Subaru Legacy 2002 Service Manual page 2487

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
VDC (Diagnostics)
DTC No.
49 Abnormal engine speed signal
51 Abnormal valve relay
52 Abnormal motor and/or motor relay
71 Abnormal steering angle sensor
72 Abnormal yaw rate sensor
73 Abnormal lateral G sensor
74 Abnormal pressure sensor
If any of the following multiple diagnostic trouble codes (DTCs) are present in memory, check the area cor-
responding to the first diagnostic trouble code (DTC). If no problem is detected, check the areas corre-
sponding to the other diagnostic trouble codes (DTCs) in order of their appearance.
Combination of
DTC No.
(F87) — No. 78, 68 or 69 lead circuit is
46, 74
shorted to ground or battery.
44, 71 (F87) — No. 83 or 81 lead circuit is open.
51, 48, 71 (F87) — No. 27 lead circuit is open.
71, 51, 44 (F87) — No. 27 lead circuit is open.
72, 73 (F87) — No. 63 lead circuit is open.
Contents of diagnosis
Problem area
<Ref. to VDC-102, DTC 49 ABNORMAL ENGINE SPEED
SIGNAL, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-104, DTC 51 ABNORMAL VALVE RELAY,
Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-112, DTC 52 ABNORMAL MOTOR AND/OR
MOTOR RELAY, Diagnostics Chart with Diagnosis Connec-
tor.>
<Ref. to VDC-118, DTC 71 ABNORMAL STEERING ANGLE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-122, DTC 72 ABNORMAL YAW RATE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-126, DTC 73 ABNORMAL LATERAL G
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-130, DTC 74 ABNORMAL PRESSURE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-92, DTC 46 ABNORMAL VOLTAGE OF 5 V
POWER SUPPLY, Diagnostics Chart with Diagnosis Connec-
tor.>
<Ref. to VDC-118, DTC 71 ABNORMAL STEERING ANGLE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-118, DTC 71 ABNORMAL STEERING ANGLE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-118, DTC 71 ABNORMAL STEERING ANGLE
SENSOR, Diagnostics Chart with Diagnosis Connector.>
<Ref. to VDC-126, DTC 73 ABNORMAL LATERAL G
SENSOR, Diagnostics Chart with Diagnosis Connector.>
VDC-28
Index No.
Index No.