2000 SUZUKI SWIFT oil

1. Front drive shaft (LH)
2. Oil pan
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-33
LINE PRESSURE TEST
This test is to check oil pressure system for operation by measuring
oil pressure in oil pressure line. Make sure to perform this test only
when transmission fluid is at normal operating temperature.
NOTE:

Make sure that transmission fluid level is between FULL HOT
and LOW HOT marks on oil level gauge at normal operating
temperature which corresponds to 70–80C (155–176F) of
fluid. (Refer to “Fluid level” in this section.)

Check that transmission is free from fluid leakage.
1) With engine at stop, remove plug and connect oil pressure
gauge to plug hole.
Special Tool
(A): 09925-37811-001
2) Install tachometer.
3) Apply parking brake and block vehicle wheels.
4) With selector lever shifted to P range, start engine.
5) Depress brake pedal fully.
6) Shift selector lever to D range and check oil pressure with engine
running at idling speed and at stall speed respectively.
7) Repeat the same check as in step 6) with selector lever shifted
to R range.
CAUTION:
Do not run engine at stall more than 5 seconds continu-
ously, for oil temperature may rise excessively high.
8) If line pressure is within respective specification in table below,
oil pressure system is in good condition.
[G10 Engine Model]
Engine speedLine pressureEngine s eedD rangeR range
Idling speed
200 – 390 kPa
2.0 – 3.9 kg / cm2
28.4 – 55.5 psi
540 – 780 kPa
5.4 – 7.8 kg / cm2
76.8 – 110.9 psi
Stall speed
390 – 590 kPa
3.9 – 5.9 kg / cm2
55.5 – 83.9 psi
880 – 1230 kPa
8.8 – 12.3 kg / cm2
125.1 – 174.9 psi
[G13 Engine Model]
Engine speedLine pressureEngine s eedD rangeR range
Idling speed
260 – 460 kPa
2.6 – 4.6 kg / cm2
37.0 – 65.4 psi
660 – 900 kPa
6.6 – 9.0 kg / cm2
93.9 – 128.0 psi
Stall speed
660 – 850 kPa
6.6 – 8.5 kg / cm2
93.9 – 120.9 psi
1330 kPa or more
13.3 kg / cm2 or more
189.0 psi or more

1. Drive shaft (LH)
2. Oil pan
7B-34 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
9) Possible causes for out-of-specification line pressure are as
follows. Check each part which is suspected to be the cause.
Line pressure
Possible causes
Higher than specification
in D and R ranges
Regulator valve defective

Throttle valve in valve body
defective

Accelerator cable and oil
pressure control cable
maladjusted
Lower than specification
in D and R ranges
Oil pump defective

Regulator valve defective

Throttle valve in valve body
defective

Accelerator cable and oil
pressure control cable
maladjusted
Lower than specification
only in D range
Forward clutch oil pressure
system oil leakage

D range oil pressure system
oil leakage
Lower than specification
only in R range
Direct clutch oil pressure
system oil leakage

1st-reverse brake oil
pressure system oil leakage

R range oil pressure system
oil leakage
10) Reinstall plug and tighten it to specification.
Tightening Torque
(a): 7.5 N·m (0.75 kg-m, 5.5 lb-ft)

WITHOUT BATTERY VOLTAGE
WITH BATTERY VOLTAGE
1. Oiler (with transmission fluid)
2. Solenoid valve
3. 12V battery
“A”: Side hole (Should be dry)
“B”: Exhausting fluid
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-37
“P” RANGE TEST
1) Stop vehicle on a slope, shift selector lever to P range and at the
same time apply parking brake.
2) After stopping engine, release parking brake lever gradually and
check that vehicle remains stationary.
SHIFT SOLENOID VALVE CHECK
Whenever shift solenoid valves are removed from transmission,
verify their valve function physically before they are reinstalled.
1) Apply oiler to solenoid valve and give compression by hands
and then check to be sure that transmission fluid from oiler does
not come out from side holes of solenoid valve when battery volt-
age is not conducted.
2) Holding the above condition, conduct battery voltage and then
make sure that fluid is exhausted with vigor.
NOTE:
If fluid does not come out with vigor in above step 2) inspec-
tion, do not reuse that solenoid valve.

1. Output shaft speed sensor
1. PCM coupler disconnected
7B-40 AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC)
Separately from the above inspection, output shaft speed sensor
itself can be checked on its resistance by disconnecting coupler.
NOTE:

Function of output shaft speed sensor can be checked by
measuring generated pulse as voltage.

For its measurement, use an analog type voltmeter while
spinning wheels on lift and with selector lever in “D” range.
Output shaft speed sensor specifications
Coil resistance100 – 300 Ω
Output voltage at 40 km / h
(25 mile / h)Approximately 1 V
SHIFT SOLENOID VALVE CIRCUIT CHECK
1) With ignition switch turned OFF, disconnect PCM couplers.
2) Bring ohmmeter probes in touch with coupler terminals from har-
ness side and measure each resistance.
Resistance between C02-9 and C02-1
for G10 engine model (C03-4 and
C01-1 for G13 engine model)
(Shift solenoid-A, direct clutch) : 8 – 20 Ω
Resistance between C02-8 and C02-1
for G10 engine model (C03-11 and
C01-1 for G13 engine model)
(Shift solenoid-B, 2nd brake) : 8 – 20 Ω
If resistance is out of specification, check shift solenoid itself for
resistance (referring to Step 3 of DTC P0753 / P0756 Flow Table)
and wire harness for open or short.
If resistance is within specification, proceed to step 3).

