P0615: Starter Relay Circuit
2 vehicles · 1 makes · $150-$900 repair
Most Reported On
P0615 is an OBD-II diagnostic trouble code meaning “Starter Relay Circuit.” This code means the engine/powertrain computer detected a fault (open, short, or unexpected voltage) in the starter relay control circuit, which the module uses to energize the starter relay and crank the engine. On vehicles with computer-controlled or push-button start, this circuit is part of the path that allows the engine to be started. A fault here can cause intermittent or no-crank/no-start conditions, so it is worth diagnosing even though it does not affect a running engine. This code is most commonly reported on 2022-2024 Nissan Frontier, and 2022-2025 Nissan Pathfinder, with repair costs ranging from $150 to $900.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0615, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P0615 mean?
P0615 stands for "Starter Relay Circuit." This code means the engine/powertrain computer detected a fault (open, short, or unexpected voltage) in the starter relay control circuit, which the module uses to energize the starter relay and crank the engine. On vehicles with computer-controlled or push-button start, this circuit is part of the path that allows the engine to be started. A fault here can cause intermittent or no-crank/no-start conditions, so it is worth diagnosing even though it does not affect a running engine.
What are the most common causes of P0615?
The most common causes of P0615 are: Faulty starter relay, Damaged, corroded, or loose wiring/connectors in the relay circuit, Open or shorted control wire to the relay, Corroded relay socket or fuse box terminals, Blown fuse in the starter control circuit, PCM/ECM driver fault (rare). The specific cause varies by vehicle.
How much does it cost to fix P0615?
Repair costs for P0615 range from $150 to $900, depending on the vehicle and root cause.
Which vehicles are affected by P0615?
Au7o has documented P0615 across 2 vehicle models from 1 manufacturers: Nissan.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.