CAN bus SUZUKI SWIFT 2007 2.G Service Owner's Guide
Page 626 of 1496
Downloaded from www.Manualslib.com manuals search engine 4F-52 Electronic Stability Program: 
DTC U1140: Lost Communication with BCM (Reception Error)S7RS0B4604045
Wiring Diagram
Refer to “Wiring Diagram” under “DTC U1073: Control Module Communication Bus Off”.
DTC Detecting Condition and Trouble Area3
Check each control module connectors
1) Check connection of connectors of all control modules 
communicating by means of CAN.
2) Check DTC for ESP ®.
Is DTC U1126 detected? Go to Step 4. Check for intermittent 
trouble referring to 
“Intermittent and Poor 
Connection Inspection 
in Section 00”.
4 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of ESP ® control module, BCM 
and steering angle sensor  communicating by means of 
CAN.
3) Check CAN communication circuit for open, short and  high resistance.
• Between ESP ® control module and BCM
• Between steering angle sensor and BCM
Is each CAN communication circuit in good condition? Repair or replace the 
CAN communication 
line.
Go to Step 5.
5 CAN communication circuit check
1) Disconnect connectors of all control modules 
communicating by means of CAN.
2) Check CAN communication circuit between control  modules other than Step 4 for open, short and high 
resistance.
Is each CAN communication circuit in good condition? Go to Step 6. Repair or replace the 
CAN communication 
line.
6 DTC check for ESP®
1) Connect connectors of disconnected control modules 
communicating by means of CAN.
2) Disconnect each connector. •ECM
• Keyless start control module
• Combination meter
• Steering angle sensor
•BCM
3) Check DTC for ESP ®.
Is DTC U1126 detected? Check ESP
® control 
module power and 
ground circuit. If circuits 
are OK, substitute a 
known-good ESP ® 
hydraulic unit / control 
module assembly and 
recheck. Check applicable 
control module power 
and ground circuit. If 
circuit is OK, substitute 
a known-good 
applicable control 
module and recheck.
Step Action Yes No
DTC Detecting Condition
Trouble Area
BCM message data is missing from CAN communication. • CAN communication circuit
•BCM
• ESP® control module  
Page 627 of 1496
Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program:  4F-53
DTC TroubleshootingStep Action Yes No 1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2. Go to “Electronic 
Stability Program 
System Check”.
2 DTC check for ESP®
1) Check DTC for ESP ®.
Is DTC U1140 and DTC U1073 detected together? Go to “DTC U1073: 
Control Module 
Communication Bus 
Off”.Go to Step 3.
3 DTC check for BCM
1) Check DTC for BCM.
Is DTC U1073 detected? Go to “DTC U1073 (No. 
1073): Control Module 
Communication Bus Off 
in Section 10B”.Go to Step 4.
4 Check each control module connectors
1) Check connection of connectors of all control modules 
communicating by means of CAN.
2) Check DTC for ESP ®.
Is DTC U1140 detected? Go to Step 4. Check for intermittent 
trouble referring to 
“Intermittent and Poor 
Connection Inspection 
in Section 00”.
5 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of ESP ® control module and 
BCM communicating by means of CAN.
3) Check CAN communication circuit between ESP®  
control module and BCM for open, short and high 
resistance.
Is each CAN communication circuit in good condition? Repair or replace the 
CAN communication 
line.
Go to Step 6.
6 CAN communication circuit check
1) Disconnect connectors of all control modules 
communicating by means of CAN.
2) Check CAN communication circuit between control  modules other than Step 5 for open, short and high 
resistance.
Is each CAN communication circuit in good condition? Go to Step 7. Repair or replace the 
CAN communication 
line.
7 DTC check for ESP®
1) Connect connectors of disconnected control modules 
communicating by means of CAN.
2) Disconnect each connector. •ECM
• Keyless start control module
• Combination meter
• Steering angle sensor
•BCM
3) Check DTC for ESP ®.
Is DTC U1140 detected? Check ESP
® control 
module power and 
ground circuit. If circuits 
are OK, substitute a 
known-good ESP ® 
hydraulic unit / control 
module assembly and 
recheck. Check applicable 
control module power 
and ground circuit. If 
circuit is OK, substitute 
a known-good 
applicable control 
module and recheck.  
