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The IBS calculates the State of Charge (SOC) and State of Health (SOH) of the battery. It communicates this data to the ECM via a Local Interconnect Network (LIN) bus or a dedicated signal wire. The ECM uses this data to regulate the alternator duty cycle, adjusting charging voltage based on the battery's needs (often referred to as "Decoupling" or "Load Dump" strategies).
If one module shows significantly higher resistance (>30% above average): nissan p155b00
In some older Versa and Sentra models, a software update from the dealer was released to address false P155B00 codes caused by overly sensitive logic in the ECM. The IBS calculates the State of Charge (SOC)
: The engine may shake or feel unstable when stopped. If one module shows significantly higher resistance (>30%
While the car may drive normally, owners often report the following:
. On many modern Nissan models, like the Sentra or Rogue, this indicates that the Engine Control Module (ECM) is receiving an unexpected signal from the sensor that monitors the battery's state of charge and current flow. Meaning & Causes
This code is frequently associated with modern Nissan models, including the Rogue, X-Trail, and Titan. Common Causes of Nissan P155B00
