Subaru LEGACY 2006 Manual page 4235

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AU:DTC C0071 STEERING ANGLE SENSOR COMMUNICATION
DTC DETECTING CONDITION:
Signal does not come from steering angle sensor.
TROUBLE SYMPTOM:
VDC does not operate.
WIRING DIAGRAM:
B231
1 2 3 4
Step
1 CHECK POWER SUPPLY FOR STEERING
ANGLE SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from steering
angle sensor.
3) Turn the ignition switch to ON.
4) Measure the voltage between the steering
angle sensor and chassis ground.
Connector & terminal
(B231) No. 4 (+) — Chassis ground (–):
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
B310 VDCCM & H/U
B355
B352
B234
B231
STEERING
SENSOR
E
B310
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Is the voltage 10 — 15 V?
VDC(diag)-89
*
1 :TERMINAL No. OPTIONAL ARRANGEMENT
AMONG 1, 2, 5 AND 6
*
2 :TERMINAL No. OPTIONAL ARRANGEMENT
AMONG 2, 4, 7 AND 8
ANGLE
B355 B234 B352
1 2 3 4
5 6 7 8
Check Yes
Go to step 4.
VDC00410
No
Go to step 2.