1999 SUZUKI GRAND VITARA Wire harness

YH4
GRAND
VITARA
5E1-16 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
-1. Main fuse
-2. Ignition switch
-3. Circuit fuse for IG
-4. ªABSº warning lamp
-5. ABS hydraulic unit / control
module assembly
5-1. Fail-safe relay
5-2. To solenoid valves and
pump motor relay
(ABS hydraulic unit)
-6. Diagnosis connector
(Black connector)
6-1. Diag. switch terminal
6-2. Diag. ground terminal
-7. Combination meter
7-1. ABS lamp driver module
-8. ABS hydraulic unit/
control module connector
of harness
-9. EBD warning lamp
(Brake warning lamp)
-10. Parking brake switch
-11. Brake fluid level switch
TABLE ± A ªABSº WARNING LAMP CIRCUIT CHECK ± LAMP DOES NOT
COME ªONº AT IGNITION SWITCH ON
CIRCUIT DESCRIPTION
Operation (ON / OFF) of the ªABSº warning lamp is controlled by the ABS control module and ABS lamp driver mod-
ule.
If the Antilock brake system is in good condition, the ABS control module turns the ªABSº warning lamp ON at the
ignition switch ON, keeps it ON for 2 seconds only and then turns it OFF. If an abnormality in the system is detected,
the lamp is turned ON by ABS control module. Also, it is turned ON by ABS lamp driver module when the connector
of the ABS control module was disconnected.
INSPECTION
STEPACTIONYESNO
11) Turn ignition switch ON.
Do other warning lamp come ON?Go to step 2.Go to step 4.
21) Disconnect ABS hydraulic unit / control module
connector.
Does ABS warning lamp light with ignition switch ON?Replace ABS
hydraulic unit / control
module assembly.Go to step 3.
31) Remove combination meter.
Is bulb of ABS warning lamp in good condition?ªBl / Oº circuit shorted
to ground. If OK,
replace ABS
warning circuit (lamp
driver module).Replace bulb.
4Is IG fuse in good condition?Open in ªB / Wº wire to
combination meter or
poor connection.Repair and
replace.

YH4
GRAND
VITARA
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-19
-1. ªABSº warning lamp
-2. ABS hydraulic unit / control
module assembly
-3. Diagnosis connector
3-1. Diag. switch terminal
3-2. Diag. ground terminal
-4. ABS hydraulic unit/
control module connector
of harness
1. ABS hydraulic
unit / control
module connector
TABLE ± D CODE (DTC) IS NOT OUTPUTTED EVEN WITH DIAG. SWITCH
TERMINAL CONNECTED TO GROUND
CIRCUIT DESCRIPTION
When the diag. switch terminal is connected to the ground with the ignition switch turned ON, the ABS control mod-
ule outputs a diagnostic trouble code by flashing ªABSº warning lamp.
INSPECTION
STEPACTIONYESNO
1Is it shorted diag. switch terminal and ground terminal by
service wire properly?Go to step 2.Connect service
wire securely.
21) Disconnect service wire.
2) Disconnect ABS hydraulic unit / control module
connector. (See Fig. 1)
3) Measure resistance between diag. switch terminal
and connector terminal ªA8º.
Is it infinite (
)?ªPº circuit open.Go to step 3.
31) Measure resistance between ground terminal of
monitor connector and body ground.
Is continuity indicated?Go to step 4.ªBº circuit open or
poor connection.
41) Check for proper connection to ABS hydraulic
unit / control module at terminal ªA8º and ªA10º.
2) If OK, then check ªABSº warning lamp circuit
referring to ªTABLE A, B and Cº.
Is it in good condition?Substitute a
known-good ABS
hydraulic unit /
control module
assembly and
recheck.Repair ªABSº
warning lamp
circuit.
Fig. 1

YH4
GRAND
VITARA
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-35
FORWARD
1. Front wheel speed
sensor connector
2. Headlight assembly
1. Front wheel speed sensor
2. Bolt
REMOVAL
1) Disconnect negative cable at battery.
2) Hoist vehicle and remove wheel.
3) Disconnect front wheel speed sensor connector.
4) Remove harness clamp bolts and remove front wheel speed
sensor from knuckle.
CAUTION:

Do not pull wire harness when removing front wheel
speed sensor.

Do not cause damage to surface of front wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.
SENSOR INSPECTION

Check sensor for damage.

