Code Definition

P115D — Intake Manifold Runner Control Circuit Low (Bank 2)

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Toyota

About P115D

P115D is a manufacturer-specific powertrain diagnostic trouble code recorded for Toyota vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P115D is stored, the module has detected a signal or supply voltage lower than the expected operating range; and a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P115D is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC P115D is set when the Engine Control Module (ECM) detects a low voltage condition in the Intake Manifold Runner Control (IMRC) circuit for Bank 2. This typically indicates an issue with the actuator, wiring, or control signal, affecting airflow management in the intake manifold. Improper intake runner operation can lead to performance issues, reduced efficiency, or increased emissions.

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