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Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 309

5A-27 Automatic Transmission/Transaxle:

Fuel Cut Flag

Ignition switch ON

OFF

O/D Off Switch

Ignition switch ON Shift selector lever to “3” range

Shift selector lever to other
above range

OFF

Trans Range

Ignition switch ON Select lever is in “P” position

Select lever is in “R” position

Select lever is in “N” position

Select lever is in “D” position

Select lever is in “3” position

Select lever is in “2” position

Select lever is in “L” position

Shift Sol A Con

At vehicle stop, closed throttle and 1st gear

At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear

OFF

Shift Sol A Mon

At vehicle stop, closed throttle and 1st gear

At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear

OFF

Shift Sol B Con

At vehicle stop, closed throttle and 1st gear

OFF

At 20 km/h (12.5 mile/h) constant speed, 20% or less
throttle opening and 2nd gear

Shift Sol B Mon

At vehicle stop, closed throttle and 1st gear

OFF

At 20 km/h (12.5 mile/h) constant speed, 20% or less
throttle opening and 2nd gear

Mode Select Switch Ignition switch ON, P/N mode switch is at Normal

position

NORMAL

Ignition switch ON, P/N mode switch is at Power
position

POWER

4WD Low Switch

Ignition switch ON, 4L/N switch is “4H” position (if
equipped)

OFF

Ignition switch ON, 4L/N switch is “4L” or “N” position
(if equipped)

D Range Signal

Ignition switch ON Select lever is in “P” position

P/N range

Select lever is in “R” position

D range

Select lever is in “N” position

P/N range

Select lever is in “D” position

D range

Select lever is in “3” position

D range

Select lever is in “2” position

D range

Select lever is in “L” position

D range

A/C Switch

Ignition switch ON and air conditioner switch OFF

Cancel

Brake Switch

Ignition switch ON Brake pedal is depressed

Brake pedal is released

OFF

Accel Actual Pos

Ignition switch ON Accelerator pedal is depressed

0 – 100% (varies depending on
depressed value)

Accelerator pedal is released

Scan Tool Data

Vehicle Condition

Normal Condition / Reference Values

Automatic Transmission/Transaxle: 5A-28

Scan Tool Data Definitions
Gear Position (1

, 2

, 3

, 4

, N, R): This

parameter is indicated actual gear position.

Throttle Position (%): Throttle valve opening ratio sent

from ECM on CAN communication line.

Input Shaft Rev (RMP): Input shaft revolution

computed by reference pulses coming from input
shaft speed sensor on transmission case.

Output Shaft Rev (RMP): Output shaft revolution

computed by reference pulses coming from output
shaft speed sensor on transmission case.

Vehicle Speed 1 (Km/h): This parameter is competed

by output shaft speed sensor and 4L/N switch (if
equipped) on TCM. Gear shift schedule relate this
parameter.

Battery Voltage (V): Battery voltage read by TCM as

analog input signal by TCM.

ATF Temp (

°C): ATF temperature detected by signal

from transmission fluid temperature sensor installed
in valve body.

TCC Sol Duty (%): Electric current value ration

between electric current value being outputted from
TCM to TCC pressure control solenoid and
maximum value can be outputted by TCM.

Press Cont Sol (%): Electric current value ratio

between electric current value being outputted from
TCM to pressure control solenoid-A and maximum
value can be outputted by TCM.

Slip RPM (RMP): This parameter indicates slipping

rotation in the torque converter (difference between
input shaft rotation and engine rotation).

Vehicle Speed 2 (Km/h): Actual vehicle speed

detected by signal on CAN communication line fed
from ECM.

Engine Speed (RPM): Engine speed computed by

signal on CAN communication line fed from ECM.

Coolant Temp (

°C): Engine coolant temperature

detected by signal on CAN communication line fed
from ECM.

Target Engine Torque (N

⋅m): Target engine torque

detected by signal on CAN communication line fed
from ECM.

Engine Torque (N

⋅m): Actual engine torque detected

by signal on CAN communication line fed from ECM.

