GrandCaravan 2008

4.0L V6 VIN X Auto 2

Print

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 (B2 S2) 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: 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 (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: P0201



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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: P0207



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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: P0208



Injector 1, 2, 3, 4, 5, 6, 7 or 8 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: 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: P0222



Throttle Position Sensor No. 2 Circuit Low

Possible Causes:



TP Sensor No. 2 signal circuit shorted to ground or open
 
TP Sensor supply circuit is open or shorted to ground
 
TP Sensor or throttle body is 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: 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 1-6 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
 

Trouble Code: P0302



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
 

Trouble Code: P0303



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
 

Trouble Code: P0304



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
 

Trouble Code: P0305



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
 

Trouble Code: P0306



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
 

Trouble Code: P0315



No Crankshaft Position Sensor Learned

Possible Causes:



Crankshaft tone wheel flex plate is damaged
 
Tone wheel/pulse ring may be damaged
 
Erratic CKP Sensor signals (wiring/connector problem)
 
CKP Sensor has failed
 
PCM has failed
 

Trouble Code: P0325



Knock Sensor No. 1 Circuit

Possible Causes:



Knock Sensor connector is damaged or shorted
 
Knock Sensor signal circuit open or grounded
 
Knock Sensor signal circuit shorted to return circuit
 
Knock Sensor return circuit is open
 
Knock Sensor not tightened properly
 
Knock Sensor damaged or has failed (it may be open internally)
 
PCM has failed
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit

Possible Causes:



Intermittent CKP signal
 
CKP Sensor signal circuit is open or it is shorted to ground or voltage
 
CKP Sensor 5v supply circuit is open or shorted to ground or voltage
 
CKP Sensor ground circuit is open
 
CKP Sensor or CMP Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0339



Crankshaft Position Sensor Circuit Intermittent

Possible Causes:



Check the tone wheel/pulse ring for damage or debris collection
 
CKP Sensor signal circuit is open or shorted to ground
 
CKP Sensor 5v supply circuit is open or shorted to ground
 
CKP Sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0340



No Camshaft Position Sensor Circuit Failure

Possible Causes:



CMP Sensor connector is damaged, open or it is shorted
 
CMP Sensor signal circuit is open or shorted to ground or to battery voltage or 5v supply circuit
 
CMP Sensor 5v supply circuit is open or shorted to ground or to battery voltage
 
CMP Sensor ground circuit is open
 
CMP Sensor is damaged or has failed
 
CKP Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0344



Camshaft Position Sensor Circuit Intermittent

Possible Causes:



Wiring harness fault
 
5v supply circuit open or shorted to ground
 
Tone wheel/pulse ring is damaged or corroded
 
CMP Sensor has failed
 
CMP Sensor signal circuit is open, shorted to ground or battery voltage or 5v supply
 
CMP Sensor ground circuit is open
 
PCM has failed
 

Trouble Code: P0401



EGR System Fault

Possible Causes:



EGR valve is open at idle
 
EGR solenoid ground circuit is open
 
EGR solenoid control circuit is open, shorted to ground or to voltage
 
ASD relay power circuit open to the EGR solenoid
 
EGR valve or solenoid is damaged or has failed
 
PCM has failed (EGR open or EGR closed)
 

Trouble Code: P0403



EGR Solenoid Circuit

Possible Causes:



EGR solenoid ground circuit is open
 
EGR solenoid control circuit is open or shorted to ground or to voltage
 
EGR solenoid power circuit is open
 
EGR solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0404



EGR Position Sensor Signal Performance

Possible Causes:



EGR Sensor signal circuit is open or shorted to ground
 
EGR Sensor 5v supply circuit is open or has high resistance
 
EGR Sensor ground circuit is open
 
EGR solenoid control circuit has a problem
 
EGR valve actuator loose, sticking, blocked or improperly grounded
 
EGR Sensor is damaged or has failed
 
Intermittent condition
 
PCM has failed
 

Trouble Code: P0405



EGR Position Sensor Circuit Low Input

Possible Causes:



EGR Sensor signal circuit is shorted to ground or open
 
EGR Sensor VREF (5v) circuit is open or shorted to ground
 
EGR Sensor is damaged (shorted internally) or it has failed
 
EGR position internal failure
 
PCM has failed
 

Trouble Code: P0406



EGR Position Sensor Circuit High Input

Possible Causes:



Intermittent condition
 
EGR Sensor signal is shorted to VREF (5v) supply circuit or to battery voltage
 
EGR Sensor ground circuit is open
 
EGR Sensor signal circuit is open
 
EGR Sensor is damaged (it may have an internal open circuit)
 
EGR solenoid failure
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks in at the exhaust manifold or exhaust pipes
 
Base engine problems (high coolant or engine oil consumption)
 
Catalytic converter damaged or has failed
 
FronT O2S1 older (aged) than the rear O2 (O2 is lazy)
 

 
label.common.footer.alt.autozoneLogo