Internal Control Module Drive Motor/Generator Engine Speed Sensor Performance

Common symptoms

What you'll notice

• Check the wiring and connections for any damage or loose connections.
• Inspect the drive motor/generator engine speed sensor for any signs of wear or damage and replace if necessary.
• Perform a thorough diagnostic scan to identify any other potential issues related to the drive motor/generator engine speed sensor.
• Check and update the internal control module software if available.
• If all else fails, consider replacing the internal control module itself.

Common causes

Most likely first

1. Faulty engine speed sensor
2. Faulty internal control module
3. Drive motor/generator malfunction
4. Wiring or connector issue with engine speed sensor
5. Powertrain or engine control module software issue

How to diagnose & fix

Work through it in order

1. Check engine light illuminated
2. Loss of power or decreased acceleration
3. Engine stalling or rough idle
4. Difficulty starting the vehicle
5. Increased fuel consumption