Code Definition

P00A7 — Intake Air Temperature Sensor Signal Low - Bank 2 - Sensor 2

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P00A7

P00A7 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P00A7 is stored, the module has detected a signal or supply voltage lower than the expected operating range; a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine; and a sensor-related fault — the reported value from the named sensor is out of spec.

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.

Because P00A7 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P00A7 fault code is set when the Engine Control Module (ECM) detects a lower than expected voltage or signal from the second Intake Air Temperature (IAT) sensor in Bank 2. This sensor measures the temperature of the air entering the engine's intake system. The IAT sensor's data are critical for the ECM to accurately determine air density, which in turn influences the air-fuel mixture, ignition timing, and other engine management decisions. In multi-cylinder engines that are divided into banks, such as V6 or V8 engines, Bank 2 refers to the second group of cylinders. A low signal from the I...

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