intermittent and poor connection SUZUKI SWIFT 2008 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 8B-68 Air Bag System:
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The combined resistance of the side-air bag (inflator) module (driver or passenger), harness wiring and connector
terminal contact is below a spec ified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side-air bag (inflator) module.
Step 2: Check side-air bag initiator circuit in floor harness.
Step 3: Check side-air bag init iator circuit in seat harness.
DTC Troubleshooting Step Action YesNo
1 1) With ignition switch OFF, disconnect side-air bag (inflator) module connector under front seat cushion.
2) Check proper connection to driver or passenger side-air bag (inflator) module at terminals in “L25” or “L30”
connector.
3) If OK, then connect special tools (B) and (C) to side-air bag (inflator) module connector disconnected at the Step
1.
Special tool
(B): 09932–75010
(C): 09932–78340
4) Check SDM DTC.
With ignition switch ON, is DTC B1062 or B1066 still
indicated? Go to Step 2.
Go to Step 3.
“L25”, “L30”
(C)
(B)
STEERING WHEEL
I4RS0A820032-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-71
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The voltage measured at side-air bag (driver or passenger) init iator circuit is below a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side-air bag (inflator) module.
Step 2: Check side-air bag initiator circuit in floor harness.
Step 3: Check side-air bag init iator circuit in seat harness.
DTC Troubleshooting Step Action YesNo
1 1) With ignition switch OFF, disconnect side-air bag (inflator) module connector under front seat cushion.
2) Check proper connection to driver or passenger side-air bag (inflator) module at terminals in “L25” or “L30”
connector.
3) If OK, then connect special tools (B) and (C) to side-air bag (inflator) module connector disconnected at the Step
1.
Special tool
(B): 09932–75010
(C): 09932–78340
4) Check SDM DTC.
With ignition switch ON, is DTC B1063 or B1067 still
indicated? Go to Step 2.
Go to Step 3.
“L25”, “L30”
(C)
(B)
STEERING WHEEL
I4RS0A820032-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-73
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.

DTC B1064 / B1068: Driver / Passenger Side-Air Bag Initiator Circuit Short to Power CircuitS7RS0B8204033
Wiring Diagram
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The voltage measured at side-air bag (driver or passenger) init iator circuit is above a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side-air bag (inflator) module.
Step 2: Check side-air bag initiator circuit in floor harness.
Step 3: Check side-air bag init iator circuit in seat harness.
1
2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-12
DS+
L29-11
DS-GRY
GRY/RED
56
“L25”
L29-13
PS+
L29-14
PS-BRN
BRN/WHT7
“L30”[A]
I7RS0A820020-04
[A]: Shorting bar 3. “A/BAG” fuse 6. Driver side-air bag (inflator) module
1. From main fuse 4. Junction block assembly 7. Passenger side-air bag (inflator) module
2. Ignition switch 5. SDM 8. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-77
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
Forward-sensor abnormal signal is detected by SDM.
Flow Test Description
Step 1: Check for short circuit between forward-sensor circuit and ground.
Step 2: Check if malfuncti on is in forward-sensor.
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 YesNo
1 1) Disconnect forward-sensor connector “E13”.
2) Disconnect SDM connector “L29”.
3) Check proper connection to SDM connector at terminals “L29-50” and “L29-51” or terminals.
4) Measure resistance between “L29-50” terminal and body ground, “L29-51” terminal and body ground.
Special tool
(A): 09932–76010
Is each measured resistance infinity? Go to Step 3.
“ORN” circuit or “PNK/
BLK” circuit shorted to
ground.
2 1) Check forward-sensor referring to “Forward-Sensor Inspection”.
Is it in good condition? Substitute a known-
good SDM and recheck.
Replace forward-sensor
referring to “Forward-
Sensor Removal and
Installation”. If DTC still
exists, substitute a
known-good SDM and
recheck.
"L29-50" "L29-51"
(A)
I7RS0A820025-01

Downloaded from www.Manualslib.com manuals search engine 8B-78 Air Bag System:
DTC B1074: Forward-Sensor Circuit Short to Power Circuit or OpenS7RS0B8204037
Wiring Diagram
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
Forward-sensor abnormal signal is detected by SDM.
Flow Test Description
Step 1: Check for open circuit in forward-sensor circuit.
Step 2: Check for short circuit between forward-sensor circuit and ground.
Step 3: Check for short circuit between forw ard-sensor circuit and power supply circuit.
Step 4: Check if malfuncti on is in forward-sensor.
1
2
3
GRN
RED
7
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”5
ORN
PNK/BLK
ORN
PNK/BLKL29-50
FD+
L29-51
FD-6
“E13”
“L03”“E44”
I7RS0A820024-01
1. From main fuse 4. Junction block assembly 7. Ground for air bag system
2. Ignition switch 5. SDM
3. “A/BAG” fuse 6. Forward-sensor

