OBD-II Code
U0292
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$250–$4,500+
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
$250 (re-pair/recode with OEM scan tool at a dealer or hybrid specialist) to $1,400 (BECM replacement + programming) to $4,500+ (BECM + pack work if module damage extended).
U0292 means another module on the CAN bus (typically the HCU/HPCM hybrid powertrain control module or the engine ECM) sent a request to the Hybrid Battery Energy Control Module (BECM/BMS/LBC depending on OEM) and got no reply within the expected timeout window.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureU0292 means another module on the CAN bus (typically the HCU/HPCM hybrid powertrain control module or the engine ECM) sent a request to the Hybrid Ba…
U0292 means another module on the CAN bus (typically the HCU/HPCM hybrid powertrain control module or the engine ECM) sent a request to the Hybrid Battery Energy Control Module (BECM/BMS/LBC depending on OEM) and got no reply within the expected timeout window.
This is a comm-loss code, not a battery-internal fault, so the diagnostic question is
is the BECM dead, is the bus dead, or is the BECM alive but unreachable. The cheapest-first ladder: scan all modules on the bus and confirm whether the BECM responds AT ALL (it should appear in the module list with VIN, software version, and DTC support). If the BECM is completely absent from the list, check power and ground at the BECM connector — most hybrid BECMs run off switched 12V plus a wake-up signal from the HPCM; loss of either drops the module off the bus. If the BECM responds but the HPCM still flags U0292, look for a CAN bus segment issue (most hybrids use multiple CAN segments with a gateway, and the HV bus to the BECM is often a dedicated segment). CAN bus dominant is ~2.5V CAN-Low / ~3.5V CAN-High; idle is both rails at 2.5V; bus resistance OBD-II port key-off is ~60 ohms. DO NOT probe HV orange-wire circuits with a standard multimeter — even comm wiring near the pack can run alongside HV bus bars.
Vehicle-specific patterns2004-2015 Toyota Prius (Gen2/Gen3) throws U0292 almost exclusively after a hybrid battery service or pack swap where the BECM/Battery ECU was not re-…
- 2004-2015Toyota Prius (Gen2/Gen3) throws U0292 almost exclusively after a hybrid battery service or pack swap where the BECM/Battery ECU was not re-paired to the vehicle via Techstream — the BMS will boot and self-check but refuses to talk on the comm bus until it's authenticated against the VIN. The re-pair is a documented procedure but tech-shops without OEM scan-tool access frequently get stuck here.
- 2003-2011Honda Civic Hybrid throws U0292 after an IMA pack swap when the BCM (Battery Condition Monitor) wasn't reset with the HDS scan tool — the pack works mechanically but the powertrain can't see it.
- 2011-2015Chevy Volt Gen1 throws U0292 after a Voltec service if the LBC wasn't reflashed against the vehicle's tune file; GM Service Information has the procedure.
- 2010-2015Lexus CT200h, RX450h, HS250h follow the Prius pattern exactly since they share the BECM architecture.
Estimated repair$250 (re-pair/recode with OEM scan tool at a dealer or hybrid specialist) to $1,400 (BECM replacement + programming) to $4,500+ (BECM + pack work if module damage extended).
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