Subaru LEGACY 2006 Manual page 4209

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AE:DTC C0045 AT CONTROL MODULE MALFUNCTION
DTC DETECTING CONDITION:
Defective TCM
TROUBLE SYMPTOM:
• ABS does not operate.
• VDC does not operate.
Step
1 CHECK AT SYSTEM.
1) Start the engine.
2) Check the DTC in AT system.
2 CHECK THE VDCCM&H/U.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the Inspection Mode.
4) Read the DTC.
3 CHECK OTHER DTC DETECTION.
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Check
Is DTC of AT system dis-
played?
Is the same DTC displayed?
Is any other DTC displayed?
VDC(diag)-63
Yes No
Repair the AT sys- Go to step 2.
tem.
Replace the Go to step 3.
VDCCM&H/U.
Perform the diag- It results from a
nosis according to temporary noise
DTC. interference.