Diagnosis Procedure
NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.
1.PERFORM SELF DIAGNOSTIC RESULT
Perform "SELF DIAGNOSTIC RESULT".
Is DTC "U1000" detected?
YES >> Malfunction in CAN communication system. Refer to LAN "Trouble Diagnosis Flow Chart".
NO >> GO TO 2
2.CHECK COMBINATION METER
Check combination meter operation. Refer to MWI "CONSULT Function" (type B) or MWI "CONSULT Function" (type A).
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation" or BCS "Removal and Installation".
NO >> Replace combination meter. Refer to MWI "Removal and Installation" (type B) or MWI "Removal and Installation" (type A).

Diagnosis Procedure 1.INSPECT BCM CONNECTOR Turn ignition switch OFF. Disconnect BCM connectors. Check terminals for damage or loose connections. Is the inspection result normal? YES > ...
Shift change control
Shift change control : system diagram
Shift change control : system description
The clutch is controlled with the optimum timing and oil pressure by the
engine speed, engine torque information,
etc.
Shift Change System Diagram
*1: Full phase real-time feedback control monitors m ...
P0977 Shift solenoid B
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0977
Shift Solenoid B Control Circuit
High
The following diagnosis conditions
are met, and the TCM low
clutch solenoid valve current
monitor reading is 200 ...