P0615
Starter Motor Relay Circuit
2003-2003 Mazda B2300 2.3L I4
Moderate SeverityPowertrainGeneric (SAE)
The 2003 Mazda B2300 is equipped with a 2.3L inline-4 engine. Below you'll find detailed p0615 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the starter motor relay circuit.
Symptoms
- No start - no crank
- Starter relay clicking
- Intermittent no-start
Common Causes
- Faulty starter relay
- Wiring issue
- Ignition switch problem
- Neutral safety switch issue
- PCM starter control failure
Diagnostic Steps
- Test starter relay
- Check wiring to relay
- Test ignition switch
- Test neutral safety switch
- Check PCM starter output
Repair Notes
Replace starter relay. Check ignition switch and neutral safety switch.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0615 on Other Vehicles
Common Questions
What does code P0615 mean on a 2003-2003 Mazda B2300?
P0615 stands for "Starter Motor Relay Circuit". Malfunction in the starter motor relay circuit.
What are the symptoms of P0615 on a Mazda B2300?
Common symptoms of P0615 include: No start - no crank, Starter relay clicking, Intermittent no-start.
What causes P0615 on a 2003-2003 Mazda B2300?
Common causes of P0615 include: Faulty starter relay, Wiring issue, Ignition switch problem, Neutral safety switch issue, PCM starter control failure.
Last updated: March 2026