2001 SUZUKI GRAND VITARA vss sensor

6F2-2 IGNITION SYSTEM (FOR H27 ENGINE)
General Description
The ignition system is a direct ignition system. It consists of the parts as described below and has an electronic
ignition control system.
•ECM (or PCM)
It detects the engine condition through the signals from the sensors, determines the most suitable ignition
timing and time for electricity to flow to the primary coil and sends a signal to the igniter (in ignition coil
assembly).
•Ignition coil assembly (including an igniter and an ignition coil)
The ignition coil assembly has a built-in igniter and ignition coil which turns ON and OFF the primary current
of the ignition coil according to the signal from ECM (or PCM). When the ignition coil primary current is
turned OFF, a high voltage is induced in the secondary wiring. One ignition coil is in charge of ignition of one
cylinder only.
•Spark plug and noise suppressor
•CMP sensor, TP sensor, ECT sensor, IAT sensor, VSS, knock sensor and MAF sensor
For their details, refer to Section 6E2.
This ignition system does not have a distributor and high-tension cords but each cylinder has an ignition coil
assembly (igniter and ignition coil) and the secondary voltage which occurred in the ignition coil is sent to the
spark plug directly. Also, the signal(s) are sent from the CMP sensor to ECM (or PCM) so as to control each igni-
tion coil independently through the igniter (in ignition coil assembly).
Components
NOTE:
For other components not found in this figure, refer to Section 6E2.
1. Ignition coil assembly (igniter and ignition coil)
2. CMP sensor
3. Noise suppressor
4. ECM (or PCM)
5. Spark plug

7B1-4 AUTOMATIC TRANSMISSION (4 A/T)
Electronic Shift Control System
1. PCM (ECM) 9. Transmission range sensor 17. MIL (“SERVICE ENGINE SOON” lamp)
2. VSS 10. Shift solenoid-A 18. O/D off switch
3. CMP sensor 11. Shift solenoid-B 19. P/N change switch
4. TP sensor 12. TCC solenoid 20. 4WD low switch
5. ECT sensor 13. Data link connector 21. Main relay
6. Stop lamp switch 14. Cruise control module 22. Ignition switch
7. Input shaft speed sensor 15.“POWER” lamp 23. Battery
8. Output shaft speed sensor 16.“O/D OFF” lamp 24. PCM (ECM) connector terminal (viewed from harness side)
5V
5V5V
5V5V
5V
5V 5V C51-1-14
C51-1-12
C51-1-13
C51-3-26
C51-3-12
C51-3-13
C51-3-9
C51-3-2
C51-3-24
C51-1-11
C51-1-10
C51-1-20 C51-1-21
C51-1-23
C51-1-22
C51-1-7
C51-1-6
C51-1-19
C51-1-18
C51-1-28
C51-1-27
C51-1-2
C51-1-1
C51-1-8
E61-13
E61-35
E61-4C51-1-26 E61-31 E61-33 E61-21 E61-20 E61-7
C51-3-20
E61-2
E61-9
C51-3-4
C51-3-15
C51-3-6
C51-3-17
C51-2-7
12V
12V 12V 12V
12V
12V
12V
12V
5V
12V
BLU/YEL
YEL/GRN
YEL/BLU
GRY/YEL
GRY/YEL
GRY/RED
RED/GRN
ORN/BLU
GRY/YEL
BLU/YEL
BLU/GRN
WHT
ORN
ORN/GRN
RED P
R
N
D
2
LORN/BLU
YEL/GRN
GRN/ORN
GRN/BLU
GRN
GRN/RED
GRN/YEL
PPL/RED
PNK/BLU
GRY
PPL/YEL
WHT/BLK
GRY/BLU
YEL/RED
ORN/BLU
WHT
BLU
BLU/BLK
BLU/BLK
BLK/GRN
BLK/ORN
BLK/GRNBLK/WHT ORN/WHT
8
7
23 22
35 346
20 21
335
19
3218
3117
3016 15
2914
284
13
273
12
26112
10
256
5
17 16
26 252
1
98
21 202
1
98
22 21 1
9
247
20
306
19
2918
27 17
2816 15
2614
25 5
13 4
12
24113
10
23 7
19
28654 3
18
2717 16
2615 14
2513
2412
2311
2210 4
15 14
2413
2312
2211 10 9 8 7
213
202
191
18
24
E61 C51-3 C51-1 C51-2 14
13
B+
B+
17
16
15
18
19
20
22
21
23
BB+
IG1
B+
IG2
1 2
3
4
5
7 6
8
IG1
9
10
11
12
BB+
E61-34 GRN/WHT
BB+

