Subaru 2009 IMPREZA Service Manual page 3295

CRUISE CONTROL SYSTEM (DIAGNOSTICS)
B: CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT
TROUBLE SYMPTOM:
Cruise control can be set, but the cruise indicator light and cruise set indicator light do not illuminate.
Step
1 CHECK CRUISE INDICATOR LIGHT AND
CRUISE SET INDICATOR LIGHT.
1) Perform the self-diagnosis of combination
meter. <Ref. to IDI-4, SELF-DIAGNOSIS,
INSPECTION, Combination Meter System.>
2) Check the cruise indicator light and cruise
set indicator light if they illuminate.
2 CHECK DTC OF LAN COMMUNICATION
CIRCUIT.
1) Complete self-diagnosis, and turn the igni-
tion switch to ON again.
2) Using the Subaru Select Monitor to read the
DTC of body integrated unit.
Diagnostics with Phenomenon
Do the cruise indicator light and
cruise set indicator light illumi-
nate?
Is DTC of low-speed CAN dis-
played?
CC(diag)-10
Check Yes
Go to step 2.
Check the LAN
communication cir-
cuit. <Ref. to
LAN(diag)-2, Basic
Diagnostic Proce-
dure.>
No
Replace the meter
case assembly.
<Ref. to IDI-16,
Combination
Meter.>
Replace the ECM.
<Ref. to
FU(H4SO)-44,
Engine Control
Module (ECM).>
<Ref. to
FU(H4DOTC)-52,
Engine Control
Module (ECM).>