2001 SUZUKI GRAND VITARA Shift

DIFFERENTIAL (FRONT) 7E-5
4WD Control System Circuit Inspection
Voltage check
Check for input or output voltage (voltage between each circuit and body ground) of ECM (PCM) with ECM
(PCM) connector connected and ignition switch turned ON.
TER-
MINALCIRCUITWIRE
COLORNORMAL
VOLTAGECONDITION
E61-19 4WD Indicator lampORN/
BLK10 –14 V Transfer shift lever : 2H or N
0 – 1 V4 seconds after transfer shift lever shifted
to 4H or 4L
C51-1-9Air pump assembly
(Pump motor and release
valve)RED 0 – 1 V Transfer shift lever : 2H or N
10 – 14 V1 seconds after transfer shift lever shifted
to 4H or 4L
C51-3-7 4WD switchBLK/
ORN10 – 14 V Transfer shift lever : 2H or N
0 – 1 V Transfer shift lever : 4H or 4L
C51-3-17 GroundBLK/
ORN 0 – 1 V –
C51-3-18Air pump assembly
(pressure switch)PNK 0 – 1 V Transfer shift lever : 2H or N
10 – 14 V4 seconds after transfer shift lever shifted
to 4H or 4L
1. ECM (PCM) connector terminal arrangement ; viewed from harness side

7E-6 DIFFERENTIAL (FRONT)
4WD Control System Inspection
1) Install special tool to air hose connecting between air pump
assembly and differential (actuator) as shown in figure.
Tighten adjusting screw (2) of special tool as far as it stops.
Close air check side opening by using fuel hose (1) as blind
plug.
Special tool
(A) : 09918-18110
SUZUKI GENUINE PARTS
(B) : 09367-04002
2) Turn ON ignition switch and shift transfer lever from 2H to 4H
range.
3) Check that motor starts running (a sound can be heard)
within 1 second and it stops when gauge of special tool indi-
cates specified pressure value.
Check also for air leakage.
Air pressure specification
(for 4WD control system inspection) :
30.0 – 45.0 kPa (0.30 – 0.45 kg/cm
2, 4.25 - 6.40 psi)
4) Check that pressure value indicated on gauge of special tool
drops as soon as transfer lever is shifted to 2H position.
5) Start motor by shifting transfer lever to 4H position again.
Loosen adjusting screw (2) to lower pressure value on
gauge. Motor should start to run again and stop in about 4
seconds.
6) With the adjusting screw (2) of special tool loosened, shift
transfer shift lever to N or 2H position and then 4L or 4H
position.
Pump motor should stop about 10 seconds after motor starts
to run. NOTE:
Use care not to bend any part of hose.
3. pipe (to air pump assembly)
4. Hose (to differential carrier)
5. Differential housing

8C-2 INSTRUMENTATION/DRIVER INFORMATION
General Description
Combination Meter
1. Tachometer 8. Multifunction indicator light 15. Charge warning light
2. Speedometer 9. Turn signal pilot light (RH) 16. Brake fluid level, parking brake and EBD warning light
3. Fuel level meter 10. AIR BAG warning light 17. POWER indicator light (A/T vehicle only)
4. Engine coolant temperature meter 11. O/D OFF light (A/T vehicle only) 18. CRUISE indicator light
5. Turn signal pilot light (LH) 12. Fasten seat belt light (if equipped) 19. Immobilizer warning light (if equipped)
6. 4WD indicator 13. High beam light 20. Shift position indicator (A/T vehicle, if equipped)
7. ABS warning light 14. Engine oil pressure warning light

