7AT RE7R01H

U0101 LOST COMM (TCM)

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. CHECK DTC DETECTION

With CONSULT
1.Turn ignition switch ON and wait for 2 seconds or more.
2.Check DTC.
Is "U0101" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK DTC OF HPCM

With CONSULT
1.Turn ignition switch ON.
2.Perform "Self Diagnostic Results" in "EV/HEV".
Is "U0101" detected?
YES- Replace the A/T assembly due to malfunction in the TCM. Removal and Installation.
NO- Replace the sub electric oil pump inverter. Service and Repair.