2006 SUZUKI SWIFT Nut

Downloaded from www.Manualslib.com manuals search engine 5A-30 Automatic Transmission/Transaxle:
Troubleshooting
Engine Brake TestS7RS0B5104013
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 select 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 select lever is shifted down to “L” range.
3) Engine brake should operate in the test.
Troubleshooting
Stall TestS7RS0B5104014
This test is to check overall performance of automatic tr ansaxle and engine by measuring stall speed at “D” and “R”
ranges. Be sure to perform this test only when transaxle fluid is at normal operating temperature and its level is
between FULL and LOW marks.
CAUTION!
• Do not run engine at stall more than 5 seconds continuously, or fluid temperature may rise excessively high.
• After performing stall test, be su re to leave engine running at idle for longer than 1 minute before
another stall test.

1) Apply parking brake and block wheels.
2) Install tachometer.
3) Start engine with select lever shifted to “P” range.
4) Depress brake pedal fully.
5) Shift select lever to “D” range and depress accelerator pedal fully while watching tachometer. Read engine rpm quickly when it has become constant (stall speed).
6) Release accelerator pedal immediately after stall speed is checked.
7) In the same way, check stall speed in “R” range.
8) Stall speed should be withi n the following specification.
Engine stall speed
Standard: 2100 – 2400 rpm Condition Possible cause Correction / Reference Item
Operated gear is not
correct Faulty valve body component
Replace valve body assembly.
Faulty clutch or brake Inspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Failure to operate when
shifted down to “2” range Faulty valve body component
Replace valve body assembly.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Failure to operate when
shifted down to “L” range Faulty valve body component
Replace valve body assembly.
Faulty 1st and reverse brake Inspect. If NG, replace.

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Troubleshooting
Time Lag TestS7RS0B5104015
This test is to check conditions of clutch, brake and fluid pressure. “Time lag” means time elapsed since select lever is
shifted with engine idling till shock is felt.
1) With chocks placed before and behind front and rear wheels respectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from “N” to “D” range an d measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from “N” to “R” range.
Gear shifting time lag
“N” → “D”: Less than 0.7 sec.
“N” → “R”: Less than 1.2 sec.
NOTE
• When repeating this test, be sure to wait at least one minute after select lever is shifted back to “N”
range.
• Engine should be warmed up fully for this test.
• Repeat test 3 times and take average of those data for final time lag data.

Condition Possible cause Correction / Reference Item
Lower than standard level
in both “D” and “R” range Engine output torque failure
Inspect and repair engine.
Faulty one-way clutch of torque
converter Replace torque converter.
Higher than standard
level in “D” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in “R” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery reverse clutch Inspect. If NG, replace.
Slippery 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in both “D” and “R”
range Malfunction of pressure control solenoid
valve (Low line pressure)
Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Leakage from both “D” and “R” range
fluid pressure circuit Replace valve body assembly.

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Troubleshooting
Line Pressure TestS7RS0B5104016
Purpose of this test is to check operat ing conditions of each part by measuring fluid pressure in fluid pressure line.
Line pressure test requires the following conditions.
• Automatic fluid is at normal operating temperature (70 – 80 °C / 158 – 176 °F).
• Fluid is replenished to proper level (between FULL and LOW on dipstick).
• Air conditioner switch is turned OFF.
1) Apply parking brake securely and place chocks against wheels.
2) Remove fluid pressure check hole plug bolt.
3) Attach oil pressure gauge to fluid pr essure check hole in transaxle case.
Special tool
(A): 09925-37811-001
CAUTION!
After attaching oil pressure gauge, check that no fluid leakage exists.

4) Depress foot brake fully, run engine at idle and stall then check fluid pressure in “D” or “R” range.
CAUTION!
• Do not continue running engine at stall speed longer than 5 seconds.
• After performing line pressure test, be sure to leave engine running at idle for longer than one minute before performing another line pressure test.

