Code result
P2546
Torque Management Request Input Signal A Low
Moderate severity
What it means
Torque management input A reads stuck low — analog short to ground or message stuck at minimum value. The ECM cannot trust the request and falls back to a safe default.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Signal wire shorted to ground
highOne of the most commonly reported causes for this code — check this first.
CAN message stuck at minimum value
mediumA plausible cause — test and verify before replacing parts.
Related help
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