2006 SUZUKI SWIFT Time

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-73
DTC P1777: TCM Lost Communication with ECM (Reception Error)S7RS0B5104040
Wiring Diagram
Refer to “DTC P1774: CAN Communication Bus Off”
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform “DTC Confirmation Procedure:” and confirm
that the trouble has been corrected.

DTC detecting condition Trouble area
Reception error of communication data fo r ECM is detected more than specified
time continuously. •ECM
•TCM
• CAN circuit
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck DTC.
Is there DTC P1777? Go to Step 3.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
3 DTC check
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is there DTC P1674? Go to “DTC P1674:
CAN Communication
(Bus Off Error) in
Section 1A”.
Check ECM power and
ground circuit. If circuit
is OK, CAN
communication circuit
between ECM and ABS
hydraulic unit / control
module is open circuit.
4 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control modules for open, short and high resistance.
Is each CAN communication circuit in good condition? Check TCM power and
ground circuit. If circuit
is OK, substitute a
known-good TCM and
recheck.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 5A-74 Automatic Transmission/Transaxle:
DTC P1778: TCM Lost Communication with BCM (Reception Error)S7RS0B5104041
Wiring Diagram
Refer to “DTC P1774: CAN Communication Bus Off”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform “DTC Confirmation Procedure:” “DTC
Confirmation Procedure” and confirm that the trouble has been corrected.

DTC detecting condition Trouble area
Reception error of communication data fo r BCM is detected more than specified
time continuously. •ECM
•TCM
•BCM
• ABS control module
• CAN circuit
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Control module connector check
1) Check connection of connectors of all control modules
communicating by means by means of CAN.
2) Recheck DTC.
Is there DTC P1778? Go to Step 3.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
3 DTC check in BCM (bus off)
1) Check BCM for DTC referring to “DTC Check in Section
10B”.
Is there DTC U1073? Go to “DTC U1073 (No.
1073): Control Module
Communication Bus Off
in Section 10B”.
Go to Step 4.
4 DTC check in ABS control module
1) Check ABS control module for DTC referring to “DTC
Check in Section 4E”.
Is there DTC U1100? Go to “DTC U1100: Lost
Communication with
ECM (Reception Error)
in Section 4E”.
Go to Step 5.
5 DTC check in ECM
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is there DTC P1678? Check BCM power and
ground circuit. If circuit
is OK, substitute a
known-good BCM and
recheck.Go to Step 6.
6 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control modules for open, short and high resistance.
Is each CAN communication circuit in good condition? Check TCM power and
ground circuit. If circuit
is OK, substitute a
known-good TCM and
recheck.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-75
DTC P1878: Torque Converter Clutch ShudderS7RS0B5104042
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 tester, on a level road.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Drive vehicle with 3rd or 4th gear in “D” range and slip c ontrolled lock-up ON for 20 seconds or longer referring to
“Automatic Gear Shift Table”.
5) Stop vehicle.
6) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting DTC detecting condition
Trouble area
The acceleration slip control function stops when the variation in the output
revolution speed of the specified amp litude and specified cycle is detected
within a specified period of time. When t he specified variation is not detected
after the acceleration slip control stops. • Mismatching ATF
• Torque converter clutch malfunction
• Valve body
•TCM
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Change A/T fluid referring to “A/T Fluid Change”. Check DTC after performing “DTC Confirmation Procedure”.
Is DTC P1878 still indicated? Faulty torque converter
clutch.
Replace torque
converter.System is in good
condition.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-85
Reference waveform No. 1
Pressure control solenoid valve signal at engine idling.
Reference waveform No. 2
TCC pressure control solenoid valve signal at engine
idling.Reference waveform No. 3
CAN communication line (High & Low) signal at engine
idling.
Reference waveform No. 4
Input shaft speed sensor signal at engine idling.
Measurement
terminal
CH1: “C34-4” to “C34-1”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 20 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed with “P” range.
Measurement
terminal CH1: “C34-5” to “C34-1”
Oscilloscope
setting CH1: 5 V/DIV
Time: 2 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed with “P” range
I3RM0B510029-01
I4RS0A510024-01
Measurement
terminal CH1: “C34-7” to “C34-1”
CH2: “C34-17” to “C34-1”
Oscilloscope
setting CH1: 1 V/DIV
TIME: 100
µs/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed with “P” range.
Measurement
terminal CH1: “C35-6” to “C34-1”
Oscilloscope
setting CH1: 2 V/DIV
TIME: 10 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed with “P” range.
I3RM0B510030-01
I3RM0B510027-01