Automatic transaxle line pressure
Condition Possible cause Correction / Reference Item
“N”
→ “D” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
“N”
→ “R” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
“D” range
“R” range
At idle speed 3.8 – 4.2 kg/cm2, 54 – 60psi 5.9 – 6.9 kg/cm2, 84 – 98 psi
At stall speed 12.1 – 13.4 kg/cm2, 172 – 191 psi 16.8 – 19.5 kg/cm2, 239 – 277 psi

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DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM memo ry by using scan tool.
3) Start engine and shift select lever to “D” range.
4) Start vehicle and increase vehicle speed to 40 km/h (25 mile/h) or more for 1 minutes.
5) Stop vehicle and turn ignition switch OFF.
6) Repeat Step 3) to 4) one time.
7) Stop vehicle and check DTC.
DTC Troubleshooting Step Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Do you have SUZUKI scan tool? Go to Step 3.Go to Step 4.
3 Check transmission range sensor (switch) circuit for
operation
Check by using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF.
2) Turn ignition switch ON and check transmission range signal (P, R, N, D, 3, 2 or L) on display when shifting
select lever to each range.
Is applicable range indicated? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”
Go to Step 5.
4 Check transmission range sensor (switch) circuit for
operation
Check by not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminals “C35-1”, “C35-7”, “C35-8”,
“C35-18”, “C35-19” and “C35-20” respectively with
select lever shifted to each range.
Taking terminal “C35-19” as an example, is battery
voltage indicated only when se lect lever is shifted to “2”
range and 0 V for other ranges as shown in the following
table.
Check voltage at other terminals likewise, referring to the
following table.
Are check results satisfactory? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 5.
5 1) Check select cable for adjustment referring to “Select Cable Adjustment”.
Is it adjusted correctly? Go to Step 6.
Adjust.
6 Check transmission range sensor (switch) for
installation position
1) Shift select lever to “N” range.
2) Check that “N” reference line on sensor and needle
direction shaped on lock washer are aligned.
Are they aligned? Go to Step 7.
Adjust.

Downloaded from www.Manualslib.com manuals search engine 5A-48 Automatic Transmission/Transaxle:
Table for Step 4
DTC P0712: Transmission Fluid Temperature Sensor “A” Circuit LowS7RS0B5104025
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

7 1) Check transmission range sensor (switch) referring to “Transmission Range Sensor (Shift Switch) Inspection
and Adjustment”.
Are check results satisfactory? “RED/BLK”, “PNK/BLK”,
“RED”, “GRN/ORN”,
“GRN”, “GRN/YEL” or
“LT GRN/BLK” circuit
open or short to ground.
If wires and connections
are OK, substitute a
know-good TCM and
recheck.Replace transmission
range sensor.
Step Action Yes No
Terminal
C35-20 C35-1 C35-8 C35-7 C35-19 C35-18
Select lever position P8 – 14 V0 V0 V0 V0 V0 V
R 0 V 8 – 14 V 0 V 0 V 0 V 0 V
N 0 V 0 V 8 – 14 V 0 V 0 V 0 V
D or 3 0 V 0 V 0 V 8 – 14 V 0 V 0 V 20 V0 V0 V0 V8 – 14 V0 V
L0 V0 V0 V0 V0 V8 – 14 V
5V
C34-11
C34-12
LT GRN
ORN
2 3
12 11
C34C35
[A]
1
I4RS0A510011-01
1. TCM 3. A/T
2. Transmission fluid temperature sensor 4. Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission temperature sensor terminal voltage is less
than specified value for 5 minutes or more after turning
ignition switch ON. • Transmission fluid temperature sensor or its circuit
malfunction
•TCM

