P210C code meaning
Throttle Actuator B Control Motor Circuit Low
Powertrain system Generic code P21xx codes Check engine light
What P210C means
P210C is reserved for a low-side fault in the drive circuit of the second throttle motor, for example a grounded motor lead or an overloaded output stage. No manufacturer documents this code publicly. Makers with two throttles report such faults differently: GM's 23OBDG07 table files a bank 2 short to ground below 0.5 Ohm and driver overtemperature under P210A, and Ford's 2024 summary hangs all throttle B faults on P210A with failure-type bytes. CARB requires circuit faults of output devices to be detected, so where P210C is used it behaves like its bank 1 sibling P2102. Expect the second throttle to be switched off, rough running and reduced power. High-side faults would be P210D, open circuit P210A.
P210C at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P210C
- Reduced power and rough running
- Engine warning lamp on
Common causes of P210C
- Most likelyThrottle B motor wire shorted to ground
- PossibleShorted or jammed throttle motor B
- Less likelyFaulty bank 2 throttle driver in the ECU
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Throttle actuator b
What each part of P210C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 0C | The exact fault in that area. |
What to do next
- Note P210C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P210C
What does P210C mean?
P210C means "Throttle Actuator B Control Motor Circuit Low". P210C is reserved for a low-side fault in the drive circuit of the second throttle motor, for example a grounded motor lead or an overloaded output stage. It is a generic code, so it means the same on every make.
Is it safe to drive with P210C?
Drive gently and only to a workshop. With P210C the car can go into limp mode (reduced power) to protect itself.
Will P210C fail an emissions test?
Yes, it can. P210C is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P210C to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P210C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.