Subaru Legacy 2003 Service Manual page 3117

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
20 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in connectors between
VDCCM and ABS sensor?
21 CHECK SOURCES OF SIGNAL NOISE.
Is the car telephone or the wireless transmitter
properly installed?
22 CHECK SOURCES OF SIGNAL NOISE.
Are noise sources (such as an antenna)
installed near the sensor harness?
23 CHECK SHIELD CIRCUIT.
1) Connect all connectors.
2) Measure resistance between shield con-
nector and chassis ground.
Connector & terminal
DTC 22 / (F45) No. 10 — Chassis
ground:
DTC 22 / (F2) No. 17 — Chassis ground:
DTC 24 / (F45) No. 10 — Chassis
ground:
DTC 24 / (F2) No. 17 — Chassis ground:
Is the measured value less than the speci-
fied value?
NOTE:
For the DTC 26 and 28, Go to step 25.
24 CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
Is the same diagnostic trouble code as in
the current diagnosis still being output?
25 CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
Are other diagnostic trouble codes being out-
put?
Step Value
There is poor contact.
Installed properly.
Installed.
0.5 Ω
Same pattern.
Other DTC indicated.
VDC-144
Yes
Repair connector. Go to step 21.
Go to step 22. Properly install the
car telephone or
the wireless trans-
mitter.
Install the noise Go to step 23.
sources apart from
the sensor har-
ness.
Go to step 24. Repair shield har-
ness.
Replace VDCCM. Go to step 25.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
Proceed with the A temporary noise
diagnosis corre- interference.
sponding to the
diagnostic trouble
code.
No