What it means
A receiving module detected implausible data from the fuel additive control module (typically cerium-based DPF additive on Eolys/PSA systems). Tank level or dosing values fail plausibility checks and are rejected.
At a glance
- Usually lights the warning light of the system that lost communication
- Affects emissions; the car can fail an emissions test
How it works
The fuel additive control module manages additive dosing on vehicles equipped with a particulate-filter additive system and reports tank or dosing information to other modules. A receiving module sets U0467 when that fuel additive data fails plausibility checks and is rejected.
Common causes
Most likely first.
- Module internal fault or sensor input drift
- Software version mismatch after replacement
- Gateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
How to diagnose it
- Scan all modules, record freeze-frame data, and note any DPF, additive, or communication codes to see which data was rejected.
- Compare live additive tank level and dosing data with the vehicle's service history and the displayed additive warning, if present.
- Inspect the fuel additive control module connectors, wiring, and relevant level or dosing sensor connections for damage, corrosion, or poor contact.
- Check the CAN network and gateway for related communication faults that could affect additive messages.
- If the wiring and network are sound, verify sensor inputs, additive module software compatibility, and dosing operation using the manufacturer's procedure.
Common fixes
- Repair damaged or corroded additive module wiring and connector terminals.
- Restore a poor power or ground connection to the additive module.
- Correct module software or configuration after replacement.
- Repair or replace a faulty additive level sensor or control module if its reported values remain implausible.
- Repair an additive dosing fault or gateway/CAN issue identified by diagnosis.
Can I keep driving?
A short trip may be possible if the vehicle runs normally, but avoid prolonged driving with additive or DPF warnings because incorrect dosing can impair particulate-filter regeneration and increase emissions. Stop if the engine loses power or enters limp mode.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.