1. Solenoid valve wire coupler
2. Terminal for shift solenoid-A. (direct clutch solenoid)
3. Terminal for shift solenoid-B. (2nd brake solenoid)
4. 12 V battery
5. Shift solenoid-B. (2nd brake solenoid valve)
6. Shift solenoid-A. (Direct clutch solenoid valve)
AUTOMATIC TRANSMISSION (3 A / T) (VEHICLE WITH WU-TWC) 7B-41
3) Disconnect shift solenoid valve coupler from harness.
4) Apply 12 V to each terminal in solenoid valve coupler and check
to be sure that a click sound is heard from each of shift sole-
noid-A and -B.
If no click sound is heard, check lead wire and connections in oil
pan, and then replace applicable shift solenoid-A or B if wire and
connections are in good condition.
If click sound is heard from each of shift solenoids A and B, shift
solenoid electrical circuits are in good condition. Proceed to
“SHIFT SOLENOID VALVE CHECK” previously described in
this section.
THROTTLE POSITION SENSOR CHECK
Check throttle position sensor and its circuit referring to DTC P0121
Flow Table in Section 6 or 6-1.

NOTE:
Terminal arrangement of coupler viewed from harness side.
Coupler A
1. To generator W / R
2. To ignition switch B / W
3. To ECM V / G
4. To ECM V
5. Blank –
6. To ECT sensor Y / W
7. Blank —
8. To engine oil pressure switch Y / B
9. To ECM Br
10. Blank —
11. To SDM (if equipped) Bl
12. Blank —
13. Blank —
14. Blank —
15. To ground R
16. To combination switch R / Y
Coupler B
1. To combination switch G / R
2. Blank —
3. Blank —
4. To ECM Y / G
5. To brake fluid level switch and R / B
parking brake switch
6. Blank —
7. To ABS control module R / Bl
(if equipped)
8. Blank —
9. To fuel level gauge Y / R
10. To ground B / Bl
11. To ignition switch B / W
12. Blank —
13. Blank —
Coupler C
1. Blank —
2. Blank —
3. Blank —
4. Blank —
5. Blank —
6. Blank —
7. To main fuse R
8. To combination switch W / Bl
9. To ground B
10. To combination switch G / Y
Coupler A Coupler B Coupler C
8-2 BODY ELECTRICAL SYSTEM
GENERAL DESCRIPTION
COMBINATION METER

Ignition key
Transponder
code
Immobilizer
Control
Module
ECM
(1)(2)
(3)(4)
1. Coil antenna
2. Immobilizer Control
Module
3. Engine Control Module
(ECM)
4. Ignition key
8G-2 IMMOBILIZER CONTROL SYSTEM
GENERAL DESCRIPTION
The immobilizer control system designed to prevent vehicle burglar consists of following components.

Engine Control Module (ECM)

Immobilizer Control Module

Ignition key (with built-in transponder)

Coil antenna
Operation of this system is as follows.
(1) Each ignition key has its own code (Transponder code) stored in memory. When the ignition switch is turned
ON, Immobilizer Control Module tries to read the Transponder code through the coil antenna installed to the
steering lock assembly.
(2) Immobilizer Control Module compares the Transponder code read in (1) and that registered in Immobilizer Con-
trol Module and checks if they match.
(3) When it is confirmed that two Transponder codes match each other as described above, Immobilizer Control
Module and ECM check if ECM/Immobilizer Control Module codes registered in them respectively match.
(4) Only when it is confirmed that ECM/Immobilizer Control Module codes match, the engine starts running. If
Transponder codes in Step (2) or ECM/Immobilizer Control Module codes in Step (3) do not match, ECM will
stop operation of the injector and the ignitor (i.e., ignition of spark plug).

IMMOBILIZER CONTROL SYSTEM 8G-3
Vehicle without monitor coupler
1. Coil antenna
2. Immobilizer Control Module
3-1. ECM (G10 engine)
3-2. ECM (G13 engine without monitor coupler)
3-3. ECM (G13 engine with monitor coupler)
4. Immobilizer diagnostic coupler
4-1. Diagnostic output terminal
4-2. Ground terminal
5. Malfunction indicator lamp
6. Main relay
7. Ignition switch
8. Fuse
9. Main fuse
10. To #9-pin in Data link connector
11. To #7-pin in Data link connector
12. To ABS control module
13. Immobilizer indicator lamp
(Vehicle not equipped with monitor coupler)
14. Monitor coupler (Vehicle not equipped
with immobilizer indicator lamp)
Vehicle with monitor couplerG10 engineG13 engine
G13B engine
n
W/R
Bl / B
W/Bl
B/W
V/G
W/Bl
B/W
B
V/W
V/W
P/B
P/Bl
P/G
B
B
B/Bl
B/R
–
R/G
–W/R
Gr
R/B
B/W
V/G
W/Bl
B/W
B
Y/B
V/W
P/B
P/Bl
P/G
B
B
B/Or
B/Or
–
R/G
–W/R
G/B
W/Bl
B/W
–
W/Bl
B/W
B
V/W
V/W
P/B
P/Bl
P/G
B
B/Bl
B/Bl
B/G
V
–
V/Y WIRE
SYMBOL
G10 engineG13 engine
without monitor
couplerG13 engine
with monitor
coupler WIRE COLORabcdefghijklmnopqrst