Nissan P155b00 __top__ Jun 2026
| Code | Description | |------|-------------| | | Battery Current Sensor Circuit Range/Performance | | P1551 | Battery Current Sensor Low Input | | P1554 | Battery Current Sensor Performance | | P155E | Energy Management System (specific sub‑code) | | P155F | Energy Management System (specific sub‑code) |
The fault code in Nissan vehicles—specifically common in diesel models like the Navara NP300
Do not just buy a new sensor immediately; instead, complete a systematic diagnostic process to save time and money: 1. Inspect the Physical Connector
It is important to note that symptoms may be intermittent, especially if the fault is related to a loose connection or a failing sensor. nissan p155b00
Always wear eye protection. Ensure the vehicle is in Park with the parking brake set.
The causes of the P155B00 code can be complex and varied. Some common causes include:
: Look at the small sensor attached to the negative battery cable for any signs of physical damage or unplugged connectors. Clear the Code OBD-II scanner | Code | Description | |------|-------------| | |
Consider immobilizer/security interactions: If the vehicle exhibits starting or anti-theft symptoms, pair the code readout with immobilizer diagnostics—key recognition, transponder function, and the related control unit behavior.
The P155B00 code is a manufacturer-specific code that's related to the throttle control system in Nissan vehicles. This code is usually triggered when the engine control module (ECM) detects an issue with the throttle control system, specifically with the throttle position sensor (TPS).
Locate the offending oxygen sensor along the exhaust piping. Unplug the harness and inspect it for signs of corrosion, bent pins, or liquid intrusion. It is highly common on older Nissan models for oil from a leaky filler neck or valve cover to drip down into the sensor harness [1.16], skewing voltage values. Use a can of electrical contact cleaner to clear any residue [1.16]. 2. Check for Exhaust Leaks Ensure the vehicle is in Park with the parking brake set
Because the P155B00 code often results from an intermittent electrical issue (e.g., a loose connector or an aging battery), the check engine light may come and go. Even if the light turns off on its own, the code will remain stored in the ECM memory. Therefore, a proper diagnosis is still necessary to prevent future driveability problems.
Resistance caused by corrosion on the terminal connections or the chassis ground cable will disrupt voltage reference loops.
The battery current sensor is typically located on the , near the terminal. Steps to test it include: