DTC 44 Transmitter 4 Function Code Abnormal: Trouble Symptom

WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

Tire pressure warning light blinks 25 times and then illuminates.

DIAGNOSTIC CHART

Step	Check	Yes	No
1 START FL TRANSMITTER. Connect the Subaru Select Monitor and then turn the ignition switch to ON. Select Transmitter ID. <Ref. to DISPLAY TRANSMITTER (ID). , OPERATION, Subaru Select Monitor. > Use the transmitter registration tool and transmit the ID from the FL transmitter to check "Latest Received ID".	Is "Latest Received ID" updated?	Go to step 2.	Replace front left transmitter.
2 CHECK FL TRANSMITTER ID. Check the ID displayed in the updated ID display and the tire 1 registered ID.	Are the two IDs same?	Go to step 3.	Record the received ID update as the FL transmitter. Go to step 3 .
3 START FR TRANSMITTER. Use the transmitter registration tool and transmit the ID from the FR transmitter to check "Latest Received ID".	Is "Latest Received ID" updated?	Go to step 4.	Replace the front right transmitter.
4 CHECK FR TRANSMITTER ID. Check the ID displayed in the updated ID display and the tire 2 registered ID.	Are the two IDs same?	Go to step 5.	Record the received ID update as the FR transmitter. Go to step 5 .
5 START RR TRANSMITTER. Use the transmitter registration tool and transmit the ID from the RR transmitter to check "Latest Received ID".	Is "Latest Received ID" updated?	Go to step 6.	Replace the RR transmitter.
6 CHECK RR TRANSMITTER ID. Check the ID displayed in the updated ID display and the tire 3 registered ID.	Are the two IDs same?	Go to step 7.	Record the received ID update as the RR transmitter. Go to step 7 .
7 START RL TRANSMITTER. Use the transmitter registration tool and transmit the ID from the RL transmitter to check "Latest Received ID".	Is "Latest Received ID" updated?	Go to step 8.	Replace the RL transmitter.
8 CHECK RL TRANSMITTER ID. Check the ID displayed in the updated ID display and the tire 4 registered ID.	Are the two IDs same?	Go to step 9.	Record the received ID update as the RL transmitter. Go to step 9 .
9 CHECK MALFUNCTION TRANSMITTER.	Is ID recorded by this procedure?	Go to step 10.	Check again. Go to step 1.
10 CHECK MALFUNCTION TRANSMITTER. Check the registered ID of the transmitter indicated by DTC.	Is there checked ID in the record?	Replace the transmitter of the recorded position.	Replace the transmitter showing the latest ID that is not included in the registered IDs.