P200C code meaning
Particulate Filter Over Temperature (Bank 1)
Powertrain system Generic code P20xx codes Check engine light
What P200C means
P200C reports that the exhaust at the bank 1 particulate filter has become hotter than the filter may tolerate, typically when a heavily loaded filter burns off during regeneration. GM's diesel tables set it as Type A, MIL on the first trip: the 2018 group uses more than 850 °C in regeneration and 800 °C otherwise ahead of the filter (30 of 40 samples), the 2020 table 900 °C behind it, the 2025 table 800 °C from 300 of 450 samples. Ford's 2023 diesels need over 830 °C upstream or 950 °C downstream, or a dead downstream sensor, for about 3 s. Hino's tech tip for 2011–2014 trucks has the DOC face checked for melting, the DPF replaced if soot passed it, and the SCR catalyst inspected. GM's PIP5468 for the L5P adds leaking charge-air ducts. Because heat can crack the filter, find the trigger before clearing.
P200C at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P200C
- Malfunction indicator lamp on
- Regeneration aborted or blocked
- Possible power reduction to protect the exhaust system
Common causes of P200C
- Most likelyExcess soot load burning off too fast during regeneration
- PossibleToo much fuel reaching the exhaust (leaking injector, post injection, exhaust brake or injector problems)
- PossibleLeaking charge-air ducting upsetting combustion and soot model
- Less likelyFaulty exhaust temperature sensor near the filter
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Diesel particulate filterDPF temperature sensorRegeneration strategy
What each part of P200C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 0C | The exact fault in that area. |
What to do next
- Note P200C 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 P200C
What does P200C mean?
P200C means "Particulate Filter Over Temperature (Bank 1)". P200C reports that the exhaust at the bank 1 particulate filter has become hotter than the filter may tolerate, typically when a heavily loaded filter burns off during regeneration. It is a generic code, so it means the same on every make.
Is it safe to drive with P200C?
Drive gently and only to a workshop. With P200C the car can go into limp mode (reduced power) to protect itself.
Will P200C fail an emissions test?
Yes, it can. P200C 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 P200C to fix?
Difficulty: hard. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P200C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.