Mazda Tribute 2001-06

2.3L L4 VIN D Std 2

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Trouble Code: P0152



HO2S-21 (Bank 2 Sensor 1) Circuit Malfunction

Possible Causes:



HO2S is water or fuel contaminated
 
HO2S is damaged or has failed
 
PCM has failed
 

Trouble Code: P0153



HO2S-21 (Bank 2 Sensor 1) Circuit Slow Response

Possible Causes:



Air leaks in the intake manifold or exhaust manifold or pipes
 
IAT sensor or MAF sensor has deteriorated (out of calibration)
 
HO2S signal circuit is open or shorted to ground (intermittent)
 
HO2S contaminated with wrong fuel, has deteriorated or failed
 

Trouble Code: P0155



HO2S-21 (B2 S1) Heater Circuit Conditions

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater control circuit is shorted to system power (B+)
 
HO2S heater power circuit open between the heater and PCM
 
HO2S heater is damaged or has failed
 
PCM has failed (it controls the heater with a duty cycle signal)
 

Trouble Code: P0156



HO2S-22 (Bank 2 Sensor 2) Circuit High Input

Possible Causes:



Air leaks at the exhaust manifold or exhaust pipes
 
HO2S signal tracking (wet/oily) in connector causing a short between the signal circuit and heater power circuit
 
HO2S contaminated with wrong fuel, has deteriorated or failed
 
PCM has failed
 

Trouble Code: P0158



HO2S-22 (Bank 2 Sensor 2) Circuit High Input

Possible Causes:



Air leaks at the exhaust manifold or exhaust pipes
 
HO2S signal tracking (wet/oily) in connector causing a short between the signal circuit and heater power circuit
 
HO2S contaminated with wrong fuel, has deteriorated or failed
 
PCM has failed
 

Trouble Code: P0161



HO2S-22 (Bank 2 Sensor 2) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater control circuit is shorted to system power (B+)
 
HO2S heater power circuit open between the heater and PCM
 
HO2S heater is damaged or has failed
 
PCM has failed (it controls the heater with a duty cycle signal)
 

Trouble Code: P0172



Adaptive Fuel Trim Too 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 before or near where the front HO2S is mounted
 
Fuel control sensor out of calibration (i.e., IAT, MAP or MAF)
 
Fuel injectors (one or more) sticking or leaking fuel
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0174



Adaptive Fuel Trim Too Lean (Bank 1)

Possible Causes:



Air leaks after the MAF sensor, or in the PCV or EGR system
 
Base engine -mechanical- fault affecting one or more cylinders
 
Exhaust leaks before or near where the front HO2S is mounted
 
Fuel control sensor out of calibration (i.e., ECT, IAT or MAF)
 
Fuel delivery system supplying too little fuel at idle or cruise
 
Fuel Injectors (one or more) is dirty, restricted or leaking fuel
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or driven until it ran out of fuel
 

Trouble Code: P0175



Adaptive Fuel Trim Too Rich (Bank 2)

Possible Causes:



One or more injectors leaking or pressure regulator is leaking
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Exhaust leaks before or near where the front HO2S is mounted
 
HO2S is contaminated, deteriorated or it has failed
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Base engine -mechanical- fault affecting one or more cylinders
 

Trouble Code: P0171



Adaptive Fuel Trim Too Lean (Bank 1)

Possible Causes:



Vehicle driven low on fuel or until it ran out of fuel
 
One or more injectors restricted or pressure regulator has failed
 
Fuel delivery system supplying too much or too little fuel during cruise or idle periods (e.g., faulty fuel pump, or dirty fuel filter)
 
Air leaks after the MAF sensor, or air leaks in the PCV system
 
Air leaks at the EGR gasket, or at the EGR valve diaphragm
 
Exhaust leaks before or near where the front HO2S is mounted
 
HO2S is contaminated, deteriorated or it has failed
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Base engine -mechanical- fault affecting one or more cylinders
 

Trouble Code: P0172



Adaptive Fuel Trim Too Rich (Bank 1)

Possible Causes:



