Dtc B1157 (No. 1157) Air Bag Deployment Signal Input; Dtc B1170 (No. 1170): Eeprom Access Error - Suzuki GRAND VITARA Owner's Manual

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

Wiring Diagram
2
5V
G30-19
G30
12 11 10 9 8 7 6
24 23 22 21 20 19 18
G32
6 5 4 3 2
15 14 13 12 11 10 9
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 Check DTC for 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.
[A]: G47-22
YEL
[B]: G46-15
5 4 3 2 1
17 16 15 14 13
1
8 7
[A]: Vehicle not equipped with side-air bag
[B]: Vehicle equipped with side-air bag
Action
Body Electrical Control System:
[A]
1
[B]
20 19 18 17 16
40 39 38 37 36
1. SDM
2. BCM
• Air bag component parts
• BCM malfunction
Go to "DTC B1021: Air
Bag Module Deployed:
in Section 8B".
Possible cause
BCM malfunction
G47
G46
G31
15 14 13 12 11 10 9 8 7 6 5 4
35 34 33 32 31 30 29 28 27 26 25 24 23
Possible cause
Yes
Substitute a known-
good BCM and recheck.
10B-19
S5JB0AA204011
3 2 1
22 21
I5JB0AA20009-02
No
S5JB0AA204012