P0201
Injector Circuit/Open - Cylinder 1
2002-2002 Dodge Ram 2500 5.9L I6 Cummins Diesel
Moderate SeverityPowertrainGeneric (SAE)
The 2002 Dodge Ram 2500 is equipped with a 5.9L inline-6 diesel engine. Below you'll find detailed p0201 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Open circuit detected in the cylinder 1 fuel injector circuit.
Symptoms
- Check Engine Light
- Misfire cylinder 1
- Rough idle
- Loss of power
Common Causes
- Faulty injector #1
- Open wiring to injector
- PCM driver failure
- Corroded connector
Diagnostic Steps
- Test injector #1 resistance (typically 11-18 ohms)
- Check wiring continuity
- Swap injector with known good cylinder
- Check PCM output
Repair Notes
Replace injector #1 or repair wiring.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0201 on Other Vehicles
Common Questions
What does code P0201 mean on a 2002-2002 Dodge Ram 2500?
P0201 stands for "Injector Circuit/Open - Cylinder 1". Open circuit detected in the cylinder 1 fuel injector circuit.
What are the symptoms of P0201 on a Dodge Ram 2500?
Common symptoms of P0201 include: Check Engine Light, Misfire cylinder 1, Rough idle, Loss of power.
What causes P0201 on a 2002-2002 Dodge Ram 2500?
Common causes of P0201 include: Faulty injector #1, Open wiring to injector, PCM driver failure, Corroded connector.
Last updated: March 2026