P2155 Dodge Code - Cylinder 4 Injector High Control Circuit
Quick Answer
The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2155 Dodge indicates Cylinder 4 Injector High Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2155 Dodge Description
What are the Possible Causes of the DTC P2155 Dodge?
- Faulty Fuel Injector 4
- Fuel Injector 4 harness is open or shorted
- Fuel Injector 4 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2155 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2155 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2155 Dodge Code
1. What does the OBDII code P2155 mean on a Dodge vehicle?
P2155 indicates an issue with the Cylinder 4 Injector High Control Circuit, meaning the ECM has detected a fault in the electrical circuit controlling the injector for cylinder 4.
2. What are the common symptoms of a P2155 code on a Dodge?
Symptoms may include poor engine performance, misfires, rough idling, reduced fuel efficiency, and the check engine light turning on.
3. What causes the P2155 code to appear?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning ECM, or high resistance in the circuit.
4. Can I drive my Dodge with a P2155 code?
Driving with a P2155 code is not recommended, as it can cause poor performance, increased emissions, and potential engine damage if left unresolved.
5. How do I diagnose the P2155 code on my Dodge?
Diagnosis involves inspecting the fuel injector, wiring, and connectors for damage, testing the circuit for continuity or resistance, and possibly using a scan tool to monitor injector operation.
6. How do I fix the P2155 code on a Dodge?
Repairs may include replacing the faulty injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to repair a P2155 code on a Dodge?
Repair costs vary depending on the cause but may range from $150 to $500, with injector replacement and labor being the primary expenses.
8. Can a faulty ECM cause a P2155 code?
Yes, a malfunctioning ECM can send incorrect signals to the injector or fail to properly monitor the circuit, leading to the P2155 code.
9. Will clearing the code with a scan tool fix the P2155 issue?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning.
10. How can I prevent the P2155 code from occurring again?
Regular maintenance, such as inspecting and cleaning fuel injectors and checking wiring for wear, can help prevent issues leading to the P2155 code.
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