OBD-II Code
P0884
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–$1,800
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0884 is the intermittent variant of the TCM power input fault, set when the TCM sees its ignition feed glitch or drop out briefly and recover, too short to set P0880 or P0882 but long enough to trip the rationality monitor.
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 procedureP0884 is the intermittent variant of the TCM power input fault, set when the TCM sees its ignition feed glitch or drop out briefly and recover, too s…
P0884 is the intermittent variant of the TCM power input fault, set when the TCM sees its ignition feed glitch or drop out briefly and recover, too short to set P0880 or P0882 but long enough to trip the rationality monitor. This is the hardest of the TCM-power family to diagnose because the fault is by definition not present during static testing.
Cheapest first
- scan-tool the freeze-frame data and note the conditions (cold start, hot restart, over bumps, during specific gear changes), then perform a wiggle test on the entire TCM power harness from PDC to module while a helper watches battery voltage on a graphing meter; any drop of more than 0.5V during wiggle is the fault.
- Caveat: on Chrysler TIPM platforms, P0884 is almost always the TIPM-internal TCM relay starting to fail.
Vehicle-specific patterns2007-2014 Chrysler 300, Charger, and Grand Cherokee with TIPM-7 are the dominant P0884 platform; the failure mode is early-stage TCM relay contact ar…
- 2007-2014Chrysler 300, Charger, and Grand Cherokee with TIPM-7 are the dominant P0884 platform; the failure mode is early-stage TCM relay contact arcing.
- 2009-2015GM 6L80 sees P0884 from mechatronic internal power circuit cold-solder joint that conducts when warm and opens briefly during thermal cycling.
- 2012-2018Ford F-150 with the 6R80 throws P0884 from underhood fuse box (BJB) internal corrosion at the TCM stab.
- 2011-2016Jeep Wrangler JK with the NAG1 sees P0884 from chronic underhood vibration loosening the TCM connector.
Estimated repair$250 to $1800.
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