INSTRUMENTATION/DRIVER INFORMATION 8C-3
COMBINATION METER INTERNAL CIRCUITS
COMBINATION METER COUPLERS
[A] : Coupler A [B] : Coupler B [C] : Coupler C
1. To Cruise control module (if equipped) GRY/YEL 1. To door switch (drive side) BLK/BLU 1. To ground BLK
2. Blank–2. To transmission range switch
(A/T vehicle only, if equipped) LGRN/BLU 2. To ECM (PCM for A/T vehicle) BRN
3. To ignition switch BLK/WHT 3. To transmission range switch
(A/T vehicle only, if equipped) 2GRN/ORN 3. To ignition switch PPL/RED
4. Blank–4. To transmission range switch
(A/T vehicle only, if equipped) DYEL/GRN 4. To brake fluid level switch RED/BLK
5. To ABS control module (if equipped) BLU/ORN 5. To transmission range switch
(A/T vehicle only, if equipped) NORN/BLU 5. To parking brake switch PPL
6. To PCM (A/T vehicle only) GRY/BLU 6. To transmission range switch
(A/T vehicle only, if equipped) PORN/GRN 6. To seat belt switch GRY/RED
7. To ABS control module (if equipped) BRN 7. To transmission range switch
(A/T vehicle only, if equipped) RRED 7. To generator WHT/RED
8. To VSS BLU/YEL 8. To illumination control module RED/GRN 8. To engine oil pressure switch YEL/BLK
9. To combination switch GRN/RED 9. To PCM (A/T vehicle only) WHT/BLK 9. To combination switch RED/YEL
10. To air bag SDM BLU 10. To ECT sensor YEL/WHT 10. To ignition switch BLU/RED
11. To main fuse WHT/BLU 11. To fuel level gauge BLU/WHT
12. To fuse box WHT 12. To ground BLU/YEL
13. To combination switch RED 13. To combination switch GRN/YEL
14. To immobilizer control module
(if equipped)PPL
15. To ECM (PCM for A/T vehicle) PPL/YEL
16. To ECM (PCM for A/T vehicle) ORN/BLK
P R N D 2 LCRUISEPOWER4WDSPEED
METERTACHO
METERFUEL
METERTEMP.
METER
A-11
A-13 A-8 B-12 B-11 C-8 A-15 A-6 A-1 B-9 A-16 A-14 C-7 C-1 A-10 C-3 C-4 C-5 A-7 A-5 B-8 B-1B-10 C-2 A-12 A-3B-13 B-2 B-3 B-4 B-5 B- B-6 C-9 C-10 A-9ABS circuit EBD circuit Air bag circuit
or ABS or BRAKE
if equipped
or CHECK
ENGINE
NOTE:
Terminal arrangement of coupler viewed from harness side.

