Transmission Fluid Temperature Sensor B Circuit Range/Performance
The second transmission fluid temperature sensor reading is implausible against engine load and ambient temperature. Drift or stuck signal.
Affected components
- Trans fluid temp sensor b
Common causes
- Medium likelihood: Sensor drift after thermal aging
- Medium likelihood: Sensor not seated properly in the fluid path
- Low likelihood: Sensor element aged beyond calibration window
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.