sensor SUZUKI SWIFT 2000 1.G Transmission Service Owner's Guide

7B-50 AUTOMATIC TRANSMISSION (4 A/T)
Chart for Step 2
Chart for Step 3
Chart for Step 5
Figure for Step 1 and 54 Check continuity between terminal of discon-
nected body side solenoid coupler and transmis-
sion ground with TCM, dropping resister and
solenoid couplers disconnected.
Is there continuity?Circuit between
TCM and transmis-
sion shorted to
ground.Go to Step 5.
5 Check continuity between terminal of discon-
nected body side dropping resistor coupler and
transmission ground. (See chart.)
Is there continuity?Circuit between
TCM and dropping
resister is shorted
to ground.Intermittent trouble or faulty
TCM.
Check for intermittent referring
to “INTERMITTENT AND
POOR CONNECTION” in Sec-
tion 0A. If no trouble found,
substitute a known-good TCM
and recheck.
Solenoid TCM terminal No.Solenoid coupler lead wire color
(body side)
C (No.3) C44-11 BRN
D (No.4) C44-12 BLK/YEL
E (No.5) C44-13 BRN/WHT
Solenoid TCM terminal No.Solenoid coupler lead wire color
(body side)
C (No.3) C44-24 BRN
D (No.4) C44-25 BLK/YEL
E (No.5) C44-26 BRN/WHT
Solenoid TCM terminal No.Dropping resistor lead wire color
(body side)
C (No.3) C44-11 GRY/BLU
D (No.4) C44-12 RED/BLU
E (No.5) C44-13 BLU/ORN
1. Solenoid coupler
2. Terminal for shift solenoid-C (No.3)
3. Terminal for shift solenoid-D (No.4)
4. Terminal for shift solenoid-E (No.5)
5. Transmission range sensor (Shift switch)
6. Dropping resistor terminal for shift solenoid-C (No.3)
7. Dropping resistor terminal for shift solenoid-D (No.4)
8. Dropping resistor terminal for shift solenoid-E (No.5)
9. Dropping resistor coupler
Step Action Yes No

AUTOMATIC TRANSMISSION (4 A/T) 7B-53
INSPECTION OF TCM AND ITS CIRCUITS
TCM and its circuits can be checked at TCM wiring couplers by
measuring voltage and resistance.
INSPECTION
1) Remove TCM from vehicle referring to “TRANSMISSION
CONTROL MODULE” in this section.
2) Connect TCM couplers to TCM.
3) Check voltage at each terminal of couplers connected.CAUTION:
TCM cannot be checked by itself, it is strictly prohibited
to connect voltmeter or ohmmeter to TCM with coupler
disconnected from it.
NOTE:
As each terminal voltage is affected by the battery volt-
age, confirm that it is 11 V or more when ignition switch
is ON.
1. TCM 3. Body ground
2. Couplers
TERMINAL CIRCUITSTAN-
DARD
VOLTAGECONDITION
C431 Transmission range “P” switch10 – 14 V IG switch ON, selector lever at “P” range
0 – 1 V IG switch ON, selector lever other than “P” range
2 Transmission range “R” switch10 – 14 V IG switch ON, selector lever at “R” range
0 – 1 V IG switch ON, selector lever other than “R” range
3 Transmission range “N” switch10 – 14 V IG switch ON, selector lever at “N” range
0 – 1 V IG switch ON, selector lever other than “N” range
4 Diagnosis switch 10 – 14 VIG switch ON, diagnosis switch terminal not
grounded
5 Engine speed signal 0 – 1 V IG switch ON, leaving engine OFF
6 Output shaft speed sensor(+)––
7 Input shaft speed sensor(+)––
8 throttle opening signal––
9 Transmission range “D” switch10 – 14 V IG switch ON, selector lever at “D” range
0 – 1 V IG switch ON, selector lever other than “D” range
10 Transmission range “2” switch10 – 14 V IG switch ON, selector lever at “2” range
0 – 1 V IG switch ON, selector lever other than “2” range
11 Transmission range “L” switch10 – 14 V IG switch ON, selector lever at “L” range
0 – 1 V IG switch ON, selector lever other than “L” range

