2008 SUZUKI SWIFT APP

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Diagnostic Information and Procedures
A/T System CheckS7RS0B5104001
Refer to the following items for the details of each step.Step Action Yes No 1 ) Customer complaint analysis
1) Perform customer complaint analysis.
Was customer complaint analysis performed? Go to Step 2. Perform customer
complaint analysis.
2 ) DTC / freeze frame data check, record and clearance
1) Check for DTC.
Is there any DTC(s)? Print DTC or write them
down and clear them by
referring to “DTC
Clearance”. Go to Step
3.Go to Step 4.
3 ) Visual inspection
1) Perform visual inspection.
Is there any faulty condition? Repair or replace
malfunction part. Go to
St ep 11 .
Go to Step 5.
4 ) Visual inspection
1) Perform visual inspection.
Is there any faulty condition? Repair or replace
malfunction part. Go to
St ep 11 .
Go to Step 8.
5 ) Trouble symptom confirmation
1) Confirm trouble symptom.
Is trouble symptom identified? Go to Step 6.
Go to Step 7.
6 ) Rechecking and record of DTC / freeze frame data
1) Recheck for DTC referring to “DTC Check”.
Is there any DTC(s)? Go to Step 9.
Go to Step 8.
7 ) Rechecking and record of DTC / freeze frame data
1) Recheck for DTC referring to “DTC Check”.
Is there any DTC(s)? Go to Step 9.
Go to Step 10.
8 ) A/T basic check and A/T symptom diagnosis
1) Check and repair according to “A/T Basic Check” and “A/
T Symptom Diagnosis”.
Are check and repair complete? Go to Step 11. Check and repair
malfunction part(s). Go
to Step 11.
9 ) Troubleshooting for DTC
1) Check and repair according to applicable DTC flow.
Are check and repair complete? Go to Step 11. Check and repair
malfunction part(s). Go
to Step 11.
10 ) Check for intermittent problems
1) Check for interm ittent problems.
Is there any faulty condition? Repair or replace
malfunction part(s). Go
to Step 11.
Go to Step 11.
11 ) Final confirmation test
1) Clear DTC if any.
2) Perform final confirmation test.
Is there any problem symptom, DTC or abnormal condition? Go to Step 6.
End.

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Step 2. DTC / Freeze Frame Data Check, Record and Clearance
First, referring to “DTC Check”, check DTC and pending DTC. If DTC exists, print or write down DTC and freeze frame
data and then clear malfunction DTC(s) by referring to “DTC Clearance”. Malfunction DTC indicates malfunction in the
system but it is not possible to know from it whether the malfunction is occurring now or it occurred in the past and
normal condition has been restored. In order to know that, check symptom in question according to Step 5 and then
recheck DTC according to Step 6.
Diagnosing a trouble based on the DTC in this step only or fa ilure to clear the DTC in this step may result in an faulty
diagnosis, trouble diagnosis of a normal circuit or difficulty in troubleshooting which is otherwise unnecessary.
Step 3 and 4. Visual Inspection
As a preliminary step, be sure to perform visual check of the items that support proper function of the engine and
automatic transaxle referring to “Visual Inspection”.
Step 5. Trouble Symptom Confirmation
Check trouble symptoms based on information obtained in “Step 1. Customer Complaint Analysis: ” and “Step 2. DTC
/ Freeze Frame Data Check, Record and Clearance: ”.
Also, reconfirm DTC according to “DTC Confirmation Procedure” described in each DTC flow.
Step 6 and 7. Rechecking and Record of DTC and Freeze Frame Data
Refer to “DTC Check” for checking procedure.
Step 8. A/T Basic Check and A/T Symptom Diagnosis
Perform basic check of A/T according to “A/T Basic Check” first. When the end of the flow has been reached, check
the parts of the system suspected as a possible cause referring to “A/T Symptom Diagnosis” and based on symptoms
appearing on the vehicle (symptoms obtained through step s of customer complaint analysis, trouble symptom
confirmation and/or A/T basic check) and re pair or replace faulty parts, if any.
Step 9. Troubleshooting for DTC
Based on the DTC indicated in Step 6 / 7 and referring to “a pplicable DTC flow”, locate the cause of the trouble,
namely in a sensor, switch, wire harness, connector, actuator, TCM or other part and repair or replace faulty parts.
Step 10. Check for Intermittent Problem
Check parts where an intermittent trouble is easy to occur (e.g . wire harness, connector, etc.), referring to “Intermittent
and Poor Connection Inspection in Section 00” and related circuit of DTC recorded in Step 2.
Step 11. Final Confirmation Test
Confirm that the problem symptom has gone and the vehicl e is free from any abnormal conditions. If what has been
repaired is related to the malfunction DTC, clear the DTC once and check to ensure that no malfunction DTC is
indicated.

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Manual Road TestS7RS0B5104012
WARNING!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.

