Subaru 2009 IMPREZA Service Manual page 3369

LAN SYSTEM (DIAGNOSTICS)
DTC
U1300 CAN-LS malfunction
U1301 CAN-LS counter abnormal
U1302 CAN-LS bus off
U1311 CAN-LS meter unit data abnormal
U1321 CAN-LS meter no-receive data
B1401 M collation NG
B1402 Immobilizer Key collation NG
B1403 E/G request NG
B1500 Keyless UART com. Malfunction
List of Diagnostic Trouble Code (DTC)
Item Diagnosis content
Open or short in CAN-LS
circuit, on ether side
Communication is unsta-
ble because of low speed
CAN communication error.
• Open or power supply-
output short, GND-output
short occurs in both CAN
line.
• Internal error in each
control module
Received error data from
meter.
Not received data from
meter.
Malfunction related immo-
bilizer
Malfunction related immo-
bilizer
Malfunction related immo-
bilizer
Open or short circuit in
keyless UART circuit
LAN(diag)-36
Reference
<Ref. to LAN(diag)-71, DTC U1300 CAN-LS
MALFUNCTION, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
<Ref. to LAN(diag)-74, DTC U1301 CAN-LS
COUNTER ABNORMAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
<Ref. to LAN(diag)-77, DTC U1302 CAN-LS
BUS OFF, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>
<Ref. to LAN(diag)-80, DTC U1311 CAN-LS
METER UNIT DATA ABNORMAL, Diagnostic
Procedure with Diagnostic Trouble Code
(DTC).>
<Ref. to LAN(diag)-81, DTC U1321 CAN-LS
METER NO-RECEIVE DATA, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
<Ref. to IM(diag)-14, List of Diagnostic Trouble
Code (DTC).>
<Ref. to IM(diag)-14, List of Diagnostic Trouble
Code (DTC).>
<Ref. to IM(diag)-14, List of Diagnostic Trouble
Code (DTC).>
<Ref. to LAN(diag)-83, DTC B1500 KEYLESS
UART COM. MALFUNCTION, Diagnostic Pro-
cedure with Diagnostic Trouble Code (DTC).>