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2004 CADILLAC SRX
3.6L V6•AWD•AUTOMATIC•gas
7 active safety recalls on this vehicle — view recalls
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Repairs0Labor958Torque4237Fluid18DTC2122Battery2Maintenance0Recalls7
C0155moderate severityChassis

Regenerative Braking Torque Sensor Fault

on 2004 Cadillac SRX 3.6L V6 · AWD

What this code means

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

  1. Read regen torque sensor data during braking
  2. Compare motor-generator actual torque to commanded
  3. Inspect sensor wiring
  4. Check sensor connector
  5. Test sensor through full range

Repair notes

Replace regen braking torque sensor. Recalibrate after replacement.

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