Subaru 2009 IMPREZA Service Manual page 3409

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
8 CHECK BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Disconnect all connectors (i84, i10, i88, i85
or i50) that are connected to low speed CAN
communication line.
3) Connect the disconnected connectors.
4) Turn the ignition switch to ON.
5) Read the DTC of body integrated unit using
Subaru Select Monitor.
9 CHECK HARNESS.
1) Turn the ignition switch to OFF.
2) Shake the harness used for low speed CAN
communication circuit.
3) Turn the ignition switch to ON.
4) Read the DTC of body integrated unit using
Subaru Select Monitor.
10 CHECK CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect all connectors (i84, i10, i88, i85
or i50) that are connected to low speed CAN
communication line.
Check
Is DTC U1301 a current mal-
function?
Is U1301 current malfunction? Repair or replace
Is there poor contact of connec-
tor terminal?
LAN(diag)-76
Yes No
Replace the body Go to step 9.
integrated unit.
<Ref. to SL-50,
REMOVAL, Body
Integrated Unit.>
Go to step 10.
the harness.
Repair the connec- Temporary poor
tor terminal, or contact occurs.
replace harness.