Subaru LEGACY 2003 Service Manual page 227

DIAGNOSTICS CHART WITH SELECT MONITOR
Step
1 CHECK CONTACT POINT OF MOTOR RE-
LAY.
1) Turn ignition switch to OFF.
2) Remove motor relay from relay box.
3) Connect battery to motor relay terminals
No. 85 and No. 86.
4) Measure resistance between motor relay
terminals.
Terminals
No. 30 — No. 87:
Is the measured value less than the speci-
fied value?
2 CHECK CONTACT POINT OF MOTOR RE-
LAY.
1) Disconnect battery from motor relay termi-
nals.
2) Measure resistance between motor relay
terminals.
Terminals
No. 30 — No. 87:
Does the measured value exceed the spec-
ified value?
3 CHECK INPUT VOLTAGE OF RELAY BOX.
1) Disconnect connector (F89) from relay box.
2) Disconnect connector from VDCCM.
3) Turn ignition switch to ON.
4) Measure voltage between relay box con-
nector and chassis ground.
Connector & terminal
(F89) No. 2 (+) — Chassis ground ( − − − − ):
Is the measured value within the specified
range?
4 CHECK INPUT VOLTAGE OF MOTOR RE-
LAY.
1) Turn ignition switch to OFF.
2) Connect connector (F89) to relay box.
3) Turn ignition switch to ON.
4) Measure voltage between relay box and
chassis ground.
Connector & terminal
(VDC7) No. 87 (+) — Chassis ground ( − − − −
):
Is the measured value within the specified
range?
5 CHECK CONDITION OF MOTOR GROUND.
Tightening torque:
33 ± ± ± ± 10 N·m (3.3 ± ± ± ± 1.0 kgf-m, 24 ± ± ± ± 7 ft-lb)
Is the motor ground terminal tightly clamped?
Value
0.5 Ω
1 MΩ
10 — 15 V
10 — 15 V
Clamped securely.
VDC-225
VDC (DIAGNOSTICS)
Yes
Go to step 2. Replace motor
relay.
Go to step 3. Replace motor
relay.
Go to step 4. Repair harness/
connector
between battery
and relay box, and
check fuse SBF
holder.
Go to step 5. Replace relay box.
Go to step 6. Tighten the clamp
of motor ground
terminal.
No