P1740moderate severityPowertrain
Torque Reduction Request Circuit
on 2017 Chevrolet Silverado 1500 5.3L V8 EcoTec3 L83 · RWD
What this code means
A fault was detected in the torque reduction request circuit used during shifts. This can lead to harsh gear changes.
Symptoms
- Harsh or jerky shifting
- Reduced engine power during shifts
- Transmission warning light
Common causes
- Wiring fault in torque request circuit
- Poor connector contact
- Faulty TCM or PCM
- Module communication fault
Diagnostic steps
- Scan for torque management codes
- Inspect torque request circuit wiring
- Check PCM and TCM signal exchange
- Repair wiring or replace faulty module
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P0013
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P0014
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P0015
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