CRUISE CONTROL SYSTEM 8E-5
Cancel Conditions
Constant cruising is cancelled under the following conditions.
•Ignition switch is turned OFF.
•Cruise main switch is turned OFF.
•Vehicle speed has slowed down to lower than minimum operating speed (40 km/h (25 mile/h)).
•*Vehicle speed varies beyond cancel speed range (–15 km/h, –9 mile/h) from preset speed.
•*Brake pedal is depressed. (Stop lamp switch is turned ON).
•*Clutch pedal is depressed (Clutch pedal position switch is turned ON) (For M/T vehicle).
•*Selector lever is shifted to N range (Park/Neutral position switch in transmission range switch is turned ON).
•*CANCEL switch is turned ON.
Diagnosis
Diagnosis Table
PCM – Overdrive and TCC
off command signal outputWhen the throttle opening for the vehicle speed exceeds the specified value
during cruise control, the cruise control module sends this signal to PCM. PCM
uses this signal as one of signals to control 4-A/T.
Cruise main switch indicator
lampIn the state with the ignition switch ON and the cruise control system OFF,
pressing this switch once and releasing it will activate the cruise control system
and the cruise control module will cause the indicator lamp to light up.
“CRUISE” indicator lamp It lights up when cruise control (accelerator pedal control) is functioning. Component Function
NOTE:
When constant cruising is cancelled under above any condition with * (asterisk), vehicle speed before
cancellation can be resumed by operating ACCEL RESUME switch, provided that vehicle speed is
higher than 40 km/h (25 miles/h).
Condition Possible Cause Correction
Main switch indicator
lamp fails to light up
or remains ON.Main switch indicator lamp circuit faulty Refer to “CRUISE MAIN SWITCH INDI-
CATOR LAMP CIRCUIT CHECK” in this
section.
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.
“CRUISE” indicator
lamp fails to light up
or remains ON.“CRUISE” indicator lamp circuit Refer to ““CRUISE” INDICATOR LAMP
CIRCUIT CHECK” in this section.
Cruise control module power and ground
circuitsRefer to “CRUISE CONTROL MODULE
POWER AND GROUND CIRCUIT
CHECK” in this section.
Actuator assembly faulty Replace actuator assembly.

CRUISE CONTROL SYSTEM 8E-7
Note on System Circuit Inspection
Refer to “PRECAUTION FOR ELECTRICAL CIRCUIT SERVICE” in Section 0A. “RESUME/ACCEL”
switch fails to resume
preset vehicle speed
after cruise control is
cancelled.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
brake pedal is
depressed.Stop lamp switch circuit faulty Refer to “STOP LAMP SWITCH (WITH
PEDAL POSITION SWITCH) CIRCUITS
CHECK” in this section.
Actuator assembly faulty Replace actuator assembly.
Cruise control is not
cancelled even when
clutch pedal is
depressed.Clutch pedal position switch circuit faulty Refer to “CLUTCH PEDAL POSITION
SWITCH CIRCUIT CHECK” in this Sec-
tion.
Actuator assembly faulty Replace actuator assembly.
Cruise control is not
cancelled even when
selector lever is
shifted to “N” posi-
tion.Transmission range switch circuit (4 A/T
model only) faultyRefer to “TRANSMISSION RANGE
SWITCH CIRCUIT CHECK” in this sec-
tion.
Actuator assembly faulty Replace actuator assembly.
4 speed A/T gear shift-
ing is frequent
between 3rd and over-
drive when driving on
uphill road (Hunting).Throttle valve opening signal circuit faulty Refer to “THROTTLE VALVE OPENING
SIGNAL CIRCUIT CHECK” in this Sec-
tion.
Overdrive and TCC off command signal
circuit faultyRefer to “OVERDRIVE AND TCC OFF
COMMAND SIGNAL CIRCUIT CHECK”
in this section.
Actuator assembly faulty Replace actuator assembly.
4 speed A/T is not
shifted to overdrive
gear even though not
on uphill road.Throttle valve opening signal circuit faulty Refer to “THROTTLE VALVE OPENING
SIGNAL CIRCUIT CHECK” in this sec-
tion.
Overdrive and TCC off command signal
circuit faultyRefer to “OVERDRIVE AND TCC OFF
COMMAND SIGNAL CIRCUIT CHECK”
in this section.
Actuator assembly faulty Replace actuator assembly. Condition Possible Cause Correction