2006 SUZUKI SX4 check engine

Downloaded from www.Manualslib.com manuals search engine 8B-65 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

3Floor harness circuit check
1) Disconnect applicable “L384” or “L385” connector under
front cushion.
2) Check for proper connection to applicable floor harness
connector at terminal in connector “L384” or “L385”.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) With ignition switch turned ON, measure voltage
between “L04-11” terminal and body ground, and
between “L04-12” terminal and body ground (for DTC
B1064).
5) Measure voltage between “L04-13” terminal and body
ground, and between “L04-14” terminal and body ground
(for DTC B1068).
Is each measured voltage 0 V?DTC B1064: Repair
“BLU” circuit or “BLK”
circuit for short to power
supply circuit at driver
side-air bag harness.
DTC B1068: Repair
“BLU” circuit or “BLK”
circuit for short to power
supply circuit at
passenger side-air bag
harness.DTC B1064: Repair
“GRY/RED” circuit or
“GRY” circuit for short to
power supply circuit at
floor harness.
DTC B1068: Repair
“BRN/WHT” circuit or
“BRN” circuit for short to
power supply circuit at
floor harness. Step Action Yes No
“L384”, “L385”
“L04-12” “L04-13” “L04-14” “L04-11”
1,(A)
(A)
I7RW01822085-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-66
DTC B1071: Driver Forward Impact-Sensor Communication Data InconsistentS6RW0D8204034
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1072: Driver Forward Impact-Sensor Communication Data InvalidS6RW0D8204035
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC detecting condition Trouble area
Forward impact-sensor has been communicated with no
response or inconsistent ID code for more than 4 sec.• Forward impact-sensor
• Forward impact-sensor circuit
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTC(s) B1073, B1074?Go to applicable DTC
diag. flow.Replace defective
forward impact-sensor
and recheck.
If this DTC still detected,
replace SDM.
DTC detecting condition Trouble area
Forward impact-sensor has been communicated with
invalid data for more than 4 sec.• Forward impact-sensor
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTC(s) B1071, B1073, B1074?Go to applicable DTC
diag. flow.Replace defective
forward impact-sensor
and recheck.
If this DTC still detected,
replace SDM.

Downloaded from www.Manualslib.com manuals search engine 8B-67 Air Bag System:
DTC B1073: Driver Forward Impact-Sensor Circuit Shorted to GroundS6RW0D8204036
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
10
“L04”
“L372” “E388”
“E40”
ORN
PNK/BLKORN
PNK/BLKL04-50
L04-5111
30V
“L04”
BLK
L04-28
6 8
7
RED
GRN“L313”L04-27
9
1
2 BLKWHT3
4
5
12
12V5V30V
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
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Forward 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

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-68
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1074: Driver Forward Impact-Sensor Circuit OpenS6RW0D8204037
Wiring Diagram
Refer to “DTC B1073: Driver Forward Impact-Sensor Circuit Shorted to Ground”.
DTC Detecting Condition and Trouble Area3Forward impact-sensor circuit check
1) Measure resistance between “L04-50” and “L04-51”
terminals.
Special tool
(A): 09932–76010
Is each measured resistance infinity?Replace defective
forward impact-sensor,
and recheck.
If this DTC is still
detected, replace SDM.Repair short to ground
in defective circuit. Step Action Yes No
“L04-50”“L04-51”
(A)
I7RW01821028-01
DTC detecting condition Trouble area
Forward impact-sensor circuit has been shorted to power
circuit or opened for more than 4 sec.• Forward impact-sensor
• Forward impact-sensor circuit
•SDM

