Subaru Legacy 2002 Service Manual page 783

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Engine (Diagnostics)
BY: DTC P1560 — BACK-UP VOLTAGE CIRCUIT MALFUNCTION —
¼ DTC DETECTING CONDITION:
¼ Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN-45, OPERATION,
Clear Memory Mode.> and Inspection Mode <Ref. to EN-42, OPERATION, Inspection Mode.>.
¼ WIRING DIAGRAM:
No.
1 CHECK INPUT SIGNAL FOR ECM.
1) Turn ignition switch to OFF.
2) Measure voltage between ECM and chas-
sis ground.
Connector & terminal
(B136) No. 9 (+) — Chassis ground (−):
Step
Is the voltage more than 10
V?
EN-266
Check Yes
Repair poor con-
tact in ECM con-
nector.
S078521C27
B2M4718
No
Go to step 2.