P208CReductant Pump A Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P208C sets when the drive of DEF pump A is pulled low, either by a ground fault or by current far beyond normal. Ford's 2023 diesels look for pump current over 5 A or pump controller current over 15 A with the driver off, the same 8 s window as for the open fault P208A. In GM's 2018 diesel table the DEF control module itself reports the phase shorted to ground; 20 out of 25 samples, Type A. The 2014 VW Touareg TDI trips once the control line falls under 2.74 V, and Deutz EMR5 files it as P208C-11, too little voltage or a path to ground. Jaguar Land Rover found P208C-11 together with P208A-13 on 2018–2019 Range Rover Velar 2.0 diesels and fixed it with a PCM update. Real shorts are often chafed wires near the tank or a seized pump, which may also blow the fuse. Dosing stops.
- What you may notice
- MIL and DEF dosing malfunction warning
- Pump fuse found blown
- Countdown to no-restart
- Likely causes
- LikelyPump drive wire shorted to ground near the tank
- PossibleSeized or crystallised pump drawing excessive current
- PossibleSoftware error in the controlling module (JLR Velar)
- RareWater in the pump connector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.