2007 SUZUKI SWIFT Engine diagnos

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-27
Road TestS7RS0B5104011
This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a
level road.
WARNING!
• Carry out test in very little traffic area to prevent an accident.
• Test requires 2 persons, a driver and a tester.

1) Warm up engine.
2) With engine running at idle, shift select lever “D” range.
3) Accelerate vehicle speed by depressing accelerator pedal gradually.
4) While driving in “D” range, check if gear shift and lock-up occur properly as shown in “Automatic Gear Shift Table”.
Troubleshooting 9 Proceed to “Trouble Diag
nosis 2” in “A/T Symptom
Diagnosis”.
Is trouble identified? Repair or replace faulty
parts.
Proceed to “Trouble
Diagnosis 3” in “A/T
Symptom Diagnosis”.
Step Action Yes No
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty torque converter Replace.
No gear shift as 3rd gear Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
1
→ 2 upshift fails to
occur Malfunction of shif
t solenoid valve-B Inspect. If NG, replace.
Malfunction of output 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.
Faulty valve body component Replace valve body assembly.
Faulty 2nd brake Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
2
→ 3 upshift fails to
occur Malfunction of shif
t solenoid valve-A Inspect. If NG, replace.
Malfunction of output 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.
Faulty valve body component Replace valve body assembly.
Faulty direct clutch Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine 5A-34 Automatic Transmission/Transaxle:
A/T Symptom DiagnosisS7RS0B5104018
Trouble Diagnosis 1
Electrical repair
Condition Possible cause Correction / Reference Item
Excessive shift shock Shift solenoid valve-A and/or -B circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty only
when N → D or 3 ↔ 4 shifting Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor “A” Circuit in Section 1A”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
No gear shift as 3rd gear Shift solenoid valve-A and/or -B circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
Poor 1
→ 2 shift Shift solenoid valve-B circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.

Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Excessive shift shock Engine abnormal condition Inspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -B 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 transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shifting Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shifting Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensor Inspect referring to “CKP Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 1
→ 2 shift Malfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 2
→ 3 shift Malfunction of shift solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine 5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repairNon operate TCC (lock-
up) system
Malfunction of TCC solenoid valve
Inspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -B 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 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.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect referring to “ECT Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switch Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Excessive “N”
→ “D” or
“N”
→ “R” time lag Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Pressure control solenoid valve circuit
faulty Inspect. If NG, replace valve body assembly.
Clogged oil strainer Replace.
Faulty valve body component Replace valve body assembly.
Condition Possible cause Correction / Reference Item
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Faulty torque converter Replace.
Excessive “N”
→ “D” shift
shock Faulty forward clutch
Inspect. If NG, replace.
Excessive “N”
→ “R” shift
shock Faulty reverse clutch
Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Poor 1
→ 2 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 3 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Poor 3
↔ O/D shift,
excessive shock or
slippage Faulty forward clutch
Inspect. If NG, replace.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Poor 3
→ 2 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 1 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-43
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.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-65
DTC TroubleshootingStep Action Yes No 1 Was “Automatic Transaxle Diagnostic Flow Table”
performed? Go to Step 2. Go to “A/T System
Check”.
2 Check shift solenoid valve resistance
1) Turn ignition switch OFF.
2) Disconnect valve body harness connector (1), (2) on
automatic transmission.
3) Check for proper connection to solenoid at “BRN” (for shift solenoid valve-A (No.1)) or “BLK/YEL” (for shift
solenoid valve-B (No.2)) circuit.
Check resistance of solenoid valve.
Shift solenoid valve resistance
Between shift solenoid valve-A (No.1) terminal (3)
and transaxle: 11 – 15 Ω at 20 °C (68 °F)
Between shift solenoid valve-B (No.2) terminal (4)
and transaxle: 11 – 15 Ω at 20 °C (68 °F)
Is check results satisfactory? Go to Step 3. Replace applicable shift
solenoid valve or valve
body harness.
3 Check shift solenoid valve circuit for ground short
1) Disconnect TCM connectors.
2) Check for proper connection to TCM at terminals “C34-
16” (for shift solenoid valve-A (No.1)) or “C34-15” (for
shift solenoid valve-B (No.2)).
3) If connection is OK, check continuity between terminal
“C34-16” (for shift solenoid valve-A (No.1)) or “C34-15”
(for shift solenoid valve-B (No.2)) of disconnected
harness side TCM connector and ground.
Is continuity indicated? DTC P0973: “BRN”
circuit shorted to
ground.
DTC P0976: “BLK/YEL”
circuit shorted to
ground.
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.
1
6
7
89
10 5
43 2
1
23
4
I3RM0B510022-01