Page 641 of 1496
Downloaded from www.Manualslib.com manuals search engine Table of Contents 5- i
5
Section 5
CONTENTS
Transmission / Transaxle
Precautions ................................................. 5-1
Precautions............................................................. 5-1
Precautions on Transmission / Transaxle ............. 5-1
Automatic Transmission/Transaxle ....... 5A-1
Precautions........................................................... 5A-1Precautions in Diagnosing Trouble ..................... 5A-1
Precautions for Disassembly and Reassembly ...................................................... 5A-1
General Description ............................................. 5A-3 A/T Description ................................................... 5A-3
Clutch / Brake / Planetary Gear Function of Automatic Transaxle ......................................... 5A-6
Table of Component Operation ........................... 5A-7
Brake Interlock System Construction .................. 5A-8
A/T Diagnosis General Description ..................... 5A-8
On-Board Diagnostic System Description ........... 5A-8
CAN Communication System Description........... 5A-9
Schematic and Routing Diagram ...................... 5A-10 Transmission Control  Module (TCM) Wiring 
Diagram .......................................................... 5A-10
Automatic Gear Shift Table ............................... 5A-12
Component Locatio n ......................................... 5A-13
Electronic Shift Cont rol System Components 
Location .......................................................... 5A-13
Diagnostic Information and Procedures .......... 5A-15 A/T System Check ............................................ 5A-15
Visual Inspection ............................................... 5A-18
Malfunction Indicator Lamp  (MIL) Check .......... 5A-18
Transmission Warning Ligh t Check .................. 5A-18
DTC Table ......................................................... 5A-19
DTC Check ....................................................... 5A-20
DTC Clearance ................................................. 5A-20
Fail-Safe Table ................ .................................. 5A-21
Scan Tool Data ................................................. 5A-23
A/T Basic Check ............................................... 5A-26
Road Test ......................................................... 5A-27
Manual Road Test ........... .................................. 5A-29
Engine Brake Test ............................................ 5A-30
Stall Test ........................................................... 5A-30
Time Lag Test ................................................... 5A-31
Line Pressure Test .......... .................................. 5A-32
“P” Range Test.................................................. 5A-33
A/T Symptom Diagnosis ..... .............................. 5A-34 No Gear Shift to 4th gear .................................. 5A-41
No Lock-Up Occurs ........................................... 5A-42
Transmission Warning Light Circuit Check – 
Light Does Not Come “ON” at Ignition Switch 
ON ................................................................... 5A-43
Transmission Warning Light Circuit Check –  Light Remains “ON” at Ignition Switch ON ...... 5A-43
DTC P0602: Control Module Programming  Error ................................................................ 5A-44
DTC P0705: Transmission Range Sensor  Circuit Malfunction (PRNDL input) .................. 5A-44
DTC P0707: Transmission Range Sensor  Circuit Low ...................................................... 5A-46
DTC P0712: Transmission Fluid Temperature  Sensor “A” Circuit Low ... ................................. 5A-48
DTC P0713: Transmission Fluid Temperature  Sensor “A” Circuit High .. ................................. 5A-49
DTC P0717: Input / Turbine Speed Sensor “A”  Circuit Malfunction........................................... 5A-51
DTC P0722: Output Speed Sensor Circuit No  Signal .............................................................. 5A-52
DTC P0787: Shift / Timing Solenoid Low .......... 5A-54
DTC P0788: Shift / Timing Solenoid High ......... 5A-56
DTC P0961: Pressure  Control Solenoid “A” 
Control Circuit Range / Performance .............. 5A-58
DTC P0962: Pressure  Control Solenoid “A” 
Control Circuit Low .......................................... 5A-60
DTC P0963: Pressure  Control Solenoid “A” 
Control Circuit High ......................................... 5A-62
DTC P0973 / P0976: Shift Solenoid “A”  Control Circuit Low / Shift Solenoid “B” 
Control Circuit Low .......................................... 5A-64
DTC P0974 / P0977: Shift Solenoid “A” / Shift  Solenoid “B” Control Circuit  High .................... 5A-66
DTC P1702: Internal Co ntrol Module Memory 
Check Sum Error............................................. 5A-68
DTC P1703: Can Invalid Data - TCM ................ 5A-68
DTC P1723: Range Select Switch  Malfunction ...................................................... 5A-69
DTC P1774: CAN Communication Bus Off ....... 5A-71
DTC P1777: TCM Lost Communication with  ECM (Reception Error).................................... 5A-73
DTC P1778: TCM Lost Communication with  BCM (Reception Error).................................... 5A-74  
Page 663 of 1496
Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle:  5A-19
DTC TableS7RS0B5104005
NOTE
• A: Driving cycles when transmission warning light lighting and storing DTC in TCM memory.
