Code Definition

P0615 — Starter relay circuit

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

About P0615

P0615 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 P0615 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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 P0615 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 P0615 fault code is set when the Engine Control Module (ECM) detects a malfunction in the starter relay circuit. The starter relay is an electrical component that acts as a switch to control the power supply from the battery to the starter motor when starting the engine. It plays a crucial role in the vehicle's starting system, ensuring that the starter motor engages and disengages correctly. When there is a malfunction in this circuit, it can lead to issues with starting the vehicle. This could manifest as the engine not cranking when the ignition key is turned, intermittent starting issu...

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