Subaru 2009 IMPREZA, Service Manual

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VDC(diag)-28
Warning Light Illumination Pattern
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
C: ABS WARNING LIGHT DOES NOT COME ON
DETECTING CONDITION:
• Defective combination meter
• Defective CAN communication
TROUBLE SYMPTOM:
When the ignition switch is turned to ON (engine OFF), ABS warning light and hill start assist warning light
do not come on.
D: HILL START ASSIST WARNING LIGHT DOES NOT COME ON
For the diagnostic procedures, refer to “ABS WARNING LIGHT DOES NOT COME ON”. <Ref. to VDC(diag)-
28, ABS WARNING LIGHT DOES NOT COME ON, Warning Light Illumination Pattern.>
Step Check Yes No
1 CHECK OTHER LIGHTS TURN ON.
Turn the ignition switch to ON. (engine OFF)
Do other warning lights illumi-
nate? Go to step 2 . Check the combi-
nation meter.
2 READ DTC.
Read the DTC. <Ref. to VDC(diag)-22, Read
Diagnostic Trouble Code (DTC).>
Is DTC displayed? Perform the diag-
nosis according to
DTC. <Ref. to
VDC(diag)-33, List
of Diagnostic Trou-
ble Code (DTC).> Go to step 3 .
3 CHECK LAN SYSTEM.
Perform the diagnosis for LAN system. <Ref. to
LAN(diag)-31, OPERATION, Read Diagnostic
Trouble Code (DTC).>
Is there any fault in LAN sys-
tem? Perform the diag-
nosis according to
DTC for LAN sys-
tem. Go to step 4 .
4 CHECK COMBINATION METER.
Check the combination meter. <Ref. to IDI-4,
INSPECTION, Combination Meter System.>
Is combination meter OK? Replace the
VDCCM only.
<Ref. to VDC-9,
REPLACEMENT,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).> Replace the com-
bination meter.