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.
Circuit/System Verification
- Do not replace the engine control module for this DTC. DTC P0700 is an informational DTC.
- Correct any engine controls and communication DTCs before diagnosing transmission control module DTCs.
- Verify that there are no engine controls or communication DTCs set.
- If a DTC is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle for diagnosis of engine control or communications DTCs.
- If a DTC is not set
- If a DTC is set
- Verify that there are no transmission control module DTCs set.
- If a DTC is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle for diagnosis of transmission control module DTCs.
- If a DTC is not set
- If a DTC is set
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- Verify the DTC does not set.
- If the DTC sets
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If the DTC does not set
- If the DTC sets
- All OK.
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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.