Suzuki SX4 Service Manual page 218

1A-168 Engine General Information and Diagnosis:
Troubleshooting
Step
1 DTC Check
1) Turn ignition switch to OFF position.
2) Connect scan tool to DLC.
3) Check DTC in the following control modules.
• ECM
• TCM
• BCM
• Keyless start control module
• ESP® control module
• 4WD control module
Is there any DTC other than CAN-DTC?
2 Control module connector check
1) Turn ignition switch to OFF position.
2) Be sure to disconnect scan tool from DLC.
3) Disconnect all the following control module / sensor
connectors.
• Control modules communicated by CAN
– ECM
– TCM
– ABS / ESP® control module
– BCM
– Combination meter
– Keyless start control module
– 4WD control module
• Sensor communicated by CAN
– Steering angle sensor (ESP® model)
– Yaw rate / G sensor (ESP® model)
4) Check for proper connection to terminal of each CAN
line of all control module / sensor (communicated by
CAN) connectors.
5) If OK, connect all connectors of control module / sensor
communicated by CAN securely.
6) Recheck DTC for all control modules communicated by
CAN.
Is there any CAN-DTC?
Action Yes
Go to applicable
troubleshooting of DTC
other than CAN-DTC.
Go to Step 3.
No
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".