P2062 code meaning
Reductant/Regeneration Supply Control Circuit/Open
Powertrain system Generic code P20xx codes Check engine light
What P2062 means
J2012 keeps this title deliberately broad: the controlled supply that feeds the reductant system or, in some layouts, the regeneration hardware, mostly a supply pump or the relay powering it. P2062 reports an open control circuit, so the commanded stage draws no current. No manufacturer documents P2062 publicly. Published systems monitor this function under component codes: Ford's 2023 diesels set P208A when reductant pump voltage sits between 2.6 and 3.4 V or the pump controller supply drops below 6 V, and Deutz reports an open DEF pump drive as P05EE-00. Typical causes are a blown fuse, a relay that does not close, a broken wire or a failed pump. Without supply the reductant line cannot build pressure and dosing stops; CARB treats this as part of reductant delivery monitoring.
P2062 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 P2062
- Engine or emission warning lamp on
- No reductant pressure, dosing stops
- Restart countdown or speed limit on some vehicles
Common causes of P2062
- Most likelyBlown fuse or relay not closing in the supply path
- PossibleBroken wire or unplugged connector at the pump
- PossibleSupply pump with open winding
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Reductant supply pumpReductant supply relay
What each part of P2062 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. |
| 62 | The exact fault in that area. |
What to do next
- Note P2062 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 P2062
What does P2062 mean?
P2062 means "Reductant/Regeneration Supply Control Circuit/Open". J2012 keeps this title deliberately broad: the controlled supply that feeds the reductant system or, in some layouts, the regeneration hardware, mostly a supply pump or the relay powering it. It is a generic code, so it means the same on every make.
Is it safe to drive with P2062?
Drive gently and only to a workshop. With P2062 the car can go into limp mode (reduced power) to protect itself.
Will P2062 fail an emissions test?
Yes, it can. P2062 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 P2062 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2062 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.