P200D: Particulate Filter Over Temperature (Bank 2)

P200D is the overheating code for a particulate filter on bank 2 and therefore only appears where the exhaust of the second bank has its own filter and temperature sensors. No manufacturer documents P200D publicly; the published diesel layouts of GM, Ford and Hino run one filter and report its overheating as P200C. Those tables show how such a limit is built: a fixed ceiling between roughly 800 and 950 °C on the sensor ahead of or behind the filter, confirmed over many samples or a few seconds, and stored at once with the warning lamp. On a twin-filter engine the bank 2 check looks only at its own sensors, so a fault limited to one side, such as one leaking injector, an overloaded filter on that bank or a skewed sensor, separates the two codes. The control unit will usually stop regeneration and may limit power.

Bank 2 is the side without cylinder 1, so it only exists on V or boxer engines.

Symptoms

• Malfunction indicator lamp on
• Regeneration stopped
• Power may be limited

Most likely causes

• Bank 2 filter overloaded with soot before regeneration
• Leaking injector or excess fuel on bank 2 cylinders
• Exhaust temperature sensor on bank 2 reading too high

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the soot load and differential pressure with a scanner
2. Check the differential pressure sensor's hoses
3. Check the temperatures before and after the filter
4. Fix any fuel injection or EGR codes before regenerating
5. Perform a regeneration while driving or at a repair shop when the diagnosis allows it

Good to know

• Repair difficulty: hard
• It can trigger limp mode.
• It affects emissions.

What each character of P200D means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 0: Subsystem depends on the code range
• 0D: Specific fault in that system

Frequently asked questions

Can I keep driving with code P200D?

If the light is on steadily, take a highway drive or go to a repair shop soon. If the car is in limp mode or the light is flashing, do not push the engine.

What causes code P200D?

The most common causes are: bank 2 filter overloaded with soot before regeneration; leaking injector or excess fuel on bank 2 cylinders; exhaust temperature sensor on bank 2 reading too high.

Related codes

• P200CParticulate Filter Over Temperature (Bank 1)
• P200FCatalyst System Over Temperature (Bank 2)
• P2003Diesel Particulate Filter Efficiency Below Threshold (Bank 2)
• P2429Exhaust Gas Temperature Too High (Bank 2)

Sources

• gsi.ext.gm.com: 20OBDG04 Diagnostics
• fordservicecontent.com: obd summary diesel 2023
• static.nhtsa.gov: MC 10117737 9999
• en.wikipedia.org: Diesel particulate filter

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.