P1631 – Chevrolet Corvette C5 DTC

Chevrolet Corvette C5 DTC P1631 – Theft Deterrent Start Enable Signal Not Correct

DTC P1631 meaning on Chevrolet Corvette C5

DTC P1631 on a Chevrolet Corvette C5 indicates that the Theft Deterrent Start Enable signal is not correct. This means that there is an issue with the signal that allows the vehicle to start when the correct key is used.

Chevrolet Corvette C5 DTC P1631 symptoms

  • Engine may not start
  • Security light may be illuminated on the dashboard
  • Vehicle may start and then immediately stall

Chevrolet Corvette C5 DTC P1631 causes

  • Defective ignition key
  • Issues with the ignition switch
  • Faulty theft deterrent module
  • Wiring or connection problems in the theft deterrent system

Chevrolet Corvette C5 DTC P1631 seriousness

The seriousness of DTC P1631 on a Chevrolet Corvette C5 lies in the fact that it can prevent the vehicle from starting or cause it to stall unexpectedly. This can be inconvenient and may require immediate attention to resolve the issue.

How to diagnose DTC P1631 on Chevrolet Corvette C5

  1. Use a scan tool to retrieve the DTC codes
  2. Check for any other related DTC codes
  3. Inspect the ignition key for any damage
  4. Check the ignition switch for proper operation
  5. Inspect the theft deterrent module and related wiring for any issues

How to fix DTC P1631 on Chevrolet Corvette C5

  1. Replace the ignition key if damaged
  2. Repair or replace the ignition switch if faulty
  3. Replace the theft deterrent module if necessary
  4. Repair any wiring or connection issues in the theft deterrent system

How to erase DTC P1631 on Chevrolet Corvette C5

  1. Use a scan tool to clear the DTC codes
  2. Ensure that the underlying issue causing the DTC has been resolved
  3. Perform a key relearn procedure if necessary

Recommended tools for Chevrolet Corvette C5 diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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