2001 SUZUKI GRAND VITARA Vss

8E-6 CRUISE CONTROL SYSTEM
Vehicle speed can not
be set.Actuator cable play maladjusted or actua-
tor cable faultyRefer to “CRUISE CABLE PLAY
INSPECTION AND ADJUSTMENT” in
this section.
Main switch, “COAST/SET”, “RESUME/
ACCEL” and “CANCEL” switch circuits
faultyRefer to “CRUISE MAIN SWITCH,
COAT/SET, RESUME/ACCEL AND
CANCEL SWITCHES CIRCUITS
CHECK” in this section.
VSS circuit faulty Refer to “VSS CIRCUIT CHECK” in this
section.
Stop lamp switch circuit faulty Refer to “STOP LAMP SWITCH (WITH
PEDAL POSITION SWITCH) CIRCUITS
CHECK” in this section.
Transmission range switch circuit (4 A/T
model only) faultyRefer to “TRANSMISSION RANGE
SWITCH CIRCUIT CHECK” in this sec-
tion.
Clutch pedal position switch circuit faulty Refer to “CLUTCH PEDAL POSITION
SWITCH CIRCUIT CHECK” in this sec-
tion.
Cruise control module power and ground
circuits faultyRefer to “CRUISE CONTROL MODULE
POWER AND GROUND CIRCUIT
CHECK” in this section.
Actuator assembly faulty Replace actuator assembly.
Vehicle set speed is
unstable.Actuator cable play maladjusted or actua-
tor cable faultyRefer to “CRUISE CABLE PLAY
INSPECTION AND ADJUSTMENT” in
this section.
VSS circuit faulty Refer to “VSS CIRCUIT CHECK” in this
section.
Throttle valve opening signal circuit faulty Refer to “THROTTLE VALVE OPENING
SIGNAL CIRCUIT CHECK” in this sec-
tion.
Actuator assembly faulty Replace actuator assembly.
Actual vehicle speed
deviates above or
below set speed.Actuator cable play maladjusted or actua-
tor cable faultyRefer to “CRUISE CABLE PLAY
INSPECTION AND ADJUSTMENT” in
this section.
Throttle valve opening signal circuit faulty Refer to “THROTTLE VALVE OPENING
SIGNAL CIRCUIT CHECK” in this sec-
tion.
Actuator assembly faulty Replace actuator assembly.
Acceleration or decel-
eration by using
“RESUME/ACCEL” or
“COAST/SET” switch
is not attained.Main switch, “COAST/SET”, “RESUME/
ACCEL” and “CANCEL” switch circuits
faultyRefer to “CRUISE MAIN SWITCH,
COAT/SET, RESUME/ACCEL AND
CANCEL SWITCHES CIRCUITS
CHECK” in this section.
Actuator assembly faulty Replace actuator assembly.
Cruise control is not
cancelled even when
“CANCEL” switch is
operated.Main switch, “COAST/SET”, “RESUME/
ACCEL” and “CANCEL” switch circuits
faultyRefer to “CRUISE MAIN SWITCH,
COAT/SET, RESUME/ACCEL AND
CANCEL SWITCHES CIRCUITS
CHECK” in this section.
Actuator assembly faulty Replace actuator assembly. Condition Possible Cause Correction

CRUISE CONTROL SYSTEM 8E-11
VSS Circuit Check
Fig. for Step 1Step Action Yes No
1 Vehicle Speed Sensor Circuit Check
1) Disconnect connector from cruise control module with
ignition switch OFF.
2) Check for proper connection to cruise control module at
terminal E132-1.
3) If OK, check for continuity between terminals E132-1 and
E59-2, terminals C52-2 and C20-1 referring to “CRUISE
CONTROL SYSTEM” in Section 8A.
Is check result satisfactory?VSS circuit is OK.“BLU/YEL” cir-
cuit is open.

8E-20 CRUISE CONTROL SYSTEM
Coast/Set, Resume/Accel and Cancel
Switches
These switches are built in the combination switch assembly.
REMOVAL AND INSTALLATION
Refer to “COMBINATION SWITCH” in Section 3C1.
INSPECTION
1) Disable air bag system referring to “DISABLING AIR BAG
SYSTEM” in Section 10B.
2) Disconnect connector (1) of COAST/SET, RESUME/ACCEL
and CANCEL switches.
3) Check for resistance between “SW” and “GND” terminals of
disconnected switch connector (1) under each condition
below.
If check result is not satisfactory, replace combination switch
assembly.
COAST/SET, RESUME/ACCEL and CANSEL switch speci-
fication
All switches released (OFF) : Infinity
CANCEL switch pressed (ON) : About 0 Ω
ΩΩ Ω
COAST/SET switch rotated (ON) : 200 – 240 Ω
ΩΩ Ω
RESUME/ACCEL switch rotated (ON) : 820 – 1000 Ω
ΩΩ Ω
Vehicle Speed Sensor (VSS)
INSPECTION
Refer to Section 6E2.
Transmission Range Switch
Refer to Section 7B1 for inspection, removal, installation and
adjustment.CAUTION:
Never disassemble combination switch assembly. Disas-
sembly will spoil its original functions.