Suzuki Swift Sport 2004 User Manual

1A-148 Engine General Information and Diagnosis:
DTC P1676: CAN Communication (Reception Error for TCM)
S7RS0B1104064
Wiring Diagram
Refer to “DTC P1674: CAN Communication (Bus Off Error)”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits”.
• 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 for TCM is
detected for longer than specified time continuously.
(1 driving detection logic)
•ECM
• TCM (for A/T model)
• CAN communication circuit
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed?
Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2 Check CAN communication error for ECM
1) Check ECM for DTC.
Is there DTC P1674?
Go to “DTC P1674:
CAN Communication
(Bus Off Error)”.
Go to Step 3.
3 ECM and TCM connector check
1) Check for proper connection at each ECM and TCM
connector terminals with ignition switch turned OFF.
2) If connections are OK, recheck ECM for DTC with
engine running.
Is there DTC P1676?
Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4 DTC check in TCM
1) Check DTC P1774 in TCM.
Is it indicated?
Go to “DTC P1774:
CAN Communication
Bus Off in Section 5A”.
Go to Step 5.
5 CAN communication circuit check
1) Disconnect connectors of ECM and TCM.
2) Check CAN communication circuit between ECM and
TCM connectors for open, short and high resistance.
Is each CAN communication circuit in good condition?
Go to Step 6. Repair circuit.
6 DTC check of ECM
1) Connect connectors to ECM and TCM with ignition
switch turned.
2) Check ECM for DTC.
Does ECM communicate with control module other than
TCM (i.e. DTC P1678 and/or P1685 are not detected)?
Substitute a known-
good TCM and recheck.
Substitute a known-
good ECM and recheck.

Suzuki Swift Sport 2004 Specifications

General

Brand	Suzuki
Model	Swift Sport 2004
Category	Automobile
Language	English