Updated Last reviewed September 15, 2026By CarFaultIQ Editorial Team
Verify with official recall databases, service records, a mechanic inspection, and local market data before relying on this summary.
At a glance
Quick diagnostic answer
P0700 is an informational gateway code: the TCM detected a fault and requested the MIL. A transmission-capable scan tool must read the TCM's own codes to find the actual problem.
SeverityHighUrgencyPlan a repair soonEvidenceMedium confidence
OBD code
P0700
System/category
Transmission
Severity
High
Structured severity term
Urgency
Plan a repair soon
Structured rule output, needs verification
Can I drive?
Drive only to a repair shop
Treat this as a stop-soon code: it often arrives with limp mode, and continued driving can compound transmission damage.
Repair/cost band
$$$ · Major
Estimate band only — actual cost varies by region, parts availability and labor rates.
Vehicle applicability
Universal gateway code; heavily associated with the CVT-era Nissan models and DPS6-era Ford Focus covered on this site.
Current applicability note is free text
Computed rule output may be more cautious than stored content and is never used to soften safety-critical risks.
Short answer
P0700 is the transmission computer raising its hand — it has stored its own fault and asked the engine computer to turn the light on. The real diagnosis lives in the transmission codes behind it.
Ranked from published CarFaultIQ rule data for this page — not a remote diagnosis. Other causes are possible.
UrgencyPlan a repair soon
Can I keep driving?Usually OK to drive short-term — book an inspection soon
Check this firstNote when the hesitation happens (light throttle vs kickdown) before any repair visit
Ask the mechanic to verifyScan transmission-specific codes and check fluid condition before major work
Do not ignore ifSlipping, harsh jolts, or the transmission warning light joining in
SeverityHighDrive?Drive only to a repair shopRepairProfessional
Key takeaways
The real diagnosis lives in the transmission codes behind it.
Most common causes: internal transmission faults (clutches, belt/pulley on cvts, solenoids) and low or degraded transmission fluid.
First diagnostic step: read the TCM codes with a capable scanner — P0700 alone names nothing.
Can I still drive with this?
Drive only to a repair shop
Treat this as a stop-soon code: it often arrives with limp mode, and continued driving can compound transmission damage.
SeverityHigh
High
Diagnostic flow
What it meansP0700 is an informational gateway code: the TCM detected a fault and…
Check this firstRead the TCM codes with a capable scanner — P0700 alone names nothing
Likely causeInternal transmission faults (clutches, belt/pulley on CVTs, solenoids)
Can you drive?Drive only to a repair shop
P0700 is a generic OBD-II code, which means it carries the same core definition on every make — what differs is which causes are most likely on your engine.
Work the diagnostic steps below in order. They are sequenced from cheapest-and-most-common to most expensive, which is exactly the order a fair shop should follow.
Structured DTC reference
What P0700 means
The transmission control system has recorded a fault
A trouble code identifies the circuit or monitored condition that failed its test. It does not, by itself, identify the failed part or prove the same cause on every vehicle.
Severity and drivability
The code alone is not enough to assign one universal severity or “safe to drive” answer. Stop driving for loss of braking or steering, severe overheating, oil-pressure loss, a fuel leak or fire risk, or any rapidly worsening safety symptom.
P0700 is an informational gateway code: the TCM detected a fault and requested the MIL. A transmission-capable scan tool must read the TCM's own codes to find the actual problem.
Common symptoms
Check engine light, often with harsh or erratic shifting
Limp mode (stuck in one gear)
Shudder or slipping
On CVTs: whine, rubber-band feel, overheat protection
Likely causes
Internal transmission faults (clutches, belt/pulley on CVTs, solenoids)
Low or degraded transmission fluid
Speed sensor or wiring failures
TCM faults
Diagnosis steps
Read the TCM codes with a capable scanner — P0700 alone names nothing
Check fluid level and condition per the exact service procedure
Diagnose the specific TCM code(s) found
On CVT-equipped models, pull the VIN's CVT warranty/campaign history before paying for repairs
What a mechanic should check
Never accept a quote based on P0700 alone — demand the underlying TCM codes in writing.
Vehicle applicability
Universal gateway code; heavily associated with the CVT-era Nissan models and DPS6-era Ford Focus covered on this site.
Repair actions / cost band
$$$ · Major
Estimate band only — actual cost varies by region, parts availability and labor rates.
P0700 — vehicles with official records naming this code
P0700 is named in NHTSA-published manufacturer communications or investigations for 14 vehicle families, including:
A code named in a manufacturer communication means the document refers to it for those vehicles. It is not a diagnosis of any car, and it does not mean the code is common on that vehicle.
Frequently asked questions
Is P0700 itself the problem?
No — it's a pointer. The transmission computer's own codes identify the real fault.
Can I keep driving in limp mode?
Only gently and briefly to reach a shop. Limp mode exists to prevent further damage.
Could it just be low fluid?
Sometimes — and it's the cheapest check. Use the exact procedure; many modern transmissions have no dipstick.