7B-54 AUTOMATIC TRANSMISSION (4 A/T)
C4312Serial data link (SUZUKI scan
tool)10 – 14 V IG switch ON
13Output shaft speed sensor
shield––
14 Output shaft speed sensor(–)––
15 Input shaft speed sensor(–)––
C442 IG power source 10 – 14 V IG switch ON
3Transmission temperature
sensor0 – 4.5 V IG switch ON
4 Brake switch 10 – 14 V IG switch ON, brake pedal depressed
5 A/C compressor0 – 2 V A/C OFF
10 – 14 V A/C ON
8 Idle up signal10 – 14 V Selector lever at “P” or “N” range
0 – 1 V Selector lever other than “P” or “N” range
10 Shift solenoid-A (No.1) 0 – 1 V IG switch ON, select lever at “P” range
11Shift solenoid-C (Dropping
resistor)0 – 1 V IG switch ON, select lever at “P” range
12Shift solenoid-D (Dropping
resistor)10 – 14 V IG switch ON, select lever at “P” range
13Shift solenoid-E (Dropping
resistor)0 – 1 V IG switch ON, select lever at “P” range
15 Ground––
16Transmission temperature
sensor ground––
17 O/D off switch0 – 1 V IG switch ON, O/D off switch ON
10 – 14 V IG switch ON, O/D off switch OFF
18Engine coolant temperature/
Barometric pressure signal––
20 A/T failure serial data 0 – 1 V IG switch ON
21 O/D OFF lamp10 – 14 V IG switch ON, O/D off switch OFF
0 – 1 V IG switch ON, O/D off switch ON
22 Lock-up solenoid 0 – 1 V IG switch ON, selector lever at “P” range
23 Shift solenoid-B (No.2) 0 – 1 V IG switch ON, selector lever at “P” range
24 Shift solenoid-C (No.3) 0 – 1 V IG switch ON, selector lever at “P” range
25 Shift solenoid-D (No.4) 2.2 – 4.9 V IG switch ON, selector lever at “P” range
26 Shift solenoid-E (No.5) 0 – 1 V IG switch ON, selector lever at “P” range TERMINAL CIRCUITSTAN-
DARD
VOLTAGECONDITION

7B-58 AUTOMATIC TRANSMISSION (4 A/T)
INSPECTION
Check selector lever for smooth and clear cut movement and
position indicator for correct indication.
For operation of selector lever, refer to the figure.
TRANSMISSION RANGE SENSOR (SHIFT
SWITCH)
REMOVAL
1) Block wheels and turn select lever to “N” range.
2) Disconnect transmission range sensor coupler and select
cable.
3) Remove transmission range sensor from transmission case.
INSPECTION
1) Disconnect transmission range sensor coupler (2).
2) Check that continuity exists at terminals shown below by
moving selector lever.
CAUTION:
Do not overhaul transmission range sensor.
1. Transmission range sensor
Terminal
Sensor
Position
P
R
N
D
2
LBAHCEDG I F

AUTOMATIC TRANSMISSION (4 A/T) 7B-59
INSTALLATION
1) Using flat tip screwdriver, turn transmission range sensor to
have the match marks (1) line up (transmission range sensor
“N” range).
2) Turn selector lever (1) to “N” range (to have the automatic
transmission to “N” range).
3) Install transmission range sensor (1) to transmission case.
Tightening torque
Transmission range sensor bolt
(a) : 18 N·m (1.8 kg-m, 13.0 lb-ft)
4) Move selector lever in cabin to each range and check the
continuity of each terminal of transmission range sensor
referring to “INSPECTION”.
5) Connect transmission range sensor coupler.
6) Check that the engine can only be started in “N” and “P”
range, but can not in “D”, “2”, “L” or “R” range. Also, check
that backup lamp come ON at “R” range.

AUTOMATIC TRANSMISSION (4 A/T) 7B-61
ADJUSTMENT
1) Turn transmission range sensor to have the match marks (1)
line up (transmission range sensor “N” range).
2) Remove adjuster (cable end) from selector pin.
3) Release lock plate (1) which restrict moving of cable end
holder (2).
4) Push cable end holder (1) out from eye-end (2) using an
appropriate tool (3) to disengage cable.
5) Shift selector lever to “N” position.
6) Apply grease to selector pin and install adjuster (cable end)
to it.
Grease : 99000-25010
7) With both selector lever and transmission range sensor kept
each “N” position, drive cable end holder (1) in until it locks
cable.
8) Slide lock plate (2) to secure cable end holder in position.
9) After selector rod was installed, check for the following.
Push vehicle with selector lever shifted to “P” range.
Vehicle should not move.
Vehicle can not be driven in “N” range.
Vehicle can be driven in “D”, “2” and “L” ranges.
Vehicle can be backed in “R” range.

