Engine Torque Signal Abnormality
The engine control module detected an abnormal torque signal from the engine.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The engine is trying to tell the computer how much power it's making, and it's getting mixed signals. This can affect performance.
What the computer is actually seeing
The engine control module (ECM) expects a specific torque signal range based on engine load and speed. It detects an abnormal value that deviates beyond the programmed limits, typically outside 0-100 Nm for normal operations.
What a healthy reading looks like
Engine torque should be within 10-20% of expected values based on RPM and load conditions; typically from 50 to 400 Nm, depending on the engine specs.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the wiring and connectors from the engine torque sensor for damage or corrosion. Repair as necessary.
- 2Verify the engine torque sensor for proper output using a multimeter; expected voltage output should be 0.5V to 4.5V depending on torque levels. Replace if readings are outside of these values.
- 3Review the engine control module parameters using diagnostic software to check for any misconfigurations or fault codes. Correct any identified issues.
Common causes
- Faulty engine torque sensor
- Wiring issues (shorts or opens)
- Connector corrosion or damage
- Faulty ECM
- Calibration issue in the engine control system
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It's best to operate at reduced power, as drivability may be impacted. Monitor performance closely.
Will this code come back if I replace the sensor?
If the issue was the sensor, a replacement should clear the code, but check for wiring and ECU issues first.
Why does this code pair with SPN 197?
SPN 197 is often related to transmission torque output; if one signal is abnormal, the other may also be affected.
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