Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P1845: Torque Limit Management: Description
The ECM continuously calculates how much engine torque should be commanded for the given engine speed and throttle angle. The ECM then compares this commanded value to a maximum torque value that could be applied at that specific engine speed and throttle angle. DTC P1845 will set if the commanded engine torque for the given engine speed and throttle angle fall outside the maximum allowable limit for longer than 10 minutes. Under no circumstance should the commanded engine torque exceed the maximum allowable engine torque.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.