Code result
P0888
TCM Power Relay Sense Circuit
High severity
What it means
The TCM power relay reports a sense circuit condition. TCM supply control is impaired.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Feedback wire fault
highOne of the most commonly reported causes for this code — check this first.
Relay contact aged
mediumA plausible cause — test and verify before replacing parts.
Related help
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