Downloaded from www.Manualslib.com manuals search engine 8B-69 Air Bag System:
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Forward 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) Check for proper connection to forward impact-sensor
connector at terminals “E40-1” and “E40-2”.
5) Measure resistance between “L04-50” and “E40-2”
terminals, between “L04-51” and “E40-1” terminals.
Special tool
(A): 09932–76010
Is each measured resistance 1
Ω or less?Go to Step 3. Repair high resistance
or open in defective
circuit.
3Forward impact-sensor circuit check
1) With ignition turned ON, measure voltage between “L04-
50” terminal and body ground, between “L04-51”
terminal and body ground.
Special tool
(A): 09932–76010
Is each measured voltage 0 V?Replace forward
impact-sensor, and
recheck.
If DTC still detected,
replace SDM.Repair short to power
supply circuit or other
circuit in defective
circuit.
“L04-50”“L04-51”
“E40-1”
“E40-2”
(A)
I7RW01822067-02
“L04-50”“L04-51”
(A)
I7RW01821029-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-70
DTC B1081 / B1091: Side Impact-Sensor No ResponseS6RW0D8204066
DTC B1081: Driver Side Impact-Sensor No Response
DTC B1091: Passenger Side Impact-Sensor No Response
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1082 / B1092: Side Impact-Sensor Communication DATA InvalidS6RW0D8204058
DTC B1082: Driver Side Impact-Sensor Communication DATA Invalid
DTC B1092: Passenger Side Impact-Sensor Communication DATA Invalid
DTC Detecting Condition and Trouble AreaDTC detecting condition Trouble area
DTC B1081:
Driver side impact-sensor has been communicated with
no response for more than 4 sec.
DTC B1091:
Passenger side impact-sensor has been communicated
with no response for more than 4 sec.• Driver / passenger side impact-sensor circuit
• Driver / passenger side impact-sensor
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTCs B1083, B1084 (for DTC B1081) or
B1093, B1094 (for DTC B1091)?Go to applicable DTC
diag. flow.Replace defective side
impact-sensor and
recheck.
If this DTC still detected,
replace SDM.
DTC detecting condition Trouble area
DTC B1082:
Driver side impact-sensor has been communicated with
invalid data for more than 4 sec.
DTC B1092:
Passenger side impact-sensor has been communicated
with invalid data for more than 4 sec.• Driver / passenger side impact-sensor
•SDM

Downloaded from www.Manualslib.com manuals search engine 8B-71 Air Bag System:
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1083 / B1093: Side Impact-Sensor Circuit Shorted to GroundS6RW0D8204059
DTC B1083: Driver Side Impact-Sensor Circuit Shorted to Ground
DTC B1093: Passenger Side Impact-Sensor Circuit Shorted to Ground
Wiring Diagram
DTC Detecting Condition and Trouble AreaStep Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTC(s) B1083, B1084, B1085 (for DTC
B1082) or B1093, B1094, B1095 (for DTC B1092)?Go to applicable DTC
diag. flow.Replace defective side
impact-sensor and
recheck.
If this DTC still detected,
replace SDM.
10
“L04”30V
30VL04-47 L04-46WHT/RED
LT GRN/BLK“L36”
11
L04-44 L04-45WHT/GRN
LT GRN
“L35”12
“L04”
BLK
L04-28
6 8
7
RED
GRN“L313”L04-27
9
1
2 BLKWHT3
4
5
13
12V5V30V
14
I6RW0C820013-01
1. Battery 5. Individual circuit fuse box No.1 9. Ground for air bag system 13. DC / DC converter
2. Fuse 6. Ignition switch 10. SDM 14. Back up capacitor
3. Main fuse box 7. “A/B” fuse 11. Driver side impact-sensor
4. “IGN” fuse 8. Junction block assembly 12. Passenger side impact-sensor
DTC detecting condition Trouble area
DTC B1083:
Driver side impact-sensor circuit has been shorted to
ground for more than 4 sec.
DTC B1093:
Passenger side impact-sensor circuit has been shorted to
ground for more than 4 sec.• Driver / passenger side impact-sensor circuit
• Driver / passenger side impact-sensor
•SDM

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-72
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Side impact-sensor circuit check
1) Disconnect applicable side impact-sensor connector
“L35” or “L36”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminals “L04-46” and “L04-47” (for DTC B1083) or
terminals “L04-44” and “L04-45” (for DTC B1093).
4) Check for proper connection to applicable side impact-
sensor connector at terminals in connector “L35” or
“L36”.
5) Measure resistance between “L04-46” terminal and body
ground (for DTC B1083) or between “L04-45” terminal
and body ground (for DTC B1093).
Special tool
(A): 09932–76010
Is each measured resistance infinity?Go to Step 3. Repair short to ground
in defective circuit.
3Side impact-sensor circuit check
1) Measure resistance between “L04-46” and “L04-47”
terminals, between “L04-46” and “L04-44” terminals (for
DTC B1083).
2) Measure resistance between “L04-45” and “L04-44”
terminals, between “L04-45” and “L04-47” terminals (for
DTC B1093).
Special tool
(A): 09932–76010
Is each measured resistance infinity?Replace defective side
impact-sensor, and
recheck.
If this DTC is still
detected, replace SDM.Repair short to ground
in defective circuit.
(A)
“L04-44”“L04-45” “L04-46” “L04-47”
I7RW01822069-01
“L04-44”“L04-45” “L04-46” “L04-47”
(A)
I7RW01822070-01