• Check engine light is on
• Transmission may not shift properly
• Poor fuel economy
• Faulty Transmission Control Module (TCM)
• Transmission wiring issues
• Internal transmission failure
MIL: Malfunction Indicator Lamp, also known as the check engine light.
TCM: Transmission Control Module, the computer that controls the transmission.
• P0701
• P0702
Transmission Control System (MIL Request)
This code means that the car's computer has detected a problem with the transmission and wants to let you know by turning on the check engine light.
P0700 is a generic OBD-II code that indicates a malfunction in the transmission control system. It triggers the check engine light to alert the driver.
The P0700 code is set when the Transmission Control Module (TCM) detects a malfunction and requests the Engine Control Module (ECM) to turn on the Malfunction Indicator Lamp (MIL). This code is a general alert that there is an issue within the transmission system, but it does not specify the exact problem.
• Use an OBD-II scanner to check for additional transmission codes.
• Inspect the transmission fluid level and condition.
• Check transmission wiring and connectors for damage.
• Repair or replace damaged transmission wiring.
• Replace the Transmission Control Module if faulty.
• Perform a transmission fluid change if needed.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regular transmission fluid checks and changes
• Avoid aggressive driving
• Routine vehicle maintenance
Transmission System Issue
• Do not ignore the check engine light.
• Have the vehicle diagnosed as soon as possible to prevent further damage.
Transmission issues may be covered under powertrain warranty. Check with your vehicle manufacturer.
P0700 is a common code that has been used since the introduction of OBD-II systems in 1996. It often indicates underlying transmission issues.
Moderate – It is important to address this issue soon to avoid potential transmission damage.
Driving with a malfunctioning transmission can be unsafe and may lead to further vehicle damage.
• Vehicle must be running.
• Transmission must be engaged.
The Transmission Control Module is typically located inside the vehicle, near the center console or under the dashboard.
Q: What does a P0700 code mean?
A: It means there is a problem with the transmission system, and the car's computer is alerting you with the check engine light.
Q: Can I drive with a P0700 code?
A: It's not recommended to drive for long periods with this code as it may indicate serious transmission issues.