Check sensor for resistance.
Resistance between terminals: 1.2 ± 1.6 k
at 20C (68F)
Resistance between terminal and sensor body: 1 M
or more
If any faulty is found, replace.
SENSOR ROTOR INSPECTION

Check rotor for being missing, damaged or deformed.

Turn drive shaft and check if rotor rotation is free from eccentricity
and looseness.

Check that no foreign material is attached.
If any faulty is found, repair or replace. Refer to WHEEL HUB RE-
MOVAL and INSTALLATION in Section 3D.

YH4
GRAND
VITARA
5E1-36 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
1. Front wheel speed sensor
2. Bolt
INSTALLATION
1) Check that no foreign material is attached to sensor and rotor.
2) Install it by reversing removal procedure.
CAUTION:

Do not pull wire harness or twist more than necessary
when installing front wheel speed sensor.

Fit harness grommet to inner fender securely.
Tightening Torque
(a): 10 N
.m (1.0 kg-m, 7.5 lb-ft)
(b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
3) Check that there is no clearance between sensor and knuckle.
FRONT SENSOR ROTOR
REMOVAL
Remove front sensor rotor referring to WHEEL HUB REMOVAL in
Section 3D.
INSTALLATION
CAUTION:
Don't reuse front sensor rotor removed from front wheel
hub because of it for being deformed.
Install new front sensor rotor referring to WHEEL HUB INSTALLA-
TION in Section 3D.

YH4
GRAND
VITARA
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-37
1. Rear wheel speed sensor
2. Sensor rotor
3. Rear axle housing
1. Rear wheel speed
sensor harness
2. Connector
1. Sensor bolt
2. Clamps
REAR WHEEL SPEED SENSOR
OUTPUT VOLTAGE INSPECTION
Check in the same procedure as that used of front wheel speed
sensor check.
Output AC voltage at 2 / 3 to
one rotation per second (25 ± 38 Hz): 106 mV or more
Reference
When using oscilloscope,
peak-to-peak voltage at 2 / 3 to
one rotation per second (25 ± 38 Hz): 150 mV or more
REMOVAL
1) Disconnect negative cable at battery.
2) Hoist vehicle.
3) Disconnect rear wheel speed sensor connector and detach wire
harness from vehicle body and rear axle.
4) Remove harness clamps and remove rear wheel speed sensor
from rear axle.
CAUTION:

Do not pull wire harness when removing rear wheel
speed sensor.

Do not cause damage to surface of rear wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.

YH4
GRAND
VITARA
5E1-38 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
1. Clamps
2. Sensor bolt
SENSOR INSPECTION

Check sensor (pole piece) for damage or bent.

Check sensor for resistance.
Resistance between
terminals : 1.2 ± 1.6 k
at 20C, 68F
Resistance between
terminal and sensor body: 1 M
or more
If any faulty is found, replace.
SENSOR ROTOR INSPECTION

Check rotor serration (teeth) for being missing, damaged or de-
formed.

Turn wheel and check if rotor rotation is free from eccentricity and
looseness.

Check that no foreign material is attached.
If any faulty is found, repair or replace.
INSTALLATION
1) Check that no foreign material is attached to sensor and rotor.
2) Install it by reversing removal procedure.
Tightening Torque
(a): 21 N
.m (2.1 kg-m, 15.0 lb-ft)
CAUTION:
Do not pull wire harness or twist more than necessary
when installing rear wheel speed sensor.
3) Check that there is no clearance between sensor and knuckle.

