KlaroP0891
MODERATETCM Power Relay Sense Circuit High
What this code means
TCM Power Relay Sense Circuit High. 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)
- 91P0891
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.