Pacifica 2006-2008

3.8L V6 VIN L Auto 3

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Trouble Code: P0141



O2 SENSOR 1/2 HEATER PERFORMANCE

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER GROUND CIRCUIT OPEN
 
O2 HEATER CONTROL CIRCUIT OPEN
 
PCM
 

Trouble Code: P0141



O2 (B1 S2) Heater Circuit

Possible Causes:



O2 heater ground circuit open or O2 signal circuit is open
 
O2 heater element has failed
 
PCM has failed
 

Trouble Code: P0151



O2 (B2 S1) Circuit Short to Ground

Possible Causes:



O2 upstream circuit is shorted to ground
 
O2 signal circuit is shorted to ground or to O2 upstream return circuit
 
O2 signal circuit is shorted to the heater ground circuit
 
O2 may be contaminated or it has failed
 
PCM has failed
 

Trouble Code: P0152



O2 (B2 S1) Circuit High

Possible Causes:



O2 signal circuit is open or is shorted to battery voltage.
 
O2 upstream return circuit is open or is shorted to battery voltage
 
O2 Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0153



O2 (B2 S1) Slow Response

Possible Causes:



Exhaust leak
 
O2 signal circuit has an open or grounded condition
 
O2 upstream return circuit has an open or grounded condition
 
O2 element is deteriorated or it has failed
 

Trouble Code: P0155



O2 (B2 S1) Heater Circuit

Possible Causes:



O2 heater control circuit is open
 
O2 heater ground circuit is open
 
O2 heater element is damaged or has failed
 
PCM has failed
 

Trouble Code: P0157



O2 (B2 S2) Circuit Low

Possible Causes:



O2 signal circuit is shorted to chassis or Sensor ground
 
O2 is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0158



O2 (B2 S2) Circuit High

Possible Causes:



O2 signal circuit is open or is shorted to battery
 
O2 downstream return circuit is open or is shorted to battery
 
O2 is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0159



O2 (B2 S2) Slow Response

Possible Causes:



Exhaust leak
 
O2 signal circuit is open or shorted
 
O2 downstream return circuit is open or shorted
 
O2 Sensor is damaged or has failed
 

Trouble Code: P0161



O2 (B1 S1) Heater Circuit

Possible Causes:



O2 heater ground circuit open or O2 signal circuit is open
 
O2 heater element or PCM has failed
 

Trouble Code: P0171



FUEL SYSTEM 1/1 LEAN

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
RESTRICTED FUEL SUPPLY LINE
 
FUEL PUMP INLET STRAINER PLUGGED
 
FUEL PUMP MODULE
 
O2 SENSOR
 
O2 SIGNAL CIRCUIT
 
O2 RETURN CIRCUIT
 
O2 SENSOR HEATER OPERATION
 
THROTTLE POSITION SENSOR SWEEP
 
MAP SENSOR OPERATION
 
ECT SENSOR OPERATION
 
ENGINE MECHANICAL PROBLEM
 
FUEL CONTAMINATION/EXHAUST LEAK
 

Trouble Code: P0171



Fuel System Lean (B1 S1)

Possible Causes:



Restricted fuel supply line
 
Fuel pump inlet strainer plugged or fuel pump has failed
 
O2 Sensor has failed
 
O2 signal circuit or return circuit has failed
 
O2 Sensor heater operation is faulty
 
TP Sensor sweep has failed
 
MAP Sensor operation has failed
 
ECT Sensor operation has failed
 
Engine mechanical problem is present
 
Fuel is contaminated
 
Exhaust leak exists
 

Trouble Code: P0172



FUEL SYSTEM 1/1 RICH

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
O2 SENSOR HEATER OPERATION
 
O2 SENSOR
 
EVAP PURGE SOLENOID OPERATION
 
O2 SIGNAL CIRCUIT
 
O2 RETURN CIRCUIT
 
MAP SENSOR OPERATION
 
ECT SENSOR OPERATION
 
ENGINE MECHANICAL PROBLEM
 
FUEL FILTER/PRESSURE REGULATOR
 
PCM
 

Trouble Code: P0172



Fuel System (S1 B1) Rich

Possible Causes:



O2 Sensor heater or O2 Sensor has failed
 
EVAP purge solenoid failed or improper operation
 
O2 signal circuit or return circuit has failed
 
MAP Sensor has failed or circuit malfunction
 
ECT Sensor has failed or circuit malfunction
 
Engine mechanical problem
 
Fuel filter/pressure regulator has failed or needs repair
 
PCM has failed
 

Trouble Code: P0174



Fuel System (S2 B1) Lean

Possible Causes:



Restricted fuel supply line
 
Fuel pump inlet strainer plugged
 
Fuel pump is damaged or has failed
 
O2 signal circuit or return circuit has failed
 
MAP Sensor has failed or circuit malfunction
 
ECT Sensor has failed or circuit malfunction
 
Engine mechanical problem
 
Fuel filter/pressure regulator has failed or needs repair
 
O2 Sensor has failed
 
PCM has failed
 

Trouble Code: P0175



Fuel System (S2 B1) Rich

Possible Causes:



Restricted fuel supply line
 
Fuel pump inlet strainer plugged
 
Fuel pump is damaged or has failed
 
O2 signal circuit or return circuit has failed
 
MAP Sensor has failed or circuit malfunction
 
ECT Sensor has failed or circuit malfunction
 
Engine mechanical problem
 
Fuel filter/pressure regulator has failed or needs repair
 
O2 Sensor has failed
 
PCM has failed
 

Trouble Code: P0196



Engine Oil Temperature Sensor Circuit Performance

Possible Causes:



Engine oil temp signal circuit is open or is shorted to ground or to battery voltage
 
