C2171

DTC C2171/71 Transmitter ID not Registered in Main Mode

DTC C2172/72 Transmitter ID not Registered in 2nd Mode

DESCRIPTION
The IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU. When the ECU detects that an ID is not one of the registered IDs, or cannot receive an ID signal, a DTC is output.

C2171/71-C2172/72:

INSPECTION PROCEDURE

NOTICE:
^ When replacing the tire pressure warning ECU, read the IDs stored in the old 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 and/or valve and transmitter has been replaced. Initialization

Step 1:

Steps 2-4(Part 1):

Step 4(Part 2):