7B-62 AUTOMATIC TRANSMISSION (4 A/T)
OUTPUT SHAFT SPEED SENSOR (A/T VSS)
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor – input shaft speed
sensor coupler (1).
3) Check resistance between output shaft speed sensor termi-
nals (2).
Output shaft speed sensor resistance
Standard : 160 – 200
Ω
ΩΩ Ω at 20°C (68°F)
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor – input shaft speed
sensor coupler.
3) Remove output shaft speed sensor (1) by removing its bolt.
INSTALLATION
1) Apply A/T fluid to output shaft speed sensor o-ring.
2) Install output shaft speed sensor (1) to A/T case and tighten
bolt to specified torque.
Tightening torque
Output shaft speed sensor bolt
(a) : 8 N·m (0.8 kg-m, 6.0 lb-ft)
3) Connect output shaft speed sensor – input shaft speed sen-
sor coupler.
4) Connect negative cable to battery.

AUTOMATIC TRANSMISSION (4 A/T) 7B-63
INPUT SHAFT SPEED SENSOR
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor – input shaft speed
sensor coupler (1).
3) Check resistance between input shaft speed sensor termi-
nals (2).
Input shaft speed sensor resistance
Standard : 160 – 200
Ω
ΩΩ Ω at 20°C (68°F)
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor – input shaft speed
sensor coupler.
3) Remove input shaft speed sensor (1) by removing its bolt.
INSTALLATION
1) Apply A/T fluid to input shaft speed sensor O-ring.
2) Install input shaft speed sensor (1) to A/T case and tighten
bolt to specified torque.
Tightening torque
Input shaft speed sensor bolt
(b) : 8 N·m (0.8 kg-m, 6.0 lb-ft)
3) Connect output shaft speed sensor – input shaft speed sen-
sor coupler.
4) Connect negative cable to battery.
VEHICLE SPEED SENSOR (VSS)
Refer to Section 6E for removal, installation and inspection.
THROTTLE POSITION SENSOR
INSPECTION
Check throttle position sensor referring to Section 6E.

7B-64 AUTOMATIC TRANSMISSION (4 A/T)
ENGINE COOLANT TEMP. (ECT) SENSOR
INSPECTION
Check engine coolant temp. sensor referring to Section 6E.
DROPPING RESISTOR
REMOVAL/INSTALLATION
Refer to the figure for removal/installation.
Tightening torque
Dropping resistor bolts
(a) : 20 N·m (2.0 kg-m, 14.5 lb-ft)
INSPECTION
Measure resistance between each resistor terminals.
Dropping resistor resistance
CIRCUIT RESISTANCE
Shift solenoid -C (No.3) 6.5 – 8.5
Ω
ΩΩ Ω
Shift solenoid -D (No.4) 6.5 – 8.5
Ω
ΩΩ Ω
Shift solenoid -E (No.5) 6.5 – 8.5
Ω
ΩΩ Ω
1. Resistor terminal for shift solenoid -C Circuit
2. Resistor terminal for shift solenoid -D Circuit
3. Resistor terminal for shift solenoid -E Circuit

AUTOMATIC TRANSMISSION (4 A/T) 7B-65
O/D OFF SWITCH
INSPECTION
1) Remove console box.
2) Disconnect O/D off switch coupler (1).
3) Check continuity between O/D off switch terminals.
O/D OFF switch specification
SHIFT SOLENOID VALVES AND TRANSMIS-
SION TEMPERATURE SENSOR
REMOVAL
1) Disconnect negative cable at battery.
2) Drain A/T fluid.
3) Remove A/T oil pan (1).
4) Disconnect transmission temp. sensor coupler (3).
5) Remove A/T oil strainer (2) and transmission temp. sensor
(1). O/D off switch ON OFF
Continuity Continuity No continuity
2. O/D off switch ON
3. O/D off switch OFF