Engine oil temp Sensor ground circuit is open
 
Engine oil temp signal circuit is shorted to Sensor ground
 
Engine oil temp Sensor has failed
 
PCM has failed
 

Trouble Code: P0197



Engine Oil Temperature Sensor Circuit Low

Possible Causes:



Engine oil temp signal circuit is shorted to ground
 
Engine oil temp signal circuit is shorted to Sensor ground
 
Engine oil temp Sensor has failed
 
PCM has failed
 

Trouble Code: P0198



Engine Oil Temperature Sensor Circuit High

Possible Causes:



Engine oil temp signal circuit is open or is shorted to battery voltage
 
Engine oil temp Sensor ground circuit is open
 
Engine oil temp Sensor has failed
 
PCM has failed
 

Trouble Code: P0201



FUEL INJECTOR #1

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0201



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0202



FUEL INJECTOR #2

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0202



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0203



FUEL INJECTOR #3

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0203



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0204



FUEL INJECTOR #4

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0204



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0205



FUEL INJECTOR #5

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0205



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0206



FUEL INJECTOR #6

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F42) ASD RELAY OUTPUT CIRCUIT
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT OPEN
 
INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0206



Injector 1, 2, 3, 4, 5, or 6 Control

Possible Causes:



ASD relay output circuit failure
 
Fuel injector has malfunctioned or failed
 
Fuel injector control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P0218



HIGH TEMPERATURE OPERATION ACTIVATED

Possible Causes:



ENGINE COOLING SYSTEM MALFUNCTION
 
TRANSMISSION OIL COOLER PLUGGED
 
HIGH TEMPERATURE OPERATIONS ACTIVATED
 

Trouble Code: P0218



A/T High Temperature Operation Activated

Possible Causes:



Engine cooling system malfunction present
 
High temperature operations activated
 
Transmission oil pump flow is too low or it is restricted
 

Trouble Code: P0221



Throttle Position Sensor No. 2 Performance

Possible Causes:



TP Sensor No. 1 or 2 signal circuit is shorted to battery voltage or to ground
 
TP Sensor No. 1 or 2 signal circuit has high resistance
 
5V supply circuit is shorted to ground
 
TP Sensor return circuit has high resistance
 
TP Sensor No. 1 signal circuit shorted to TP Sensor No. 2 signal circuit
 
TP Sensor or throttle body damaged or has failed
 
PCM has failed
 

Trouble Code: P0223



Throttle Position Sensor No. 2 Circuit High

Possible Causes:



TP Sensor No. 2 signal circuit shorted to battery voltage or to 5V supply circuit
 
TP Sensor return circuit is open
 
TP Sensor or throttle body is damaged or has failed
 
PCM has failed
 

Trouble Code: P0243



Wastegate Solenoid Circuit Malfunction

Possible Causes:



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

Trouble Code: P0300



MULTIPLE CYLINDER MISFIRE

Possible Causes:



INTERMITTENT MISFIRE
 
VISUAL AND PHYSICAL INSPECTION
 
IGNITION WIRE
 
ASD RELAY OUPUT CIRCUIT (COIL)
 
ENGINE MECHANICAL PROBLEM
 
IGNITION COIL
 
COIL CONTROL CIRCUIT
 
SPARK PLUG
 
CHECKING FUEL PRESSURE
 
FUEL PUMP INLET STRAINER PLUGGED
 
RESTRICTED FUEL SUPPLY LINE
 
FUEL PUMP MODULE
 
CHECKING FUEL LEAK DOWN
 
FUEL INJECTOR OPERATION
 
ASD RELAY OUTPUT CIRCUIT (INJECTOR)
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT
 
PCM (IGNITION SYSTEM)
 
PCM
 

Trouble Code: P0300



Multiple Cylinder Misfire

Possible Causes:



ASD relay output circuit fault
 
Injector control circuit fault
 
Coil control circuit fault
 
Ignition wiring, coil control circuit or coil fault
 
Fuel pump inlet strainer plugged
 
Restricted fuel supply line
 
Fuel pump module is damaged
 
Fuel pressure leakdown fault
 
Fuel injector damaged or has failed
 
Engine mechanical problems exist
 
PCM has failed
 

Trouble Code: P0301



CYLINDER #1 MISFIRE

Possible Causes:



INTERMITTENT MISFIRE
 
VISUAL AND PHYSICAL INSPECTION
 
IGNITION WIRE
 
ASD RELAY OUPUT CIRCUIT (COIL)
 
ENGINE MECHANICAL PROBLEM
 
IGNITION COIL
 
COIL CONTROL CIRCUIT
 
SPARK PLUG
 
CHECKING FUEL PRESSURE
 
FUEL PUMP INLET STRAINER PLUGGED
 
RESTRICTED FUEL SUPPLY LINE
 
FUEL PUMP MODULE
 
CHECKING FUEL LEAK DOWN
 
FUEL INJECTOR OPERATION
 
ASD RELAY OUTPUT CIRCUIT (INJECTOR)
 
FUEL INJECTOR
 
INJECTOR CONTROL CIRCUIT
 
PCM (IGNITION SYSTEM)
 
PCM
 

Trouble Code: P0301



Cylinder 1-6 Misfire Detected

Possible Causes:



Intermittent misfire
 
Base engine mechanical fault that affects only 1 cylinder
 
Ignition wiring, coil control circuit or coil fault
 
ASD relay output circuit (coil or injector) problem
 
Spark plug malfunction or failure on 1 cylinder
 
CMP Sensor, Sensor wiring harness or tone wheel is damaged
 
Fuel delivery component fault that affects only 1 cylinder (e.g., a dirty fuel injector)
 
Injector or control circuit failure
 
PCM has failed
 

 
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