Subaru LEGACY 2003 Service Manual page 190

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
7 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in steering angle sensor?
8 CHECK VDCCM.
1) Connect connector to VDCCM.
2) Disconnect connector from steering angle
sensor.
3) Measure resistance between steering
angle sensor connector terminals.
Connector & terminal
(B231) No. 1 — No. 2:
Is the measured value within the specified
range?
9 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in steering angle sensor?
10 CHECK TCM.
1) Connect connector to TCM.
2) Disconnect connector from VDCCM.
3) Measure resistance between steering
angle sensor terminals.
Connector & terminal
(B231) No. 1 — No. 2:
Does the measured value exceed the spec-
ified value?
11 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in steering angle sensor?
12 CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
Are other diagnostic trouble codes being
output?
13 CHECK DIAGNOSTIC TROUBLE CODE.
Is the same diagnostic trouble code as in the
current diagnosis still being output?
14 CHECK AT SYSTEM DIAGNOSTIC TROU-
BLE CODE.
Is the AT system diagnostic trouble code is
same with the specification?
Step Value
There is poor contact.
114 — 126 Ω
There is poor contact.
1 MΩ
There is poor contact.
Other DTC indicated.
Same DTC indicated.
DTC 86
VDC-188
Yes
Replace steering Repair or replace
angle sensor. steering angle
sensor connector.
Go to step 10. Go to step 9.
Replace VDCCM. Repair or replace
<Ref. to VDC-8, VDCCM connec-
VDC Control Mod- tor.
ule (VDCCM).>
Go to step 12. Go to step 11.
Replace TCM. Repair or replace
<Ref. to AT-76, TCM connector.
Transmission Con-
trol Module
(TCM).>
Go to step 13. A temporary poor
contact.
Go to step 14. Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
Replace steering Replace VDCCM.
angle sensor. <Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
No