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Fault codes › P08xx — Transmission (continued) › P0870

P0870

MODERATE

Transmission Fluid Pressure Sensor/Switch C Circuit

What this code means

Transmission Fluid Pressure Sensor/Switch C Circuit. A continuation of the previous family: transmission controls, solenoids and sensors. Diagnosis nearly always requires the manufacturer's documentation.

How to read this code

  • PPowertrain
  • 0standardised code
  • 8Transmission (continued)
  • 70P0870

The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 8, locates the fault: transmission (continued).

What to do

Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.

Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.

Nearby codes

P0870

System
Powertrain
Fault family
Transmission (continued)
Severity
MODERATE
Origin
Standardised generic code
Read this code on your own car

Klaro shows this code and the others in plain words, alongside live engine data. An OBD2 adapter is required, sold separately.

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