DTC Matrix

NOTE: Perform the following procedure when using this chart in which the detailed trouble mode corresponds to the trouble status.

Search the trouble mode that corresponds to the vehicle status from the chart.
Perform the repair that corresponds to the trouble mode.

Fig 1: DTC Matrix Chart - Trouble Mode
Courtesy of SUBARU OF AMERICA, INC.

CAN communication circuit open (DTC)

NOTE:

If the module has a limit of DTC memory and the number of DTC occurrence exceeds the limit, older DTCs are preferentially stored.
"Trouble exists" is referred to as the status before performing inspection and repair. "Trouble existed" is referred to as the status before performing DTC clear after repair.

Condition				DTC reading result from each module using Subaru Select Monitor
Control module	Detailed location	Trouble mode	Vehicle status	ECM	CVT	VDC	BIU	A/B	A/C	EPS	KPS	MET	AVN	HL	STR
VDC Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current U0122 Past Same as above	Current U0122 Past Same as above	Communication failure	Current U0122 Past Same as above	Current U0122 Past Same as above	Current None Past None	Current U0122 Past Same as above	Current U0122 Past Same as above	Current U0122 Past Same as above	Current None Past None	Current U0122 Past Same as above	Current None Past None
VDC Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0122	Current None Past U0122	Current None Past U0073 U0100 U0101 U0126 U0140	Current None Past U0122	Current None Past U0122	Current None Past None	Current None Past U0122	Current None Past U0122	Current None Past U0122	Current None Past None	Current None Past U0122	Current None Past None
KPS Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current U0327 Past Same as above	Current None Past None	Current None Past None	Current None Past None	Communication failure	Current U0327 Past Same as above	Current None Past None	Current None Past None	Current None Past None
KPS Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past U0327	Current None Past None	Current None Past None	Current None Past None	Current None Past U0100 U0101 U0122 U0140 U0155	Current None Past U0327	Current None Past None	Current None Past None	Current None Past None
HL Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current U0181 Past Same as above	Current None Past None	Communication failure	Current None Past None
HL Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past U0181	Current None Past None	Current None Past U0122 U0140	Current None Past None
BIU (ECM side) Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current U0155 Past Same as above	Current U0140 U0155 Past Same as above	Current U0140 Past Same as above	Communication failure	Current U0140 U0155 Past Same as above	Current U0140 U0155 Past Same as above	Current U0140 U0155 Past Same as above	Current U0100 U0101 U0122 Past Same as above	Current U0100 U0122 U0128 U0131 U0151 U0164 Past Same as above	Current U0100 U0101 U0122 U0128 U0164 Past Same as above	Current U0122 Past Same as above	Current None Past None
BIU (ECM side) Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0155	Current None Past U0140 U0150	Current None Past U0140	Current None Past U0100 U0101 U0122 U0128 U0131 U0151 U0164	Current None Past U0140 U0155	Current None Past U0140 U0155	Current None Past U0140 U0155	Current None Past U0100 U0101 U0122	Current None Past U0100 U0122 U0128 U0131 U0151 U0164	Current None Past U0100 U0101 U0122 U0128 U0164	Current None Past U0122	Current None Past None
BIU (MET side) Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current U0155 Past Same as above	Current U0140 U0155 Past Same as above	Current U0100 U0101 U0126 Past Same as above	Current U0100 U0101 U0164 U0155 Past Same as above	Communication failure	Communication failure	Communication failure	Current U0100 U0101 U0155 Past Same as above	Communication failure	Communication failure	Current None Past None	Communication failure
BIU (MET side) Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0122 U0140	Current None Past U1235 U0122 U0140	Current None Past U0100 U0101 U0126	Current None Past U0100 U0101 U0164 U0155	Current None Past None	Current None Past U0122 U0140	Current None Past U0122	Current None Past U0100 U0101 U0155	Current None Past U0122 U0140	Current None Past None	Current None Past None	Current None Past None
AVN Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current U0162 Past Same as above	Communication failure	Current None Past None	Current None Past None
AVN Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past U0162	Current None Past U0100 U0101 U0122 U0128 U0155 U0164	Current None Past None	Current None Past None
