Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 780
LAN(diag)-29
Clear Memory Mode
LAN SYSTEM (DIAGNOSTICS)
8. Clear Memory Mode
A: OPERATION
For details concerning DTC clear operation, refer to
“Subaru Select Monitor”. <Ref. to LAN(diag)-22,
LAN(diag)-30
Read Current Data
LAN SYSTEM (DIAGNOSTICS)
9. Read Current Data
A: OPERATION
1) On «Main Menu» display, select {Each System
Check}.
2) On «System Selection Menu» display, select {In-
teg. unit mode}.
3) On «Integ. unit mode failure diag» display, select
{Current Data Display & Save}.
4) Using the scroll key, scroll the display screen up
or down until the desired data is shown.
LAN(diag)-31
User Customizing
LAN SYSTEM (DIAGNOSTICS)
10.User Customizing
A: OPERATION
For detailed procedures of User Customizing, refer
to “Subaru Select Monitor”. <Ref. to LAN(diag)-23,
LAN(diag)-32
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
11.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC
Item
Content of diagnosis
Note
B1100
Integ. Unit System Error
Memory read out error in
body integrated unit
B1101
BATT p/supply malfunction cont.
• Open or short in battery
power supply control cir-
cuit
• Voltage malfunction
caused by poor contact
B1102
BATT p/supply malfunction backup • Battery power supply
backup circuit is open or
shorted.
• Voltage malfunction
caused by poor contact
B1103
Ignition power failure
• IGN power supply circuit
is open or shorted.
• Voltage malfunction
caused by poor contact
B1104
ACC power failure
• ACC power supply cir-
cuit is open or shorted.
• Voltage malfunction
caused by poor contact
U1201
CAN-HS counter abnormal
Communication is unsta-
ble because of high speed
CAN communication error.
U1202
CAN-HS bus off
Integrated unit communi-
cation is shut down
because of high speed
CAN communication error.
U1211
CAN-HS ECM data abnormal
Received error data from
ECM.
U1213
CAN-HS VDC/ABS data abnormal
Received error data from
VDC/ABS module.
U1216
High-Speed CAN (DCCD) Data
Error
Received error data from
DCCD CM.
U1221
CAN-HS ECM no-receive data
Not received data from
ECM.
U1223
CAN-HS VDC/ABS no-receive
data
Not received data from
VDC/ABS CM.
U1226
High-Speed CAN (DCCD) Data is
Not Received
Not received data from
DCCD CM.
U1300
CAN-LS malfunction
CAN-LS circuit is open or
shorted.
U1301
CAN-LS counter abnormal
Communication is unsta-
ble because of low speed
CAN communication error.
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