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1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory and start engine.
3) Keep engine running at idle speed for 10 minutes or more.
4) Stop vehicle and check DTC.
DTC Troubleshooting
DTC P0713: Transmission Fluid Temperature Sensor “A” Circuit HighS7RS0B5104026
Wiring Diagram
DTC Detecting Condition and Trouble Area Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check transmission fluid temperature circuit for ground
short
1) Check continuity between terminal “C34-11” of
disconnected harness side TCM connector and ground.
Is continuity indicated? “LT GRN” circuit shorted
to ground.
Go to Step 3.
3 Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to “Transmission Fluid Temperature Sensor Inspection”.
Is result satisfactory? Intermittent trouble or
faulty TCM. Check for
intermittent referring to
“Intermittent and Poor
Connection Inspection
in Section 00”. If OK,
substitute a known-
good TCM and recheck.Replace transmission
fluid temperature
sensor.
5V
C34-11
C34-12
LT G R N
ORN
2
3
12 11
C34C35
[A]
1
I4RS0A510011-01
1. TCM 3. A/T
2. Transmission fluid temperature sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission fluid temperature sensor terminal voltage is
more than specified value and sensor variation is less than
specified value even though engine was running in “R”, “D”,
“3”, “2” or “L” range for 15 minutes after starting engine. • Transmission fluid temperature sensor or its circuit
malfunction
•TCM

Downloaded from www.Manualslib.com manuals search engine 5A-50 Automatic Transmission/Transaxle:
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ig nition switch OFF, if available.
2) Clear DTC in TCM memory and start engine.
3) Start vehicle and increase vehicle speed to about 40 km/h (25 mile/h) for 20 minutes or more.
4) Stop vehicle and check DTC.
DTC Troubleshooting Step Action Yes No 1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check transmission fluid temperature circuit for open
1) Turn ignition switch OFF.
2) Disconnect TCM connectors from TCM.
3) Check for proper connection to transmission fluid
temperature sensor at terminals “C34-11” and “C34-12”.
4) If OK, check continuity between terminals “C34-11” and “C34-12” of disconnected harness side TCM connector.
Is continuity indicated? Go to Step 3. “LT GRN” or “ORN”
circuit open.
3 Check transmission fluid temperature circuit for IG
short
1) Cool down A/T fluid te mperature under ambient
temperature.
2) Connect TCM connectors to TCM with ignition switch OFF.
3) Turn ignition switch ON.
4) Measure voltage between terminal “C34-11” of TCM connector and ground.
Is it 4.6 V or more? “LT GRN” circuit shorted
to power circuit.
If circuit is OK, go to
St ep 4 .
Intermittent trouble or
faulty TCM.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good TCM and
recheck.
4 Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to “Transmission Fluid Temperature Sensor Inspection”.
Is result satisfactory? Intermittent trouble or
faulty TCM.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good TCM and
recheck.Replace transmission
fluid temperature
sensor.

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DTC P0717: Input / Turbine Speed Sensor “A” Circuit MalfunctionS7RS0B5104027
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ig nition switch OFF, if available.
2) Clear DTC in TCM memory and start engine.
3) Shift select lever to “D” range and drive vehicle at 50 km /h (31 mile/h) or more with 3rd gear at least for 5 minutes.
4) Stop vehicle and check DTC.
DTC Troubleshooting
1. TCM 2. Input shaft speed sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
No input shaft speed sensor signal is detected although
output shaft speed sens or signals are detected. • Input shaft speed sensor or its circuit malfunction
• Improper input shaft speed sensor installation
• Damaged direct clutch drum
• Foreign material attachment to sensor or drum
•TCM
C35-6
2.5VWHT
BLKC35-16
1
2
C34
16
6
C35
[A]
I4RS0A510012-01
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Check input shaft speed sensor circuit
1) Disconnect TCM connectors with ignition switch OFF.
2) Check for proper connection to input shaft speed sensor
at “C35-6” and “C35-16” terminals.
3) If OK, check resistance of sensor circuit.
Input shaft speed sensor specification
Between terminals “C35-6” and “C35-16”: 560 – 680
Ω at 20 °C (68 °F)
Between terminal “C35-6” / “C35-16” and ground: No
continuity
Are check result satisfactory? Go to Step 4. Go to Step 3.