Downloaded from www.Manualslib.com manuals search engine 5A-84 Automatic Transmission/Transaxle:
Connector “C35”
Terminal Wire color Circuit Standard
voltage Condition
1RED Transmission range
sensor (“R” range) 8 – 14 V Ignition switch ON, select lever at “R” range
0 – 1 V Ignition switch ON, select lever at other than “R” range
2— — — —
3— — — —
4— — — —
5— — — —
6WHT Input shaft speed
sensor (+) 2 – 3 V Ignition switch turned ON, engine stops.
*(“Referenc
e waveform No. 4: ”) While engine running.
(Output signal is waveform. Waveform frequency varies
depending on output shaft speed. (16 pulses are
generated par 1 input shaft revolution.))
7GRN Transmission range
sensor (“D” range) 8 – 14 V Ignition switch ON, select lever at “D” range
0 – 1 V Ignition switch ON, select lever at other than “D” range
8 GRN/ORN Transmission range
sensor (“N” range) 8 – 14 V Ignition switch ON, select lever at “N” range
0 – 1 V Ignition switch ON, select lever at other than “N” range
9— — — —
10 — — — — 11 — — — —
12 PPL/YEL Diagnosis switch (if
equipped) 8 – 14 V Ignition switch ON
13 — — — —
14 — — — —
15 — — — —
16 BLK Input shaft speed
sensor (–) 2 – 3 V Ignition switch ON, engine at stop
17 — — — —
18 LT G R N /
BLK Transmission range
sensor (“L” range) 8 – 14 V Ignition switch ON, select lever at “L” range
0 – 1 V Ignition switch ON, select lever at other than “L” range
19 GRN/YEL Transmission range
sensor (“2” range) 8 – 14 V Ignition switch ON, select lever at “2” range
0 – 1 V Ignition switch ON, select lever at other than “2” range
20 PNK/BLK Transmission range
sensor (“P” range) 8 – 14 V Ignition switch ON, select lever at “P” range
0 – 1 V Ignition switch ON, select lever at other than “P” range
21 — — — —
22 — — — —
23 PPL/WHT Data link connector 8 – 14 V Ignition switch ON
24 — — — —
25 PPL Output shaft speed
sensor 8 – 14 V Ignition switch ON
*0 – 1 V ↑↓
10 – 14 V
(“Reference waveform No. 5: ”) Vehicle running.
(Sensor signal is pulse. Pulse frequency varies
depending on vehicle speed. (8190 pulses are
generated par 60 km/h, 37.5 mile/h)
26 — — — —

Downloaded from www.Manualslib.com manuals search engine Manual Transmission/Transaxle: 5B-3
Diagnostic Information and Procedures
Manual Transaxle Symptom DiagnosisS7RS0B5204001
Repair Instructions
Manual Transaxle Oil ChangeS7RS0B5206001
1) Before changing or inspecting oil, be sure to stop engine and lift vehicle horizontally.
2) With vehicle lifted up, check oil level and leakage. If leakage exists, correct it.
NOTE
Whenever vehicle is hoisted for any other
service work than oil change, also be sure to
check for oil leakage.

3) Remove oil filler plug (2).
4) Remove drain plug (1), and drain old oil. 5) Apply sealant to thread of drain plug (1), and tighten
it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)
Tightening torque
Transaxle oil drain plug (a): 21 N·m (2.1 kgf-m,
15.5 lb-ft)
6) Pour new specified oil unt il oil level reaches bottom
of oil filler plug hole (3) as shown in figure.NOTE
It is highly recommended to use API GL-4
75W-90 gear oil.

Transaxle oil specification
: API GL-4 (For SAE classification, refer to
viscosity chart [A] in figure.)
Manual transaxle oil capacity
Reference: 2.0 liters (4.2/3.5 US/Imp. pt)
Condition Possible cause Correction / Reference Item
Gears slipping out of
mesh Worn shift fork shaft
Replace.
Worn shift fork or synchronizer sleeve Replace.
Weak or damaged locating springs Replace.
Worn bearings on input shaft or
countershaft Replace.
Worn chamfered tooth on sleeve and
gear Replace sleeve and gear.
Hard shifting Maladjusted gear select control cable Adjust.
Inadequate or insufficient lubricant Replenish.
Improper clutch pedal free travel Replace clutch master cylinder or clutch pedal
arm.
Distorted or broken clutch disc Replace.
Damaged clutch pressure plate Replace clutch cover.
Worn synchronizer ring Replace.
Worn chamfered tooth on sleeve or gear Replace sleeve or gear.
Worn gear shift / select control cables
joint Replace.
Distorted shift shaft Replace.
Worn gear shift / select control cables Replace.
Noise Inadequate or insufficient lubricant Replenish.
Damaged or worn bearing(s) Replace.
Damaged or worn gear(s) Replace.
Damaged or worn synchronizer parts Replace.