Regenerative Braking Torque Sensor Fault
2021-2021 Chrysler 300 6.4L V8 SRT
The 2021 Chrysler 300 is equipped with a 6.4L V8 engine. Below you'll find detailed c0155 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The torque sensor that monitors regenerative braking output is reporting invalid data.
Symptoms
- Regen braking warning
- Reduced energy recovery
- Braking force inconsistent
- Hybrid efficiency reduced
Common Causes
- Faulty regen torque sensor
- Sensor wiring damaged
- Motor-generator feedback fault
- Sensor connector corroded
Diagnostic Steps
- Read regen torque sensor data during braking
- Compare motor-generator actual torque to commanded
- Inspect sensor wiring
- Check sensor connector
- Test sensor through full range
Repair Notes
Replace regen braking torque sensor. Recalibrate after replacement.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0155 on Other Vehicles
Chrysler 200
2011-2011 2.4L I4 Tigershark
Chrysler 200
2011-2011 3.6L V6 Pentastar
Chrysler 200
2012-2012 2.4L I4 Tigershark
Chrysler 200
2012-2012 3.6L V6 Pentastar
Chrysler 200
2013-2013 2.4L I4 Tigershark
Chrysler 200
2013-2013 3.6L V6 Pentastar
Chrysler 200
2014-2014 2.4L I4 Tigershark
Chrysler 200
2014-2014 3.6L V6 Pentastar
Common Questions
What does code C0155 mean on a 2021-2021 Chrysler 300?
C0155 stands for "Regenerative Braking Torque Sensor Fault". The torque sensor that monitors regenerative braking output is reporting invalid data.
What are the symptoms of C0155 on a Chrysler 300?
Common symptoms of C0155 include: Regen braking warning, Reduced energy recovery, Braking force inconsistent, Hybrid efficiency reduced.
What causes C0155 on a 2021-2021 Chrysler 300?
Common causes of C0155 include: Faulty regen torque sensor, Sensor wiring damaged, Motor-generator feedback fault, Sensor connector corroded.
Last updated: March 2026