C2191
DTC C2191/91 Vehicle Speed Signal Error (Test Mode DTC)DESCRIPTION
The tire pressure monitor ECU receives speed signals from the combination meter. This DTC is stored upon entering the test mode, and cleared when a vehicle speed signal of 20 km/h (12 mph) is detected for 3 seconds or more. The DTC is output only in the test mode.
WIRING DIAGRAM:
INSPECTION PROCEDURE
NOTICE:
^ When replacing the tire pressure warning ECU, read the IDs stored in the ECU using the intelligent tester and note them down before removal.
^ It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU after the ECU or valve and transmitter has been replaced. Initialization
