P208B fault code: what it means

P208B: AdBlue (reductant) pump 1 control performance (2021 JL EcoDiesel). Listed in an FCA PCM update; persistent faults can lead to AdBlue warnings.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

1. PCM software
2. AdBlue pump/module
3. frozen or crystallised AdBlue
4. wiring

P208B by make

What the repair usually costs

• AdBlue heater / pump / sender assembly replacementNZ$930–NZ$2,710 · A$850–A$2,400

Not sure what P208B means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.