Nissan has acknowledged cooling system valve issues on several models. For example, and NTB16-085 cover certain Rogue, Altima, and Sentra models with P155B-00-related symptoms. These TSBs often prescribe a software update and/or valve replacement.
It seems you're asking about the , which typically indicates a problem with the Glow Plug Control Module or its circuit in diesel models like the Nissan Navara , , or . nissan p155b-00
The suffix indicates there are no additional sub-types defined for the fault, essentially serving as a general "fault detected" flag. In the context of a Nissan, this code usually triggers when the Engine Control Module (ECM) detects that the turbocharger actuator has not been correctly initialized or has lost its learned position. This means the engine's "brain" is unsure how to properly adjust the turbo vanes to provide the right amount of boost. Common Symptoms When this code is stored, you will likely notice: Nissan has acknowledged cooling system valve issues on
: An alternator that is undercharging or overcharging the system. Wiring and Harness Problems It seems you're asking about the , which
While this code is often due to a part defect or normal wear, you can reduce the risk:
Use a multimeter to check the resistance between the two heater wires (usually the same color, like two white or two black wires). A healthy Nissan sensor typically reads between 2 and 10 ohms Check Fuses:
The Nissan diagnostic code (often typed as P155) refers to a malfunction in the Heated Oxygen (O2) Sensor Heater Circuit (Bank 2, Sensor 1)