Cruise Control Ecu Circuit; Inspection Of Ecu Circuit - Toyota Hilux Surf 1993 Owner's Manual

Connection or
Measure item
Continuity
Data Link
Connector 2
Vacuum pump
Speed sensor
(in combination
meter)
Vacuum switch
Park/Neutral Position
switch (A/T)
Clutch switch (M/T)
Parking brake switch
Body ground
Stop light switch
Resistance
CANCEL switch
RESUMEIACCEL
switch
SET/COAST switch
Stop light switch and
actuator
(release valve)
Actuator
(control valve)
No. 2 solenoid valve
Voltage
GAUGE fuse and in–
dicator light
ENGINE fuse
O/D circuit
ENGINE fuse, main
switch and main
relay
* 1 There is resistance in the circuit.
BODY ELECTRICAL SYSTEM

Cruise Control ECU Circuit

Inspection of ECU Circuit

Disconnect the connector from the ECU and inspect the
connector on the wire harness side as shown below.
Check for Tester Connection
– Cruise Control System
Condition
Short terminals between "Te" and "El"
Released
Constant
Vehicle moving slowly
No vacuum
More than 70 + 30
Vacuum
mmHg
6.69 f 1.18 in. Hg
22.66 + 4.0 kPa
"N" or "P" position
Shift position
, ,.2 , p or
"R" position
Depressed
Clutch pedal position
Released
Pulled
Parking brake lever
position
Released
Constant
Depressed
Brake pedal position
Released
CANCEL switch is
pushed
Released
RESUME/ACCEL
Cruise control switch
switch is pushed
position
Released
SET/COAST switch
is pushed
Released
Depressed
Brake pedal position
Released
Constant
Constant
Ignition switch posi–
tion
LOCK, ACC
Ignition switch posi–
tion
LOCK, ACC
Ignition SW position
LOCK or ACC
Ignition switch ON
and MAIN switch po–
OFF
sition
Ignition switch ON
–and MAIN switch po–
OFF
sition
If circuit is as specified, replace the ECU.
BE–79
Specified valve
Continuity
No continuity
Continuity
1 pulse each 40 cm
approx. (15.75 in.)
Continuity
No continuity
Continuity
No continuity
Continuity
No continuity
Continuity
No continuity
Continuity
Continuity
No continuity
Approx. 4180
No continuity
Approx. 68/
No continuity
Approx. 1980
No continuity
No continuity
Approx. 71/
Approx. 380
less than 1511
Battery positive voltage
No voltage
Battery positive voltage
No voltage
Approx. 5V or more
No voltage
less than 0.3 V
No voltage
Battery positive voltage
No voltage