YH4
GRAND
VITARA
7B1
AUTOMATIC TRANSMISSION (4 A / T) 7B1-1
GENERAL DESCRIPTION7B1- 3 . . . . . . . . . . . . . .
CLUTCH / BRAKE FUNCTIONS 7B1- 5. . . . . . . . .
TABLE OF COMPONENT OPERATION 7B1- 6. . .
ELECTRONIC SHIFT CONTROL
SYSTEM 7B1- 7. . . . . . . . . . . . . . . . . . . . . . . . . . .
AUTOMATIC TRANSMISSION
DIAGNOSIS7B1-17 . . . . . . . . . . . . . . . . . . . . . . . . . .
PRECAUTION IN DIAGNOSING
TROUBLE 7B1-20. . . . . . . . . . . . . . . . . . . . . . . . . .
AUTOMATIC TRANSMISSION
DIAGNOSTIC FLOW TABLE 7B1-21. . . . . . . . . .
Customer Problem Inspection Form 7B1-23. . .
Malfunction Indicator lamp (MIL)
Check 7B1-24. . . . . . . . . . . . . . . . . . . . . . . . . . .
ªO / D OFFº Lamp Check 7B1-24. . . . . . . . . . . . .
ªPOWERº Lamp Check 7B1-24. . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC)
Check 7B1-24. . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC)
Clearance 7B1-24. . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC) Table7B1-24 . . .
Fail-Safe Table 7B1-25. . . . . . . . . . . . . . . . . . . . .
Visual Inspection 7B1-26. . . . . . . . . . . . . . . . . . .
A / T Basic Check 7B1-27. . . . . . . . . . . . . . . . . . .
Trouble Diagnosis Table 1 7B1-28. . . . . . . . . . .
Trouble Diagnosis Table 2 7B1-28. . . . . . . . . . . Trouble Diagnosis Table 3 7B1-29. . . . . . . . . . .
Scan Tool Data 7B1-30. . . . . . . . . . . . . . . . . . . . .
Inspection of PCM and Its Circuit 7B1-30. . . . .
Wire Harness and Connectors 7B1-30. . . . . . . .
Diagnostic Flow Table A-1 7B1-31. . . . . . . . . . .
Diagnostic Flow Table A-2 7B1-33. . . . . . . . . . .
Table B-1 ªO / D OFFº Light Circuit
Check 7B1-35. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-2 ªO / D OFFº Light Circuit
Check 7B1-36. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-3 ªPOWERº Light Circuit
Check 7B1-37. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-4 ªPOWERº Light Circuit
Check 7B1-38. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0705 Transmission Range
Sensor (Switch) Circuit Malfunction 7B1-39. .
DTC P0715 Input / Turbine Speed
Sensor Circuit Malfunction 7B1-42. . . . . . . . . .
DTC P0720 Output Speed Sensor
Circuit Malfunction 7B1-44. . . . . . . . . . . . . . . . .
DTC P0741 TCC Solenoid Valve
Performance or Stuck Off 7B1-46. . . . . . . . . . .
DTC P0743 TCC Solenoid Electrical 7B1-47. .
DTC P0751 Shift Solenoid Valve-A (#1)
Performance or Stuck Off 7B1-49. . . . . . . . . . .
DTC P0756 Shift Solenoid Valve-B (#2)
Performance or Stuck Off 7B1-49. . . . . . . . . . .
SECTION 7B1
AUTOMATIC TRANSMISSION
(4 A
/
T)
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 autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº 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
ªLOCKº 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).
CONTENTS

YH4
GRAND
VITARA
7B1-20 AUTOMATIC TRANSMISSION (4 A / T)
PRECAUTION IN DIAGNOSING TROUBLE

Don't disconnect couplers from PCM (ECM), battery cable from battery, PCM ground wire harness from engine
or main fuse before checking the diagnosis information (DTC, freeze frame data, etc.) stored in PCM memory.
Such disconnection will clear memorized information in PCM memory.

Using SUZUKI scan tool (Tech-1), or also generic scan tool for vehicle without monitor connector, the diagnostic
information stored in PCM memory can be checked and cleared as well. Before its use, be sure to read Operator's
(instruction) Manual supplied with it carefully to have good understanding of its functions and usage.

Priorities for diagnosing troubles (Only for vehicle without monitor connector)
If two or more diagnostic trouble codes (DTCs) are stored, proceed to the flow table of the DTC which was de-
tected earliest in the order and follow the instruction in that table.
If no instructions are given, troubleshoot diagnostic trouble codes according to the following priorities.
1. Diagnostic trouble codes (DTCs) other than DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC
P0400 (EGR flow malfunction)
2. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0400 (EGR flow malfunction)

Be sure to read ªPrecautions for Electrical Circuit Serviceº in Section 0A before inspection and observe what is
written there.

PCM replacement
When substituting a known-good PCM, check for following conditions.
Neglecting this check may result in damage to good PCM.
± All relays and actuators have resistance of specified value.
± MAF sensor, MDP sensor, TP sensor and fuel tank pressure sensor are in good condition. Also, the power
circuit of these sensors is not shorted to the ground.