
BE–193
BODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM
ECU Power Source Circuit
CIRCUIT DESCRIPTION
The ECU power source supplies power to the actuator and sensors, etc. Terminal GND and the cruise control ECU case are grounded.
WIRING DIAGRAM
Ignition Switch
J/B No.1 ECU-IG
Cruise Control ECU
4 4
1B ←→ 1J W B-Y 5 9 B-R B
7 4 1J ←→ 1I 14
AM1
2
2
ALT
2
2A
Battery
1 13
1J ←→ 1H W-B GND
13
W-B
N12781
INSPECTION PROCEDURE
1 Check ECU–IG fuse.
J/B No.1
ECU-IG Fuse
N08843
P Remove ECU–IG fuse from J/B No.1.
OK Check continuity of ECU–IG fuse.
OK Continuity
OK
NG Check for short in all the harness and components connected to the ECU–IG fuse (See attached wiring diagram).