• *1: Transmission warning light does not light up but TCM detects and stores DTC.
• For details of driving cycle, refer to  “On-Board Diagnostic System Description”.
 
DTC No.Detecting item Detecting condition
(DTC will set when detecting) A
 )  P0602 Control module  programming error D ata programming error. *1, 1 driving cycle
 )  P0705 Transmission range sensor circuit 
malfunction (PRNDL input) Multiple signals are inputted 
simultaneously. 1 driving cycle
 )  P0707 Transmission range sensor circuit 
low No sensor signal is inputted.
2 driving cycles
 )  P0712 Transmission fluid temperature 
sensor “A” circuit low Sensor output voltage is too low.
1 driving cycle
 )  P0713 Transmission fluid temperature 
sensor “A” circuit high Sensor output voltage is too high.
1 driving cycle
 )  P0717 Input / Turbine speed sensor circuit 
no signal No sensor signal is detected although output 
speed sensor signal is inputted.
1 driving cycle
 )  P0722 Output speed sensor circuit no signal No sensor signal is inputted although input 
speed sensor signal is inputted. 1 driving cycle
 )  P0787 Shift / Timing solenoid low Voltage of timing solenoid terminal is low 
although TCM is commanding timing solenoid 
to turn ON. 1 driving cycle
 )  P0788 Shift / Timing solenoid high Voltage of timing solenoid terminal is high 
although TCM is commanding timing solenoid 
to turn OFF. 1 driving cycle
 )  P0961 Pressure control solenoid “A” control 
circuit range / performance Difference between target current of control 
solenoid valve circuit and monitor current of 
control solenoid valve circuit is more than 
specification.
1 driving cycle
 )  P0962 Pressure control solenoid “A” control 
circuit low No electric flow is detected on pressure control 
solenoid circuit.
1 driving cycle
 )  P0963 Pressure control solenoid “A” control 
circuit high Too much electric flow is detected on pressure 
control solenoid circuit.
1 driving cycle
 )  P0973 Shift solenoid “A” control circuit low Voltage of shift solenoid terminal is low 
although TCM is commanding shift solenoid to 
turn ON. 1 driving cycle
 )  P0974 Shift solenoid “A” control circuit high Voltage of shift solenoid terminal is high 
although TCM is commanding shift solenoid to 
turn OFF. 1 driving cycle
 )  P0976 Shift solenoid “B” control circuit low Voltage of shift solenoid terminal is low 
although TCM is commanding shift solenoid to 
turn ON. 1 driving cycle
 )  P0977 Shift solenoid “B” control circuit high Voltage of shift solenoid terminal is high 
although TCM is commanding shift solenoid to 
turn OFF. 1 driving cycle
 )  P1702 Internal control module memory 
check sum error Calculation of current data stored in TCM is not 
correct comparing with pre-stored checking 
data in TCM.
1 driving cycle
 )  P1703 CAN invalid data - TCM TCM receives malfunction signal of throttle 
position
, engine coolan t temperature, engine 
revolution and engine torque from ECM. *1, 1 driving cycle
 )  P1723 Range select switch malfunction “3” position switch ON signal is inputted 
although transmission range switch signal is 
inputted P, R, N or L. range. *1, 1 driving cycle
 )  P1774 Control module communication bus 
off Transmitting and receiving error detected to 
TCM for specified time continuously.
1 driving cycle