2014 Nissan Murano-Crosscabriolet Check Engine Light

It means the engine computer stored an OBD-II fault code for an emissions or engine control issue.

The light is your 2014 Nissan Murano CrossCabriolet’s way of signaling a problem that needs diagnosis, ranging from a loose gas cap to sensor faults or misfires. We retrieve the exact code and freeze-frame data, then verify the true cause with guided testing. You can schedule service online and check service specials before you arrive in Mesa.

• OBD-II codes pinpoint affected systems, not the exact failed part
• Freeze-frame data shows operating conditions when the fault set
• Proper diagnosis prevents repeat failures and protects components

Typical causes include EVAP leaks (loose gas cap), oxygen sensor faults, mass air flow issues, catalytic converter efficiency codes, or engine misfires.

On the 2014 Nissan Murano CrossCabriolet, these categories represent the bulk of CEL visits we see in the Phoenix East Valley. Heat, short-trip driving, and age-related wear can all contribute. We confirm the root cause with Nissan-specific diagnostics, not just a generic code read.

• EVAP leaks often set P0440/P0455-type codes
• Misfires (P030X) can quickly damage catalytic converters if ignored
• MAF or O2 sensor faults can cause rough running and poor MPG

If the light is steady, drive gently to a service facility; if it’s flashing, stop driving to avoid catalytic converter damage from a severe misfire.

Use caution with a steady light and schedule a prompt diagnosis for your 2014 Nissan Murano CrossCabriolet. A flashing light indicates raw fuel may be hitting the catalyst, which can overheat and fail. When in doubt, have it towed to our Mesa location for inspection.

• Steady light = non-urgent but needs timely service
• Flashing light = potential misfire; stop driving
• Schedule an appointment for quick triage

A parts store reads the code; our Nissan technicians diagnose the root cause using factory scan tools and verification tests.

Codes are starting points, not final answers. At Larry H. Miller Nissan Mesa, we access manufacturer data, bi-directional tests, and service bulletins to pinpoint what actually failed on your 2014 Nissan Murano CrossCabriolet. You’ll get a written estimate before any repair.

• Factory scan tool access and guided diagnostics
• Isolation testing to confirm the failed component or circuit
• Clear estimate and repair options after diagnosis

No—clearing codes does not fix the fault, and readiness monitors must complete before an emissions test will pass.

After a reset, your 2014 Nissan Murano CrossCabriolet needs a full drive cycle for monitors to set. If the root issue remains, the code and light will return. We can diagnose the cause and confirm readiness before you test in the Greater Phoenix area.

• Readiness monitors show system self-tests are complete
• Unresolved faults will retrigger the light
• Schedule service to verify monitors and repairs

Yes—a loose or faulty cap commonly sets EVAP leak codes like P0440 or P0455.

Tighten the cap until it clicks several times and drive a few cycles to see if the light clears on your 2014 Nissan Murano CrossCabriolet. If the code persists, there may be a leak elsewhere in the EVAP system. Our Mesa team smoke-tests EVAP systems to locate small leaks.

• Check cap seal condition and ensure proper tightness
• Small leaks may require smoke testing to confirm
• Review current service specials before your visit

We begin your 2014 Nissan Murano CrossCabriolet diagnosis with a professional OBD-II scan using Nissan-capable tools, capturing fault codes and freeze-frame data. A technician reviews live data streams and confirms the symptom. Next, we perform isolation testing—such as circuit checks, smoke testing for EVAP leaks, or sensor signal verification—to identify the actual failed part or condition. You’ll receive a written estimate before any repair is performed, so you can decide the next step with confidence. If you have questions or need timing that fits your day, you can schedule service online 24/7 or browse our current service specials for available offers.

Larry H. Miller Nissan Mesa serves the Phoenix East Valley and Greater Phoenix metro area—including Mesa, Tempe, Scottsdale, Chandler, Gilbert, and Phoenix—with dealer-level engine diagnostics tailored to your 2014 Nissan Murano CrossCabriolet. Our factory-trained team uses Nissan-specific scan tools that go beyond basic code readers, enabling bi-directional tests, data graphing, and guided repair procedures. Arizona’s heat can aggravate EVAP systems and sensors, so we validate findings with smoke tests and component checks to prevent repeat faults. Have a steady light or a flashing warning? Get clear answers, a documented plan, and repair options that fit your needs. Find us just off the Loop 202 and Dobson Road in Mesa, or schedule an appointment online now.

On the 2014 Nissan Murano CrossCabriolet, you may encounter EVAP leak codes (P0440/P0455), oxygen sensor or catalyst efficiency codes (P013X/P0420), mass air flow issues (P0101), or misfires (P030X). Each code points to a system that needs further testing to isolate the cause. For example, leaving a misfire unresolved can overheat and damage the catalytic converter, turning a small repair into a costly replacement. Ignoring a mild EVAP leak may seem harmless, but it can prevent emissions readiness and cause test failures. Bring your 2014 Nissan Murano CrossCabriolet to Larry H. Miller Nissan Mesa in Mesa for an accurate diagnosis — schedule service.