Downloaded from www.Manualslib.com manuals search engine 5A-86 Automatic Transmission/Transaxle:
Reference waveform No. 5
Output shaft speed sensor signal at vehicle speed 60
km/h (37 mile/h).
TCM Power and Ground Circuit CheckS7RS0B5104046
Wiring DiagramMeasurement
terminal
CH1: “C35-25” to “C34-1”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Drive vehicle at 60 km/h (37 mile/h).
I3RM0B510028-01
BLK
BLK
BLK
C34-1
C34-23
C34-6YEL/BLKYEL/BLU
LT GRN/BLK
+BB
C34-24WHT/RED1
23
6
24 23 1
C34C35
[A]
I4RS0A510023-01
1. TCM
3. Ignition switch
2. A/T relay [A]: Terminal arrangement of TCM connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine 5A-94 Automatic Transmission/Transaxle:
5) Turn ignition switch to LOCK position.
6) Remove parking brake cover and console box.
7) Detach cable end (1) from interlock cam (2) while
pressing claws (3) of interlock cam boss.
At this time, be careful no t to cause damage to its
claws.
Detach cable casing cap (4 ) from selector bracket
(5) while pressing check hook.
8) Remove interlock cable.
Installation 1) Lay interlock cable to its original cabling route.
2) Turn ignition switch to ACC position.
3) Insert cable casing cap (1) into key cylinder cover (2) securely. 4) Pull out lock button (1) of selector side cable end (2).
4
5 31
2
4
I4RS0A510054-01
1 2
3
4
5 6 7
8
2
I6RS0C510013-01
1. Key interlock cable 4. Key cylinder cover7. Brake switch bracket
2. Clamp 5. Select lever assembly 8. Wiring harness
3. Steering lock assembly / Steering lock unit (Keyless start model) 6. EPS control module
9. Marking
1
2
I2RH01510085-01
1
1
2
I2RH01510086-01

Downloaded from www.Manualslib.com manuals search engine 5A-104 Automatic Transmission/Transaxle:
4) Apply grease to new differential side oil seal lips.: Grease 99000–25030 (SUZUKI Super Grease C)
5) Install new differential side oil seals (1) by using special tool.
Special tool
(C): 09944–88220
(D): 09924–74510
Differential side oil seal installing depth
Right side “a”: 2.6 – 3.6 mm (0.10 – 0.14 in.)
Left side “b”: 3.8 – 4.8 mm (0.15 – 0.19 in.)
6) Install drive shaft referring to “Front Drive Shaft Assembly Removal and Installation in Section 3A”.
7) Pour A/T fluid referring to “A/T Fluid Change”.
A/T Fluid Cooler Hoses ReplacementS7RS0B5106029
The rubber hoses for the A/T fluid cooler should be
checked at specified interval. If replacing them, be sure
to note the following.
• to replace clamps at the same time
• to insert hose as far as its limit mark
• to clamp clamps securely
[A]: Right side [B]: Left side
I2RH0B510068-01
1. Inlet hose (Outlet from A/T fluid cooler)
2. Outlet hose (Inlet to A/T fluid cooler)
1 2I4RS0A510057-01

Downloaded from www.Manualslib.com manuals search engine 5B-4 Manual Transmission/Transaxle:
7) Apply sealant to thread of level / filler plug, and then
tighten it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)
Tightening torque
Transaxle oil level / filler plug (b): 21 N·m (2.1
kgf-m, 15.5 lb-ft)Differential Side Oil Seal ReplacementS7RS0B5206002
1) Lift up vehicle and drain transaxle oil.
2) Remove front drive shaft and/or center shaft referring to “Front Driv e Shaft Assembly Removal
and Installation in Section 3A”.
3) Remove oil seal (1) using special tool.
Special tool
(A): 09913–50121
4) Install oil seal (1) facing its spring side inward. Use special tool and hammer for installation.
Special tool
(A): 09913–85210
5) Apply grease to oil seal lip and at the same time check drive shaft where oil seal contacts and make
sure of its smoothness.
“A”: Grease 99000–25011 (SUZUKI Super
Grease A)
6) Insert front drive shaft and/or center shaft referring to “Front Drive Shaft A ssembly Removal and
Installation in Section 3A”.
7) Fill transaxle oil as specified referring to “Manual Transaxle Oil Change”, and make sure that oil has
been sealed with oil seal.
I4RS0A520001-01
(A)
1
I4RH01520003-01
IYSY01520005-01