CRUISE CONTROL SYSTEM 8E-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
8E
8A
8B
8C
8D
8B
9
10
10A
10B
SECTION 8E
CRUISE CONTROL SYSTEM
CONTENTS
General Description ....................................... 8E-2
Cautions in Servicing ................................... 8E-2
Symbols and Marks ...................................... 8E-2
Abbreviations ............................................... 8E-2
Wiring Color Symbols ................................... 8E-2
Joint Connector ............................................ 8E-2
Fuse Box and Relay ..................................... 8E-2
Power Supply Diagram ................................ 8E-2
Cruise Control System ................................. 8E-3
Cruise control system circuit .................... 8E-3
Components and functions....................... 8E-4
Cancel Conditions .................................... 8E-5
Diagnosis ........................................................ 8E-5
Diagnosis Table ........................................... 8E-5
Note on System Circuit Inspection ............... 8E-7
Cruise Main Switch Indicator Lamp
Circuit Check ................................................ 8E-8
“Cruise” Indicator Lamp Circuit Check ......... 8E-9
Cruise Main Switch, Coast/Set,
Resume/Accel and Cancel Switches
Circuits Check ............................................ 8E-10
VSS Circuit Check ...................................... 8E-11
Stop Lamp Switch (with Pedal Position
Switch) Circuits Check ............................... 8E-12Transmission Range Switch Circuit Check 8E-13
Clutch Pedal Position Switch Circuit Check 8E-14
Throttle Valve Opening Signal Circuit
Check ......................................................... 8E-15
Overdrive and TCC off Command Signal
Circuit Check.............................................. 8E-16
Cruise Control Module Power and Ground
Circuits Check ............................................ 8E-16
Cruise Control Module and Its Circuit
Inspection................................................... 8E-17
Cruise Cable Play Inspection and
Adjustment ................................................. 8E-19
On-Vehicle Service ...................................... 8E-19
Cruise Main Switch .................................... 8E-19
Coast/Set, Resume/Accel and Cancel
Switches..................................................... 8E-20
Vehicle Speed Sensor (VSS) ..................... 8E-20
Transmission Range Switch ...................... 8E-20
Clutch Pedal Position (CPP) Switch .......... 8E-21
Stop Lamp Switch (with Pedal Position
Switch) ....................................................... 8E-22
Cruise Control Actuator Assembly
(with Control Module) ................................. 8E-23
Cruise Cable .............................................. 8E-24

WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

8E-4 CRUISE CONTROL SYSTEM
Components and functions
Component Function
Cruise control actuator
assembly with control mod-
uleCruise control module:
Executes centralized control by means of a microcomputer over all functions
including setting a constant speed, resuming it, setting coast, limiting minimum
speed and cancelling cruise control.
Cruise control actuator (stepping motor & clutch) :
Actuates accelerator pedal through cruise cable and arm according to a signal
from cruise control module to control vehicle speed.
Cruise main switch This switch has a momentary contact type button to turn the cruise control
system ON and OFF.
SET COAST switch When this switch is rotated (ON) and then released (OFF) while vehicle is run-
ning at a speed 40 km/h (25 mile/h) or higher, vehicle speed at that OFF
moment is stored in memory and it is maintained (constant cruising).
Rotating this switch (ON) continuously during constant cruising keeps slowing
down vehicle speed as long as it is ON. When it is released (OFF), vehicle
speed at that moment is stored in memory and vehicle starts constant cruising.
ACCEL RESUME switch When this switch is rotated (ON) during constant cruising, vehicle speed keeps
increasing as long as it is ON. When it is released (OFF), vehicle speed at that
moment is stored in memory and vehicle starts constant cruising. If vehicle
speed is higher than 40 km/h (25 mile/h) after cruise control is cancelled, turn-
ing this switch ON momentarily will resume the speed at which vehicle was run-
ning before cancellation.
CANCEL switch When this switch is pressed (ON), cruise control (accelerator pedal control) is
cancelled.
Vehicle speed sensor (VSS) The vehicle speed sensor (VSS) is mounted on the transfer or transmission.
The VSS converts vehicle speed into pulse signal and send it to the cruise con-
trol module.
Stop lamp switch The stop lamp switch has 2 contact points. One contact point closes when the
brake pedal is depressed to light the stop lamp and provides a voltage signal to
the cruise control module. This signal, when inputted cancels cruise control
(sets the accelerator pedal free).
The other contact point (brake pedal position switch) opens when the brake
pedal is depressed, to shut off the power to the magnetic clutch in the actuator,
thereby cancelling cruise control (setting the accelerator pedal free).
This switch is installed to cancel cruise control (constant cruising) without fail.
Clutch pedal position switch
(M/T vehicle only)When the clutch pedal is depressed, the clutch pedal position switch closes and
provides a ground signal to cruise control module.
The cruise control module cancels cruise control (accelerator pedal control)
when this signal is inputted.
Transmission range switch
(Park/Neutral position switch)
(A/T vehicle only)When the selector lever is places in either “P” or “N” position, the transmission
range switch closes and provides a ground signal to cruise control module. The
cruise control module cancels cruise control (accelerator pedal control) when
this signal is inputted.
PCM – Throttle opening sig-
nal (4 A/T vehicle only)Throttle opening signal is inputted from PCM.
From this signal, the cruise control module detects the throttle opening and
uses it as one of the factors to output the overdrive and TCC OFF command sig-
nal to PCM.

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.