The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness co nnector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads. With select lever shifted to each ra nge (“L”, “2”, “3” and “D”), drive vehi cle at 1,000 rpm engine speed and then
check vehicle speed by referring to “Fixed gear position”.
If vehicle speed is not as specified in “Fix ed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position TCC (lock-up) function
pressure control does not
operate
Malfunction of TCC pressure control
solenoid valve
Inspect. If NG, replace.
Malfunction of shif t solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of brake light switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty torque converter Replace.
Condition
Possible cause Correction / Reference Item
Select lever positionFixed gear position Vehicle speed
L range
3rd gearApprox. 25.0 km/h (15.5 mile/h)
2 range
3 range
D range
R range Reverse gear Approx. 10.9 km/h (6.8 mile/h)
I3RM0B510010-01

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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
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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Troubleshooting
“P” Range TestS7RS0B5104017
1) Stop vehicle on a slope of 5 degrees or more, shift select lever to “P” range and at the same time apply parking brake.
2) After stopping engine, depress brake pedal and release parking brake.
3) Then, release brake pedal gradually and check that vehicle remains stationary.
4) Depress brake pedal and shift select lever to “N” range.
5) Then, release brake pedal gradually and check that vehicle moves.
WARNING!
Before test, make sure no one is around vehicle or down on a slope and keep watchful for safety
during test.

Troubleshooting Condition Possible cause Correction / Reference Item
Higher than standard
level in each 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.
Lower than standard level
in each 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.
Lower than standard level
only in “D” range Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Lower than standard level
only in “R” range Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Condition
Possible cause Correction / Reference Item
Vehicle moves at “P”
range or remains
stationary at “N” range Defective parking lock pawl or spring
Inspect. If NG, repair.

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No Gear Shift to 4th gearS7RS0B5104019
System Description
TCM does not shift to 4th gear under any of the following condition.
• “3” position switch is turned ON.
• Engine coolant temperature is less than 50 °C (122 °F).
• A/T fluid temperature is less than 20 °C (68 °F).
• A/T fluid temperature is more than 130 °C (266 °F) while TCM is detecting P2762, P2763 and P2764.
• TCM detects the following DTCs. P0712 / P0713 / P0717 / P0722 / P0787 / P0788 / P0961 / P0962 / P0963 / P0973 / P0974 / P0976 / P0977 / P1702
/ P1703 / P1774 / P1777
Troubleshooting
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.

Non operate TCC (lock-
up) system Faulty torque converter
Replace.
Excessive “N”
→ “D” time
lag 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.
Excessive “N”
→ “R” time
lag 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.
Poor engine brake in
downshift to “2” range Faulty O/D and 2nd coast brake
Inspect. If NG, replace.
Poor engine brake in
downshift to “L” range Faulty 1st and reverse brake
Inspect. If NG, replace.
Condition Possible cause Correction / Reference Item
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Check DTC
Is DTC P0712, P0713, P0717, P0722, P0961, P0962,
P0963, P0973, P0974, P0976, P0977, P1702, P1703,
P1774 and/or P1777 detected? Go to applicable DTC
diag. flow.
Go to Step 3.

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Transmission Warning Light Circuit Check – Light Does Not Come “ON” at Ignition Switch ONS7RS0B5104021
Troubleshooting
Transmission Warning Light Circuit Check – Light Remains “ON” at Ignition Switch ONS7RS0B5104022
TroubleshootingStep Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check DTC
Is DTC P0705, P0707, P0712, P0713, P0717, P0722,
P0787, P0788, P0961, P0962, P0963, P0973, P0974,
P0976, P0977, P1702, P1703, P1774, P1777, P2762,
P2763 and/or P2764 detected? Go to applicable DTC
diag. flow.
Go to Step 3.
3 Brake light switch signal inspection
1) With ignition switch turned ON, check voltage between
terminal “C35-20” of ECM connector and ground.
Brake light switch signal specification
Brake pedal is released: 0 – 1 V
Brake pedal is depressed: 8 – 14 V
Is result as specified? Substitute a known-
good TCM and recheck.
Mis-adjusted brake light
switch or faulty brake
light switch.
Step
Action YesNo
1 Combination meter power supply check
1) Turn ignition switch ON.
Does other indicator / warnin g lights in combination meter
comes ON? Go to Step 2.
Repair combination
meter power supply
circuit referring to “C-1
Combination Meter
Circuit Diagram (Meter)
in Section 9A”.
2 TCM power and ground circuit check
1) Check referring to “TCM Power and Ground Circuit
Check”.
Is it in good condition? Go to Step 3.
Repair or replace.
3 DTC check
1) Check DTC referring to “DTC Check”.
Is there DTC P1774? Go to applicable DTC
diag. flow.
Go to Step 4.
4 Combination meter function check
1) Turn ignition switch ON.
Does A/T selector position in dicator show correct select
lever position? Replace combination
meter.
Substitute a known-
good TCM and recheck.
Step
Action YesNo
1 Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to “DTC Check”.
Is there any DTC(s)? Perform DTC Flow to
repair and retry.
Substitute a known-
good TCM and recheck.
If OK, substitute a
known-good
combination meter and
recheck.