One or more injectors leaking or pressure regulator is leaking
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Exhaust leaks before or near where the front HO2S is mounted
 
HO2S is contaminated, deteriorated or it has failed
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Base engine -mechanical- fault affecting one or more cylinders
 

Trouble Code: P0174



Adaptive Fuel Trim Too Lean (Bank 2)

Possible Causes:



Vehicle driven low on fuel or until it ran out of fuel
 
One or more injectors restricted or pressure regulator has failed
 
Fuel delivery system supplying too much or too little fuel during cruise or idle periods (e.g., faulty fuel pump, or dirty fuel filter)
 
Air leaks after the MAF sensor, or air leaks in the PCV system
 
Air leaks at the EGR gasket, or at the EGR valve diaphragm
 
Exhaust leaks before or near where the front HO2S is mounted
 
HO2S is contaminated, deteriorated or it has failed
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Base engine -mechanical- fault affecting one or more cylinders
 

Trouble Code: P0201



Fuel Injector 1 Control Circuit Malfunction

Possible Causes:



Fuel injector 1 control circuit is open or grounded
 
Fuel injector 1 power circuit open between injector and VPWR
 
Fuel injector 1 has failed
 
PCM has failed (i.e., the PCM driver for Injector 1 has failed)
 

Trouble Code: P0202



Fuel Injector 2 Control Circuit Malfunction

Possible Causes:



Fuel injector 2 control circuit is open or grounded
 
Fuel injector 2 power circuit open between injector and VPWR
 
Fuel injector 2 has failed
 
PCM has failed (i.e., the PCM driver for Injector 2 has failed)
 

Trouble Code: P0203



Fuel Injector 3 Control Circuit Malfunction

Possible Causes:



Fuel injector 3 control circuit is open or grounded
 
Fuel injector 3 power circuit open between injector and VPWR
 
Fuel injector 3 has failed
 
PCM has failed (i.e., the PCM driver for Injector 3 has failed)
 

Trouble Code: P0204



Fuel Injector 4 Control Circuit Malfunction

Possible Causes:



Fuel injector 4 control circuit is open or grounded
 
Fuel injector 4 power circuit open between injector and VPWR
 
Fuel injector 4 has failed
 
PCM has failed (i.e., the PCM driver for Injector 4 has failed)
 

Trouble Code: P0219



PCM - Engine RPM Limiter, PCM software

Possible Causes:



TP Sensor malfunction
 
Connector or Terminal Malfunction
 
Open circuit between throttle body terminal A and PCM terminal 3M
 
Open circuit between throttle body terminal E and PCM terminal 3N
 

Trouble Code: P0230



Fuel Pump Primary or Secondary Circuit Malfunction

Possible Causes:



Fuel pump primary circuit is open or shorted to ground
 
Fuel pump primary circuit is shorted to system power (VREF)
 
Fuel pump relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P0231



Fuel Pump Primary Circuit or Secondary Malfunction

Possible Causes:



Fuel pump feed circuit open between feed circuit and the pump
 
Fuel pump relay contacts -open- that provide B+ to the pump
 
FP PWR circuit open between relay and connection to the FPM
 
Fuel pump relay is damaged or has failed
 
PCM has failed (the engine will not start if the PCM circuit fails)
 

Trouble Code: P0232



Fuel Pump Primary Circuit or Secondary Malfunction

Possible Causes:



Inertia switch needs resetting or its internal contacts are open
 
Fuel pump circuit open between the FPM connection and the FP PWWR circuit
 
Fuel pump ground circuit is open or has high resistance
 
Fuel pump relay is damaged or has failed
 
PCM has failed (the engine will not start and run)
 
Possible Causes (Engine Starts Condition)
 
Fuel pump secondary circuit is shorted to system power (B+)
 
Fuel pump relay contacts closed all of the time
 
Fuel pump circuit open between the PCM connection and the FP PWR circuit
 
PCM has failed (the engine will start and run)
 

Trouble Code: P0298



Engine Oil Over Temperature Condition

Possible Causes:



Overheating condition
 
Basic engine concerns
 
Engine cooling concerns
 
Open circuit or short in ECT harness
 
PCM has failed
 

Trouble Code: P0300



Random Misfire Detected

Possible Causes:



Base engine mechanical fault affecting one or more cylinders
 
CMP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects more than one cylinder
 
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 that affects more than one cylinder
 
MAF sensor is contaminated (this can cause a lean condition)
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



Base engine mechanical fault affecting only Cylinder 1
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects only Cylinder 1
 
Ignition system fault that affects only Cylinder 1
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Base engine mechanical fault affecting only Cylinder 2
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects only Cylinder 2
 
Ignition system fault that affects only Cylinder 2
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



Base engine mechanical fault affecting only Cylinder 3
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects only Cylinder 3
 
Ignition system fault that affects only Cylinder 3
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



Base engine mechanical fault affecting only Cylinder 4
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects only Cylinder 4
 
Ignition system fault that affects only Cylinder 4
 

Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



Base engine mechanical fault affecting only Cylinder 5
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects only Cylinder 5
 
Ignition system fault that affects only Cylinder 5
 

Trouble Code: P0300



Multiple Misfire Detected

Possible Causes:



Base engine mechanical fault affecting one or more cylinders
 
CMP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault that affects more than one cylinder
 
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 that affects more than one cylinder
 
MAF sensor is contaminated (this can cause a lean condition)
 

Trouble Code: P0315



Misfire Detected

Possible Causes:



Base engine mechanical fault
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault
 
Ignition system fault
 

Trouble Code: P0316



Misfire Detected

Possible Causes:



Base engine mechanical fault
 
CKP sensor is damaged or failed (problem may be intermittent)
 
Fuel metering fault
 
Ignition system fault
 

Trouble Code: P0320



Ignition Engine Speed (PIP) Signal Error

Possible Causes:



Engine speed or PIP signal circuit is open (an intermittent fault)
 
Engine speed signal circuit shorted to ground (intermittent)
 
Ignition system components arcing (ignition coils or wires)
 
Vehicle onboard transmitter interruption (i.e., 2-way radio)
 

Trouble Code: P0325



Knock Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P0326



Knock Sensor Circuit Range/Performance

Possible Causes:



Knock sensor signal circuit is open (intermittent fault)
 
Knock sensor signal circuit shorted to ground (intermittent fault)
 
Knock sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0330



Knock Sensor Circuit Malfunction

Possible Causes:



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

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal is open or shorted to ground
 
CKP sensor signal is shorted to VREF or system power (B+)
 
CKP sensor is damaged or has failed
 
Trigger wheel or tone wheel is damaged
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal is open or shorted to ground
 
CMP sensor signal is shorted to VREF or system power (B+)
 
CMP sensor is damaged, or the sensor signal shielding is open
 
PCM has failed
 

Trouble Code: P0350



Ignition Coil Primary Circuit Malfunction

Possible Causes:



Ignition coil primary circuit is open or shorted to ground
 
Ignition coil primary circuit is shorted to system power (B+)
 
Ignition coil power circuit is open between coil and Start circuit
 
PCM has failed
 

Trouble Code: P0351



Ignition Coil 1 Primary Circuit Malfunction

Possible Causes:



Ignition coil primary circuit is open, shorted to ground or power
 
Ignition coil power circuit is open between coil and Start circuit
 
Ignition coil has failed (arcing between primary and secondary)
 
PCM has failed
 

Trouble Code: P0352



Ignition Coil 2 Primary Circuit Malfunction

Possible Causes:



Ignition coil primary circuit is open, shorted to ground or power
 
Ignition coil power circuit is open between coil and Start circuit
 
Ignition coil has failed (arcing between primary and secondary)
 
PCM has failed
 

Trouble Code: P0353



Ignition Coil 3 Primary Circuit Malfunction

Possible Causes:



Ignition coil primary circuit is open, shorted to ground or power
 
Ignition coil power circuit is open between coil and Start circuit
 
Ignition coil has failed (arcing between primary and secondary)
 
PCM has failed
 

 
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