MIL Request (ON, OFF) (E-OBD model): ON: Signal

which TCM requires combination meter to turn ON
malfunction indicator lamp.
OFF: Signal which TCM does not require
combination meter to turn ON malfunction indicator
lamp.

Malfunction Indication On (ON, OFF) (Non-E-OBD

model): ON: Signal which TCM requires
combination meter to turn ON transmission warning
lamp.
OFF: Signal which TCM does not require
combination meter to turn ON transmission warning
lamp.

Fuel Cut Flag: ON: Signal which inform that fuel cut is

operating.
OFF: Signal which inform that fuel cut is not
operating.

O/D Off Switch (ON, OFF): Inputted signal from “3”

position switch in selector lever assembly.
ON: Shift selector lever to “3” range
OFF: Shift selector lever to other above range

Trans Range (P, R, N, D, 2, L): It indicates

transmission range according to transmission range
switch signal.

Shift Sol A Con/ MON (ON, OFF): COM-ON: ON

command being outputted to shift solenoid-A.
COM-OFF: OFF command not being outputted to
shift solenoid-A.
MON-ON: Electricity being passed to shift solenoid-
A.
MON-OFF: Electricity not being passed to shift
solenoid-A.

Shift Sol B Con / MON (ON, OFF): COM-ON: ON

command being outputted to shift solenoid-B.
COM-OFF: OFF command not being outputted to
shift solenoid-B.
MON-ON: Electricity being passed to shift solenoid-
B.
MON-OFF: Electricity not being passed to shift
solenoid-B.

Mode Select Switch (NORMAL, POWER): Inputted

signal from P/N mode switch on center console.
NORMAL: P/N mode switch is at OFF position.
POWER: P/N mode switch is at ON position.

4WD Low Switch (if equipped) (ON, OFF): Inputted

signal from 4L/N switch on transfer case.
ON: Transfer gear position is 4L or N
OFF: Transfer gear position is 4H

D RANGE SIGNAL (P/N range, D range): ON: Signal

which TCM require ECM to increase idle speed
OFF: Signal which TCM does not require ECM to
increase idle speed

A/C Switch (ON, OFF): ON: Signal which inform that

air conditioner compressor is turned ON.
OFF: Signal which inform that air conditioner
compressor is turned OFF.

Brake Switch (ON, OFF): Brake light switch position

detected by signal on CAN communication line fed
from ECM.
ON: Brake pedal depressed
OFF: Brake pedal released

Accel Actual Pos (%): Accelerator pedal opening ratio

detected by signal on CAN communication line fed
from ECM.

5A-29 Automatic Transmission/Transaxle:

Visual Inspection

S6JB0A5104010

Visually check the following parts and systems.

A/T Basic Check

S6JB0A5104011

This check is important for troubleshooting when TCM has detected no DTC and no abnormality has been noted in
visual inspection. Follow the flow table carefully.

Inspection Item

Referring

A/T fluid

Level, leakage, color

“A/T Fluid Level Check”

A/T fluid hoses

Disconnection, looseness,
deterioration

“Oil Cooler Hose and Pipe Components”

A/T select cable

Installation, operation

“Select Cable Adjustment”

Engine oil

Level, leakage

“Engine Oil and Filter Change (Petrol Engine
Model) in Section 0B”

Engine coolant

Level, leakage

“Engine Coolant Change in Section 0B”

Battery

Fluid level, corrosion of terminal

Connectors of electric wire harness Disconnection friction

“Intermittent and Poor Connection Inspection in
Section 00”

Fuses

Burning

“Cautions in Body Electrical System Servicing in
Section 9A”

Parts

Installation, damage

Bolt

Looseness

Transmission warning light

Operation at engine start

“Transmission Warning Light Operation Check
(Non-E-OBD Model)”

“POWER” lamp

Operation at engine start

““POWER” Lamp Operation Check”

Malfunction indicator lamp

Operation at engine start

“Malfunction Indicator Lamp (MIL) Check: For
Petrol Engine Model in Section 1A”

Charge warning lamp

Operation at engine start

“Generator Symptom Diagnosis: For Petrol
Engine Model in Section 1J”

Engine oil pressure warning lamp

Operation at engine start

“Oil Pressure Switch Inspection in Section 9C”

Engine coolant temp. meter

Operation at engine start

Other parts that can be checked visually

Step

Action

Yes

Was “A/T System Check” preformed?

