Ecm Solenoid Circuit Inspection - Toyota Hilux Surf 1993 Owner's Manual

BE–78
INSPECTION OF ECM SOLENOID CIRCUIT
Start engine (idling).
ECM
Is there battery positive voltage between
terminal 6126 of ECM and ground?
Is there voltage approx. 5V between terminal
7 of CC ECU and ground?
Stop engine.
ECU
Disconnect connector from CC ECU and in–
spect connector on wire harness side as fol–
lows.
INSPECT ECM SOLENOID CIRCUIT
Is there continuity between terminal 9 and
terminal 6126 of ECM?
Is resistance value about 11–15/ between
terminal 9 and ground?
CC ECU faulty.
Replace CC ECU. Then recheck system.
BODY ELECTRICAL SYSTEM
Yes
Yes
Yes
Yes
– Cruise Control System
Short or open circuit in wire harness be–
tween terminal 6/26 of ECM and terminal 9
of CC ECU.
Short or open circuit in wire harness be–
tween terminal 7 of CC ECU and terminal
of EC M .
Open circuit in wire harness between ter–
minal 9 of CC ECU and terminal 6I26 of
ECM.
Open or short circuit in wire harness be–
tween terminal 9 of CC ECU and terminal
of ECM or No. 2 solenoid.