Ram 1500, 2500, 3500, 2WD and 4WD, 2001-2005

5.2L V8 VIN Y Std 2

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Trouble Code: P0172



Fuel System Rich (Bank 1)

Possible Causes:



Base engine fault (i.e., cam timing incorrect, oil level too high)
 
EVAP vapor recovery system failure (e.g., canister full of fuel)
 
Fuel control Sensor is out of calibration (e.g., ECT, IAT or MAP)
 
Fuel delivery component fault (injector leak, high fuel pressure)
 
O2 element is contaminated, deteriorated or it has failed
 
O2 heater is damaged or it has failed
 

Trouble Code: P0174



Fuel System Lean (Bank 2)

Possible Causes:



Air leaks in intake manifold, exhaust pipes or exhaust manifold
 
Base engine mechanical problem causing a lean A/F condition
 
Fuel control Sensor is out of calibration (e.g., ECT, IAT or MAP)
 
Fuel delivery component fault (clogged filter, low fuel pressure)
 
O2 element is contaminated, deteriorated or it has failed
 
Vacuum hose is disconnected, broken, leaking or loose
 

Trouble Code: P0175



Fuel System Rich (Bank 2)

Possible Causes:



Base engine fault (i.e., cam timing incorrect, oil level too high)
 
EVAP vapor recovery system has failed (canister full of fuel)
 
Fuel injector (one or more) leaking or pressure regulator leaking
 
O2 element is deteriorated or has failed
 

Trouble Code: P0201



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0202



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0203



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0204



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0205



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0206



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0207



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0208



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0209



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0210



Injector 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 Control

Possible Causes:



Fuel injector 1-10 control circuit is open or grounded
 
Fuel injector 1-10 power circuit from the ASD relay is open
 
Fuel injector 1-10 has failed
 
PCM injector 1-10 driver has failed
 

Trouble Code: P0300



Multiple Cylinder Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects two or more cylinders
 
Erratic or interrupted CKP or CMP Sensor signals
 
Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) in two or more cylinders
 
Vehicle driven with low fuel pressure or while very low on fuel
 

Trouble Code: P0301



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0302



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0303



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0304



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0305



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0306



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0307



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0308



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0309



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

Trouble Code: P0310



Cylinder 1-10 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or EVAP system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
 
Ignition system problem (coil or plug) in only one cylinder
 

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: P0320



No Crank Reference Signal to PCM

Possible Causes:



CKP Sensor signal circuit is open or grounded
 
CKP Sensor VREF circuit is open or grounded
 
Tone wheel or flex plate damage or erratic CKP Sensor signals
 
CKP Sensor is damaged or 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: P0351



Ignition Coil No. 1, 2 or 3 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition Coil No. 1, 2 or 3 primary "driver" circuit open or grounded
 
Ignition Coil No. 1, 2 or 3 is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0352



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0353



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0354



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0355



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0356



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0357



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0358



Ignition Coil No. 1-8 Primary Circuit

Possible Causes:



ASD relay power circuit to the ignition coil is open
 
Ignition coil primary "driver" circuit open or grounded
 
Ignition coil is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0401



EGR System Fault

Possible Causes:



EGR valve control circuit open, grounded or shorted to power
 
EGR exhaust transfer tubes blocked in the exhaust manifold
 
ASD relay power circuit open to the EGR solenoid
 
EGR valve is damaged or has failed
 
PCM has failed
 
TSB 18-33-98 contains a repair procedure for this code
 

 
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