2000 SUZUKI SWIFT ısc

1. Malfunction indicator
lamp (MIL)
1. Data link connector (DLC)
1. Data link connector (DLC)
7B-16 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
MALFUNCTION INDICATOR LAMP (MIL) CHECK
Refer to the same item in Section 6 or 6-1 for checking procedure.
DIAGNOSTIC TROUBLE CODE(S) CHECK
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link
connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special Tool
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16 / 14 pin DLC cable)
3) Turn ignition switch ON.
4) Read DTC according to instructions displayed on SUZUKI scan
tool and print it or write it down. Refer to SUZUKI scan tool opera-
tor’s manual for further details.
5) After completing the check, turn ignition switch OFF and discon-
nect SUZUKI scan tool from data link connector (DLC).
DIAGNOSTIC TROUBLE CODE(S) CLEARANCE
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link
connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special Tool
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16 / 14 pin DLC cable)
3) Turn ignition switch ON.
4) Erase DTC according to instructions displayed on SUZUKI scan
tool. Refer to SUZUKI scan tool operator’s manual for further de-
tails.
5) After completing the check, turn ignition switch OFF and discon-
nect SUZUKI scan tool from data link connector (DLC).

7B-18 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
VISUAL INSPECTION
Visually check following parts and systems.
INSPECTION ITEM
REFERRING SECTION

A / T fluid– – – – – level, leakage, color

A / T fluid hoses – – – – – disconnection, looseness, deterioration

Throttle cable – – – – – play, installation

A / T oil pressure control cable and select cable – – – – – installation

Engine oil – – – – – level, leakage

Engine coolant – – – – – level, leakage

Battery – – – – – fluid level, corrosion of terminal

Connectors of electric wire harness – – – – – disconnection, friction

Fuses – – – – – burning

Parts – – – – – installation, bolt – – – – – looseness

Parts – – – – – deformation

Other parts that can be checked visually
Also check following items at engine start, if possible.

Malfunction indicator lamp

Charge warning lamp

Engine oil pressure warning lamp

Engine coolant temp. meter

Other parts that can be checked visuallySection 0B
Section 7B
Section 6E1 or 6E2
Section 7B
Section 0B
Section 0B
Section 6 or 6-1
Section 8
Section 6 or 6-1
Section 6H
Section 8 (Section 6A or 6A1 for
pressure check)

AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-25
Fig. 1 for Step 2. Fig. 2 for Step 3. Fig. 3 for Step 3.
TROUBLESHOOTING
STEPACTIONYESNO
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE” performed?Go to Step 2.Go to
”AUTOMATIC
TRANSMISSION
DIAGNOSTIC
FLOW TABLE”.
2Check Output Shaft Speed Sensor for Resistance.
1) Disconnect output shaft speed sensor connector with
ignition switch OFF.
2) Check for proper connection to output shaft speed
sensor at “P” and “Bl” wire terminals.
3) If OK, then check resistance of output shaft speed
sensor. See Fig. 1.
Resistance between terminals : 100 – 300 Ω
Resistance between terminal
and transmission : 1 MΩ or more
Are check results satisfactory?Go to Step 3.Replace output
shaft speed
sensor.
3Check visually output shaft speed sensor and counter
shaft gear for the following.
See Fig. 2 and 3.

No damage

No foreign material attached

Correct installation
Are they in good condition?“P” or “Bl” wire open or
shorted to ground or
poor C03-2 or C03-13
for G10 engine model
(C03-2 or C03-8 for
G13 engine model)
connection.
If wire and connection
are OK, intermittent
trouble or faulty PCM.
Check for intermittent
referring to
“INTERMITTENT
AND POOR
CONNECTION” in
Section 0A.Clean, repair or
replace.

AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-27
Fig. 1 for Step 2. Fig. 2 for Step 2. Fig. 3 for Step 3.
When using SUZUKI scan tool: When not using SUZUKI scan tool:Terminal for solenoid-B (C29-2)
Terminal for
solenoid-A (C29-1)
TROUBLESHOOTING
STEPACTIONYESNO
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC FLOW
TABLE” performed?Go to Step 2.Go to
“AUTOMATIC
TRANSMISSION
DIAGNOSTIC
FLOW TABLE”.
2Check Shift Solenoid Circuit.
When using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition switch OFF.
2) Turn ignition switch ON.
3) Select “Data list” mode on scan tool. See Fig. 1.
4) Check “SHIFT SOL A-MONI” or “SHIFT SOL B-MONI” on
scan tool at “N” and “D” range.
“N” range: OFF
“D” range: ON
Is OFF / ON displayed as described above?
When not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminal C02-8 or C02-9 for G10 engine
model (C03-4 or C03-11 for G13 engine model) of PCM
connector connected. See Fig. 2.
“N” range: 0 V
“D” range: 10 – 14 V
Is voltage displayed as described above?Intermittent
trouble.
Check for
intermittent
referring to
“INTERMITTENT
AND POOR
CONNECTION”
in Section 0A.Go to Step 3.
3Check Shift Solenoid for Resistance.
1) Turn ignition switch OFF.
2) Disconnect connector of shift solenoid.
3) Check resistance between solenoid terminal C29-1 or
C29-2 and transmission. See Fig. 3.
Is it 8 – 20 Ω?“G/W” or “G/Or”
wire open or
short, or poor
C02-8 or C02-9
for G10 engine
model (C03-4 or
C03-11 for G13
engine model)
connection.
If wire and
connection are
OK, substitute a
known-good
PCM and
recheck.Replace shift
solenoid.

7B-30 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
TABLE A-1 NO STARTING OR SLIPPING IN ANY DRIVE RANGE
STEPACTIONYESNO
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE” performed?Go to Step 2.Go to
“AUTOMATIC
TRANSMISSION
DIAGNOSTIC FLOW
TABLE”.
2Is engine rpm at stall test normal?Transmission
failure.Go to Step 3.
3Is engine rpm at stall test too low in any range?Poor engine power or
torque converter
defective.Go to Step 4.
4Is engine rpm at stall test too high only in “D” range?Go to Step 7.Go to Step 5.
5Is engine rpm at stall test too high only in “R” range?Go to Step 9.Go to Step 6.
6Is line pressure proper?Transmission failure.Oil pump defective,
Regulator valve
operation failure,
Throttle valve
operation failure or
Accelerator cable
and oil pressure
control cable
maladjusted.
7Does engine rpm at stall test become normal when
coupler of solenoid valve wire is disconnected?One-way clutch
operation failure.Go to Step 8.
8Is line pressure proper?Forward clutch worn.Oil leak in forward
clutch oil circuit or Oil
leak in “D” range oil
circuit.
9Does engine rpm at stall test become normal when
coupler of solenoid valve wire is disconnected?1st-Reverse brake
worn.Go to Step 10.
10Is line pressure proper?Direct clutch worn.Oil leak in direct
clutch oil circuit or Oil
leak in “R” range oil
circuit.

AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-31
TABLE A-2 GEAR CHANGE FAILURE
STEPACTIONYESNO
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE” performed?Go to Step 2.Go to “AUTOMATIC
TRANSMISSION
DIAGNOSTIC FLOW
TABLE”.
2Disconnect solenoid valve wire coupler and perform
manual road test.
Is upshift from 1st to 2nd possible?Go to Step 3.1-2 shift valve sticks
or Shift solenoid-B
(2nd brake solenoid)
valve sticks.
3Is upshift from 2nd to 3rd possible?Gear shift control
system defective.
Go to A / T Diagnostic
Flow Table B.2-3 shift valve sticks
or Shift solenoid-A
(Direct clutch
solenoid) valve
sticks.
TABLE A-3 EXCESSIVE SHOCK AT RANGE SELECTION OR GEAR CHANGE
STEPACTIONYESNO
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE” performed?Go to Step 2.Go to “AUTOMATIC
TRANSMISSION
DIAGNOSTIC FLOW
TABLE”.
2Is line pressure proper?Go to Step 3.Regulator valve
defective, Throttle
valve defective or
Accelerator cable
maladjusted.
3Does excessive shock occur when selecting “D” range
from “N” range?Forward clutch
accumulator
operation failure,
Forward clutch worn
or Forward clutch oil
circuit check ball
operation failure. Go to Step 4.
4Does excessive shock occur when selecting “R” range
from “N” range?1st-Reverse brake
worn, 1st-Reverse
brake oil circuit check
ball operation failure.Go to Step 5.
5Does excessive shock occur at 1st to 2nd gear
change?2nd brake
accumulator
defective, 2nd brake
worn, 2nd brake oil
circuit check ball
operation failure.In case of excessive
shock at 2nd to 3rd
gear change, Direct
clutch worn or Direct
clutch oil circuit check
ball operation failure.

AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-35
ROAD TEST
This test is to check if upshift and downshift take place at specified
speeds while actually driving vehicle on a level road.
WARNING:

Carry out the test in very little traffic area to prevent an ac-
cident.

The test requires 2 persons, a driver and a tester.
1) Warm up engine.
2) With engine running at idle, shift selector lever to D range.
3) i) Accelerate vehicle speed by depressing accelerator pedal
very little (within 4 deg. of throttle valve opening).
ii) Check if upshift takes place from 1st to 2nd at about 18 km / h
(11 mile / h) and from 2nd to 3rd at about 30 km / h (19 mile / h).
iii)
[For G10 Engine Model]
Stop vehicle once. Then start it again and while accelerating
by depressing accelerator pedal fully, check if upshift takes
place from 1st to 2nd at 52 km / h (33 mile / h) and from 2nd to
3rd at 97 km / h (61 mile / h).
[For G13 Engine Model]
Stop vehicle once. Then start it again and while accelerating
by depressing accelerator pedal fully, check if upshift takes
place from 1st to 2nd at 58 km / h (36 mile / h) and from 2nd to
3rd at 110 km / h (69 mile / h).
iv) Stop vehicle again.
v) Start vehicle and keep it running at 25 km / h (15 mile / h) and
then release accelerator pedal completely. 1 or 2 seconds lat-
er, depress accelerator pedal fully and check if downshift
from 2nd to 1st takes place.
vi) Keep vehicle running at 75 km / h (47 miles / h) and in the
same way as in step v), check if downshift from 3rd to 2nd
takes place.
vii) If upshift or downshift fails to take place at each specified
speed in the road test, possible causes for such failure are as
follows. Check each part which is suspected to be the cause.
Condition
Possible causes
No upshift from 1st
to 2nd
1 – 2 shift valve defective

2nd brake solenoid valve defective

PCM defective, or disconnection or
poor connection in electric circuit
No upshift from
2nd to 3rd
2-3 shift valve defective

Direct clutch solenoid valve defective

PCM defective, or disconnection or
poor connection in electric circuit
No downshift from
2nd to 1st or 3rd to
2nd
Throttle position sensor defective

PCM defective, or disconnection or
poor connection in electric circuit

1. Solenoid valve wire coupler (Disconnected)
2. Transmission
7B-36 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
MANUAL ROAD TEST
This test checks the gears being used in L, 2 or D range when driven
with unoperated gear shift control system.
Test drive vehicle on a level road.
1) With selector lever in P range, start engine and warm it up.
2) After warming up engine, disconnect coupler of solenoid valve
wire as shown in left figure.
3) With selector lever in L range, start vehicle and accelerate to
30 km / h (19 mile / h). Check in this state that 1st gear is being
used.
4) At 30 km / h (19 mile / h), shift selector lever to 2 range and accel-
erate to 60 km / h (37 mile / h).
Check in this state that 2nd gear is being used.
5) At 60 km / h (37 mile / h), shift selector lever to D range and check
that 3rd gear is used when speed is higher than 60 km / h
(37 mile / h).
6) After above checks, stop vehicle then engine, and connect sole-
noid valve wire coupler.
ENGINE BRAKE TEST
WARNING:
Before test, make sure that there is no vehicle behind so as
to prevent rear-end collision.
1) While driving vehicle in 3rd gear of D range, shift selector lever
down to 2 range and check if engine brake operates.
2) In the same way as in step 1), check engine brake for operation
when selector lever is shifted down to L range.
3) If engine brake fails to operate in above tests, possible cause for
such failure are as follows.
Check each part which is suspected to be the cause.
Condition
Possible causes
Fails to operate when
shifted down to 2 rangeSecond brake defective
Fails to operate when
shifted down to L range1st-reverse brake defective