P2155: The fuel injector unit D power supply voltage has a broken or disconnected wire
The fuel injector unit D power supply voltage has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
| Code | P2155 |
|---|---|
| System | Engine and transmission |
| Group | P21xx, Throttle, injection and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2155 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P2155 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P2151 The fuel injector unit B power supply voltage is above normal
- P2152 The fuel injector unit C power supply voltage has a broken or disconnected wire
- P2153 The fuel injector unit C power supply voltage is below normal
- P2154 The fuel injector unit C power supply voltage is above normal
- P2156 The fuel injector unit D power supply voltage is below normal
- P2157 The fuel injector unit D power supply voltage is above normal
- P2158 The vehicle speed sensor B is not working properly
- P2159 The vehicle speed sensor B gives readings outside the normal range
- P2100 Throttle actuator A control motor circuit open
- P2101 Throttle actuator A control motor circuit range or performance
- P2102 Throttle actuator A control motor circuit low
- P2104 Throttle control system: forced idle
What does code P2155 mean?
The fuel injector unit D power supply voltage has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
How do you clear P2155?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P2155 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
