P269B code meaning
Exhaust Aftertreatment Glow Plug Control Circuit/Open
Powertrain system Generic code P26xx codes Check engine light
What P269B means
Some diesels inject fuel into the exhaust through a small vaporizer whose glow plug turns the fuel into vapor before it reaches the oxidation catalyst. Ford calls this downstream injection (DSI) on the 3.2 L Transit, used so that filter regeneration needs fewer in-cylinder post injections and less oil is diluted. P269B covers an open in the circuit by which the engine computer controls that glow plug. Ford's diesel summaries from 2017 and 2018 watch the line continuously with key on at 9 to 16.3 V battery voltage and set the open fault when the voltage stays between 2.9 and 3.2 V for 5 s. The 2015 and 2016 summaries reported the same condition as P2687. With the plug dead the fuel cannot be vaporized, so regeneration is cut back and the lamp comes on.
P269B at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P269B
- MIL on
- Particulate filter regenerations fail or become rare
- More frequent in-cylinder regeneration, oil level may rise
Common causes of P269B
- Most likelyOpen wire or connector between engine computer and glow plug relay
- PossibleVaporizer glow plug relay coil open
- Less likelyBlown fuse in the glow plug control feed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Aftertreatment glow plugControl moduleWiring harness
What each part of P269B means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| 9B | The exact fault in that area. |
What to do next
- Note P269B 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 P269B
What does P269B mean?
P269B means "Exhaust Aftertreatment Glow Plug Control Circuit/Open". Some diesels inject fuel into the exhaust through a small vaporizer whose glow plug turns the fuel into vapor before it reaches the oxidation catalyst. It is a generic code, so it means the same on every make.
Is it safe to drive with P269B?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P269B fail an emissions test?
Yes, it can. P269B 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 P269B to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. This is a job for a workshop.
Will P269B clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.