Subaru 2009 IMPREZA, Service Manual

Page: 3370 / 3619

LAN(diag)-37
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
1. DTC TABLE
NOTE:
When more than two DTC codes are recorded, referring to their combination will make it easy to identify the
possible cause. Refer to the list for typical examples.
DTC to Check
Diagnostic Code that was displayed.
Probable cause
Body inte-
grated unit
ECM TCM
VDC/ABS
CM
B1100 <Ref. to LAN(diag)-
38, DTC B1100 INTEG.
UNIT SYSTEM ERROR,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).> B1100
— — —
There could be a problem in the body inte-
grated unit.
U1221 <Ref. to LAN(diag)-
64, DTC U1221 CAN-HS
ECM NO-RECEIVE DATA,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).> U1221
—
P1718 C0057 It is possible that the ECM is faulty.
U1222 <Ref. to LAN(diag)-
67, DTC U1222 CAN-HS
TCM NO-RECEIVE DATA,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).> U1222 P0600
—
C0057 It is possible that the TCM is faulty.
U1223 <Ref. to LAN(diag)-
69, DTC U1223 CAN-HS
VDC/ABS NO-RECEIVE
DATA, Diagnostic Proce-
dure with Diagnostic Trou-
ble Code (DTC).> U1223 P0600 P1718
—
It is possible that the VDC/ABS CM is
faulty.
U1321 <Ref. to LAN(diag)-
81, DTC U1321 CAN-LS
METER NO-RECEIVE
DATA, Diagnostic Proce-
dure with Diagnostic Trou-
ble Code (DTC).> U1321
— — —
It is possible that the combination meter is
faulty.
B1500 <Ref. to LAN(diag)-
83, DTC B1500 KEYLESS
UART COM. MALFUNC-
TION, Diagnostic Proce-
dure with Diagnostic
Trouble Code (DTC).> B1500
— — —
It's possible that there is an internal prob-
lem in the keyless entry control module, or
a open circuit in the communication line.