Regenerative Braking Torque Sensor Fault
2007-2007 Toyota Highlander 2.4L I4
The 2007 Toyota Highlander is equipped with a 2.4L inline-4 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
Common Questions
What does code C0155 mean on a 2007-2007 Toyota Highlander?
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 Toyota Highlander?
Common symptoms of C0155 include: Regen braking warning, Reduced energy recovery, Braking force inconsistent, Hybrid efficiency reduced.
What causes C0155 on a 2007-2007 Toyota Highlander?
Common causes of C0155 include: Faulty regen torque sensor, Sensor wiring damaged, Motor-generator feedback fault, Sensor connector corroded.
Last updated: March 2026
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