Go to Step 2.

Go to “A/T System
Check”.

Perform “Road Test”

Is it OK?

Go to Step 3.

Proceed to
“Troubleshooting” in
“Road Test”.

Perform “Manual Road Test”

Is it OK?

Go to Step 4.

Proceed to
“Troubleshooting” in
“Manual Road Test”.

Perform “Engine Brake Test”

Is it OK?

Go to Step 5.

Proceed to
“Troubleshooting” in
“Engine Brake Test”.

Perform “Stall Test”

Is it OK?

Go to Step 6.

Proceed to
“Troubleshooting” in
“Stall Test”.

Perform “Time Lag Test”

Is it OK?

Go to Step 7.

Proceed to
“Troubleshooting” in
“Time Lag Test”.

Perform “Line Pressure Test”

Is it OK?

Go to Step 8.

Proceed to
“Troubleshooting” in
“Line Pressure Test”.

1) Proceed to “Trouble Diagnosis 1” in “A/T Symptom

Diagnosis”.

Is trouble identified?

Repair or replace faulty
parts.

Go to Step 9.

Automatic Transmission/Transaxle: 5A-30

Road Test

S6JB0A5104012

This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a
level road.

WARNING

• Carry out test in very little traffic area to prevent an accident.
• Test requires 2 persons, a driver and a tester.

1) Warm up engine.
2) With engine running at idle, shift select “D”.
3) Accelerate vehicle speed by depressing accelerator pedal gradually.
4) While driving in “D” range, check if gear shift and lock-up occur properly as shown in “Automatic Gear Shift Table”.

Troubleshooting

1) Proceed to “Trouble Diagnosis 2” in “A/T Symptom

Diagnosis”.

Is trouble identified?

Repair or replace faulty
parts.

Proceed to “Trouble
Diagnosis 3” in “A/T
Symptom Diagnosis”.

Step

Action

Yes

Condition

Possible cause

Correction / Reference Item

Unable to run in all range Faulty oil pump

Inspect. If NG, replace.

Seized or broken planetary gear

Inspect. If NG, replace.

Faulty torque converter

Inspect. If NG, replace.

Damaged drive plate

Inspect. If NG, replace.

Faulty valve body component

Replace valve body assembly.

Unable to run in reverse
position

Faulty direct clutch

Inspect. If NG, replace.

Faulty reverse brake

Inspect. If NG, replace.

→

2 upshift fails to

occur

Malfunction of transmission range
sensor

Inspect. If NG, replace.

Maladjust shift control cable

Adjust.

Faulty valve body component

Replace valve body component.

Faulty second brake

Inspect. If NG, replace.

Faulty one-way No.1 clutch

Inspect. If NG, replace.

→

3 upshift fails to

occur

Malfunction of transmission range
sensor

Inspect. If NG, replace.

Faulty valve body component

Replace valve body component.

Faulty direct clutch

Inspect. If NG, replace.

→

4 upshift fails to

occur

Malfunction of transmission range
sensor

Inspect. If NG, replace.

Faulty valve body component

Replace valve body component.

Faulty O/D brake

Inspect. If NG, replace.

Incorrect gear shift point Malfunction of throttle position sensor

Inspect. If NG, replace.

Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor

Inspect. If NG, replace.

Malfunction of power mode switch

Inspect, If NG, replace.

Malfunction of transmission fluid
temperature sensor

Inspect. If NG, replace.

TCC (lock-up) function
does not operate

Malfunction of engine coolant
temperature (ECT) sensor

Inspect. If NG, replace.

Malfunction of brake light switch

Inspect. If NG, replace.

Malfunction of throttle position sensor

Inspect. If NG, replace.

Faulty valve body component

Replace valve body component.

Faulty torque converter

Replace torque converter.

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