Code Definition

P0A06 — Motor electronics coolant pump circuit low

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

About P0A06

P0A06 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 P0A06 is stored, the module has detected a signal or supply voltage lower than the expected operating range.

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 P0A06 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

This DTC is set when the control module detects a voltage level in the motor electronics coolant pump control circuit that is below the expected range, typically indicating a short-to-ground condition or excessive resistance. The coolant pump is vital for maintaining thermal regulation of the power electronics and electric motor. A low circuit voltage suggests a fault in the control or power delivery to the pump.

Quick Facts