A/C Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current U0164 Past Same as above	Current None Past None	Current U0164 Past Same as above	Current None Past None	Communication failure	Current None Past None	Current None Past None	Current U0164 Past Same as above	Current U0164 Past Same as above	Current None Past None	Current None Past None
A/C Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past U0164	Current None Past None	Current None Past U0164	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past U0164	Current None Past U0164	Current None Past None	Current None Past None
MET Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current U0155 Past Same as above	Current U0155 Past Same as above	Current None Past None	Current U0155 Past Same as above	Current U0155 Past Same as above	Current None Past None	Current U0155 Past Same as above	Current U0155 Past Same as above	Communication failure	Current None Past None	Current None Past None	Current None Past None
MET Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0155	Current None Past U0155	Current None Past None	Current None Past U0155	Current None Past U0155	Current None Past None	Current None Past U0155	Current None Past U0155	Current None Past U0073 U0100 U0122 U0128 U0131 U0140 U0151 U0162 U0164	Current None Past None	Current None Past None	Current None Past None
STR Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current U0126 Past Same as above	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Communication failure
STR Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past U0126	Current None Past None	Current None Past None	Current None Past None	Current None Past None	Current None Past None
CVT Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current U0101 Past Same as above	Communication failure	Current U0101 Past Same as above	Current U0101 Past Same as above	Current U0101 Past Same as above	Current None Past None	Current None Past None	Current U0101 Past Same as above	Current None Past None	Current None Past None	Current None Past None	Current None Past None
CVT Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0101	Current None Past U0100 U0122 U0140 U0155 U0164	Current None Past U0101	Current None Past U0101	Current None Past U0101	Current None Past None	Current None Past None	Current None Past U0101	Current None Past None	Current None Past None	Current None Past None	Current None Past None
A/B Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current U0151 Past Same as above	Communication failure	Current None Past None	Current None Past None	Current None Past None	Current U0151 Past Same as above	Current None Past None	Current None Past None	Current None Past None
A/B Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past U0151	Current None Past U0100 U0101 U0122 U0140 U0155	Current None Past None	Current None Past None	Current None Past None	Current None Past U0151	Current None Past None	Current None Past None	Current None Past None
EPS Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Current None Past None	Current None Past None	Current None Past None	Current U0131 Past Same as above	Current None Past None	Current None Past None	Communication failure	Current None Past None	Current U0131 Past Same as above	Current None Past None	Current None Past None	Current None Past None
EPS Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past None	Current None Past None	Current None Past None	Current None Past U0131	Current None Past None	Current None Past None	Current None Past U0073 U0100 U0122 U0126 U0155	Current None Past None	Current None Past U0131	Current None Past None	Current None Past None	Current None Past None
ECM Vicinity	Hi side Lo side Both sides	Open circuit	Trouble exists	Communication failure	Current U0100 Past Same as above	Current U0100 Past Same as above	Current U0100 Past Same as above	Current U0100 Past None	Current None Past None	Current U0100 Past Same as above	Current U0100 Past Same as above	Current U0100 Past Same as above	Current None Past None	Current None Past None	Current None Past None
ECM Vicinity	Hi side Lo side Both sides	Open circuit	Trouble existed	Current None Past U0073 U0101 U0122 U0155	Current None Past U0100	Current None Past U0100	Current None Past U0100	Current None Past U0100	Current None Past None	Current None Past U0100	Current None Past U0100	Current None Past U0100	Current None Past None	Current None Past None	Current None Past None

CAN communication circuit open (indicator)
NOTE: "Trouble exists" is referred to as the status before performing inspection and repair. "Trouble existed" is referred to as the status before performing DTC clear after repair.

Fig 2: DTC Chart - CAN Communication Circuit Open (Indicator)
Courtesy of SUBARU OF AMERICA, INC.