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2022 Eclipse Cross - Transmission Limp Mode & P0700

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Amanda S. · rep 0 · May 22, 5:29 AM · 1 replies · solved · Question

Vehicle: 2022 Mitsubishi Eclipse Cross SE

Hello everyone,

I'm having a serious issue with my 2022 Mitsubishi Eclipse Cross, 1.5T AWD, with about 30,000 miles. While driving yesterday, the car suddenly went into what felt like 'limp mode.' The engine RPMs were high, but the car wasn't accelerating properly, and it felt like it was stuck in a single gear. The Check Engine Light also came on.

I managed to get it home and scanned it. The only code I found was P0700, which is a generic transmission control system malfunction. I know this usually means there are other, more specific transmission codes stored in the TCM (Transmission Control Module) that my basic scanner can't read.

Has anyone experienced this with their Eclipse Cross or other Mitsubishi CVT vehicles? What could be causing this, and what should I do next? I'm worried about the transmission.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:29 AM

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ClearTheCode admin answer:

The P0700 code indicates a general fault within the Transmission Control System (TCS) and is often accompanied by more specific codes stored in the Transmission Control Module (TCM). When your 2022 Mitsubishi Eclipse Cross enters limp mode, it's a protective measure to prevent further damage to the transmission.

Here's what you should consider and do:

  1. Do Not Drive Extensively:

    • Action: If your vehicle is in limp mode, avoid driving it more than absolutely necessary. Prolonged driving in this state can exacerbate the underlying transmission issue and lead to more costly repairs.
    • Causes: Limp mode is activated by the TCM when it detects a critical fault, protecting the transmission from severe damage.

  2. Check Transmission Fluid Level and Condition:

    • Action: While many modern CVTs are sealed, some still have a dipstick or a specific procedure for checking fluid. Consult your owner's manual. Look for proper fluid level, and check the fluid's color and smell. Burnt smell or dark, murky fluid indicates a problem.
    • Causes: Low transmission fluid, contaminated fluid, or degraded fluid can cause overheating and operational issues.

  3. Scan for Specific TCM Codes:

    • Action: A standard OBD-II scanner will only show P0700. You need an advanced scanner (often found at repair shops) that can communicate with the TCM to retrieve the specific 'P' codes (e.g., P07xx, P08xx) that detail the exact nature of the transmission fault. These codes are crucial for proper diagnosis.
    • Causes: The P0700 is a 'request' from the TCM to illuminate the CEL; the specific codes in the TCM will point to issues like:
      • P0705 - Transmission Range Sensor Circuit Malfunction
      • P0715 - Input/Turbine Speed Sensor Circuit Malfunction
      • P0741 - Torque Converter Clutch Circuit Performance or Stuck Off
      • P0776 - Pressure Control Solenoid 'B' Performance/Stuck Off

  4. Consider Electrical Connections:

    • Action: Briefly inspect visible electrical connectors to the transmission for looseness, corrosion, or damage. While less common, a poor connection can cause intermittent issues.
    • Causes: Loose or corroded electrical connectors to transmission sensors or solenoids.

When to See a Shop: Given that your 2022 Eclipse Cross is relatively new and experiencing limp mode with a P0700 code, it is highly recommended to have it towed to a Mitsubishi dealership or a reputable transmission specialist immediately. This is not a DIY fix for most owners. A professional will have the necessary diagnostic tools to read the specific TCM codes, perform advanced tests on the CVT, and accurately diagnose the root cause, which could range from a faulty sensor or solenoid to internal CVT issues. Early diagnosis can often prevent more extensive and expensive repairs.

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