What does code P0700 mean on a Honda and is it safe to drive?
P0700: Transmission Control System Malfunction. Here's what it means on your Honda, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Generic code indicating the TCM has detected a problem. Specific transmission codes (P07xx) will usually be present.
Common causes for your Honda
- Various transmission electrical or hydraulic faults
- Low or dirty fluid
- Solenoid or sensor failure
Symptoms
- Check Engine Light
- Transmission slipping, harsh shifts
- Limp mode possible
Typical fixes
- Read transmission-specific codes
- Service or replace transmission fluid
- Replace solenoids/sensors as diagnosed
Repair cost range
For a Honda, repairs for P0700 often fall between $100 and $3000, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Honda
On Honda CVT-equipped models, P0700 often accompanies P0868 (CVT line pressure low). Honda CVT fluid must be Honda-spec; using aftermarket fluid causes CVT failures and transmission fault codes.
Most commonly affected models
Accord 2013–2017CR-V 2015–2017Odyssey 2011–2017