Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA2013MX-5 MIATA GRAND TOURING, AUTOMATIC TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL DELIVERY SYSTEM (LF 2.0L)FUEL PUMP UNIT INSPECTIONCIRCUIT OPEN/SHORT INSPECTION

2013 Mazda MX-5 Miata Grand Touring, Automatic Trans

Circuit Open/Short inspection

2013 Mazda MX-5 Miata Grand Touring, Automatic TransSECTION Circuit Open/Short inspection

Inspect the following wiring harnesses for an open or short circuit (continuity check).
Open circuit
- If there is no continuity, the circuit is open. Repair or replace the harness.
  - Fuel pump unit terminal D and body ground
  Fig 1: Fuel Pump Relay Connector
  Courtesy of MAZDA MOTORS CORP.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.