuel Tank Pressure Sensor Range/Performance

Possible Causes:



Fuel tank pressure sensor vent hole is clogged or restricted
 
Fuel tank pressure sensor is damaged or out-of-calibration
 
PCM has failed
 

Trouble Code: P0455



EVAP System Gross Leak (0.080") Detected

Possible Causes:



Canister Purge valve is damaged, leaking or it has failed
 
Charcoal canister is loaded with fuel or moisture
 
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 pressure sensor is damaged or has failed
 
Fuel vapor line(s), fuel pipes or hoses damaged or leaking
 
PCM has failed
 

Trouble Code: P0461



Fuel Level Sensor Performance

Possible Causes:



Fuel level sensor is stuck in one position
 
Fuel level sensor is damaged or has failed
 
High resistance in the fuel level sensor ground circuit (G400)
 
Loose fuel tank baffle interfering with the fuel level sensor
 
PCM has failed
 

Trouble Code: P0463



Fuel Level Sensor Circuit High Input

Possible Causes:



Fuel level sensor circuit is shorted to VREF or system power
 
Fuel level sensor ground circuit is open
 
Fuel level sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



VSS connector is damaged, open or shorted
 
VSS signal circuit is open or shorted to ground
 
VSS is damaged or has failed (behind the Instrument Cluster)
 
PCM has failed (the PCM sends a 5v signal to the reed switch)
 

Trouble Code: P0505



Idle Speed Control System

Possible Causes:



ISC motor control circuit is open or shorted to ground or to B+
 
ISC motor power circuit is open
 
ISC motor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0506



Idle Speed Too Low

Possible Causes:



Throttle valve is dirty or sticking (it may need to be cleaned)
 
ISC motor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0507



Idle Speed Too High

Possible Causes:



Throttle valve is dirty or sticking (it may need to be cleaned)
 
IAC motor is damaged or has failed
 
PCM has failed
 

 
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