Suzuki 2006 SX4, Service Manual

Page: 1032 / 1478

8B-67 Air Bag System:
DTC B1073: Driver Forward Impact-Sensor Circuit Shorted to Ground
S6RW0C8204036
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
10
“L04”
“L372” “E388”
“E40”
ORN
PNK/BLK
ORN
PNK/BLK
L04-50
L04-51
11
30V
“L04”
BLK
L04-28
6
8
7
RED
GRN
“L313”
L04-27
9
1
2
BLK
WHT
3
4 5
12
12V
5V
30V
13
I6RW0C820012-01
1. Battery 5. Individual circuit fuse box No.1 9. Ground for air bag system 13. Back up capacitor
2. Fuse 6. Ignition switch 10. SDM
3. Main fuse box 7. “A/B” fuse 11. Driver forward impact-sensor
4. “IGN” fuse 8. Junction block assembly 12. DC / DC converter
DTC detecting condition Trouble area
Forward impact-sensor circuit has been shorted to ground
for more than 4 sec.
• Forward impact-sensor
• Forward impact-sensor circuit
• SDM
Step Action Yes No
1 Was “Air Bag Diagnostic System Check Flow” performed? Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2 Forward impact-sensor circuit check
1) Disconnect forward impact-sensor connector “E40”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminals “L04-50” and “L04-51”.
4) Measure resistance between “L04-50” terminal and body
ground.
Special tool
(A): 09932–76010
Is each measured resistance infinity?
Go to Step 3. Repair short to ground
in defective circuit.
“L04-50” “L04-51”
(A)
I7RW01821027-01