Dtc B1157 (No. 1157) Air Bag Deployment Signal Input; Dtc B1170 (No. 1170): Eeprom Access Error; Dtc U0073 (No. 0073): Control Module Communication Bus Off; Dtc U0100 (No. 0100): Lost Communication With Ecm - Suzuki 2006 SX4 Service Manual

DTC B1157 (No. 1157) Air Bag Deployment Signal Input

Wiring Diagram
Refer to "DTC B1150 (No. 1150): Air Bag Communication Circuit Malfunction".
DTC Detecting Condition and Possible Cause
DTC detecting condition
Air bag deployment signal is fed from SDM to BCM.
Flow Test Description
Step 1: Check DTC for SDM.
DTC Troubleshooting
Step
1 DTC check of SDM
1) Check DTC stored in SDM referring to "DTC Check in
Section 8B".
Is DTC B1021 detected?

DTC B1170 (No. 1170): EEPROM Access Error

DTC Detecting Condition and Possible Cause
DTC detecting condition
Data write error or check sum error.
DTC Troubleshooting
NOTE
Before performing steps below, be sure to perform "Body Electrical Control System Check".
1) Ignition switch OFF.
2) Replace BCM.
3) Repeat BCM Check Flow Table.

DTC U0073 (No. 0073): Control Module Communication Bus Off

Refer to "Troubleshooting for CAN-DTC in Section 1A".

DTC U0100 (No. 0100): Lost Communication with ECM

Refer to "Troubleshooting for CAN-DTC in Section 1A".

DTC U0101 (No. 0101): Lost Communication with TCM

Refer to "Troubleshooting for CAN-DTC in Section 1A".

DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module

Refer to "Troubleshooting for CAN-DTC in Section 1A".

DTC U1144 (No. 1144): Lost Communication with Keyless Start Control Module

Refer to "Troubleshooting for CAN-DTC in Section 1A".
Action
Body Electrical Control System:
Possible cause
• Air bag component parts
• BCM malfunction
Yes
Go to "DTC B1021:
Front Air Bag
Deployment Record in
Section 8B".
Possible cause
BCM malfunction
10B-20
S6RW0DA204011
No
Substitute a known-
good BCM (included in
junction block) and
recheck.
S6RW0DA204012
S6RW0DA204013
S6RW0DA204014
S6RW0DA204018
S6RW0DA204015
S6RW0DA204016