Downloaded from www.Manualslib.com manuals search engine 8B-80 Air Bag System:
DTC B1081 / B1091: Driver / Passenger Side-Sensor Performance ProblemS7RS0B8204038
DTC Will Set when
SDM receives internal fault signal from side-sensor.
DTC Troubleshooting1) Turn ignition switch OFF.
2) Replace driver or passenger side-sensor referr ing to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1082 / B1092: Driver / Passenger Side-Sensor Communication ErrorS7RS0B8204039
DTC Will Set when
Side-sensor abnormal signal is detected by SDM.
DTC Troubleshooting
1) Turn ignition switch OFF.
2) Replace driver or passenger side-sensor referr ing to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1083 / B1093: Driver / Passenger Side-Sensor Circuit Short to GroundS7RS0B8204040
Wiring Diagram
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The resistance measured between side-sen sor circuit and ground circuit is below a specified value for specified time.
Flow Test Description
Step 1: Check for short circuit between side-sensor circuit and ground.
Step 2: Check if malfunction is in side-sensor.
1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”5
WHT/RED
LT GRN/BLKL29-46
SD+
L29-47
SD-6
“L11”
WHT/GRN
LT GRNL29-45
SP+
L29-44
SP-7
“L35”
I7RS0A820028-02
1. From main fuse 4. Junction blo ck assembly 7. Passenger side-sensor
2. Ignition switch 5. SDM 8. Ground for air bag system
3. “A/BAG” fuse 6. Driver side-sensor

Downloaded from www.Manualslib.com manuals search engine 8B-82 Air Bag System:
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The resistance measured between side-sensor circuit and power source circuit is below a specified value for specified
time.
Flow Test Description
Step 1: Check for open circuit in side-sensor circuit.
Step 2: Check for short circuit between side-sensor circuit and power supply circuit.
Step 3: Check if malfunction is in side-sensor.
DTC Troubleshooting
Step Action YesNo
1 1) Disconnect side-sensor connector “L11” or “L35”.
2) Disconnect SDM connector “L29”.
3) Check proper connection to SDM connector at terminals “L29-46” and “L29-47” or terminals “L29-44” and “L29-
45”.
4) Check proper connection to side-sensor connector at terminals “L11-1” and “L11-2” or terminals “L35-1” and
“35-2”.
5) Using service wire (1), connect “L11-1” terminal and “L11-2” terminal of driver side-sensor connector or “L35-
1” terminal and “L35-2” terminal of passenger side-
sensor connector.
6) Measure resistance between terminals “L29-46” and “L29-47” or between “L29-44” and “L29-45” of SDM
connector.
Special tool
(A): 09932–76010
Is each measured resistance 1
Ω or less? Go to Step 2. DTC B1084: High
resistance or open wire
in “WHT/RED” circuit or
“LT GRN/BLK” circuit.
DTC B1094: High
resistance or open wire
in “WHT/GRN” circuit or
“LT GRN” circuit.
(A)
"L11-1, L35-1" "L11-2, L35-2"1
"L29-45" "L29-46" "L29-47"
"L29-44"
I7RS0A820029-01

Downloaded from www.Manualslib.com manuals search engine 8B-84 Air Bag System:
DTC B1361 / B1365: Driver / Passenger Side Curtain-Air Bag Initiator Circuit Resistance HighS7RS0B8204043
Wiring Diagram
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The combined resistance of the side curtain-air bag (inflator) module (driver or passenger), harness wiring and
connector terminal contact is above a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side curtain-air bag (inflator) module.
Step 2: Check side curtain-air bag initiator circuit.
1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-20
DC+
L29-19
DC-YEL/BLU
YEL/GRN
56
“L18”
L29-21
PC+
L29-22
PC-BRN/YEL BLK/YEL7
“L41”[A]
I7RS0A820031-04
[A]: Shorting bar 3. “A/BAG” fuse 6. Driver side curtain-air bag (inflator) module
1. From main fuse 4. Junction block assembly 7. Passenger side curtain-air bag (inflator) module
2. Ignition switch 5. SDM 8. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-87
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The combined resistance of the side curtain-air bag (inflator) module (driver or passenger), harness wiring and
connector terminal contact is below a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side curtain-air bag (inflator) module.
Step 2: Check side curtain-air bag initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, remove rear side upper trim of driver or passenger side and disconnect side curtain-air
bag (inflator) module connector.
2) Check proper connection to side curtain-air bag (inflator) module at terminals in “L18” or “L41” connector.
3) If OK, then connect special tools (A), (B) and (C) to side curtain-air bag (inflator) module connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1362 or B1366 still
indicated? Go to Step 2.
Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)
(C)
(A)
"L18", "L41"
I7RS0A820032-04

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-89
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The voltage measured at side curtain-air bag (driver or passenger) initiator circuit is below a specified value for
specified time.
Flow Test Description
Step 1: Check whether malfunction is in side curtain-air bag (inflator) module.
Step 2: Check side curtain-air bag initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, remove rear side upper trim of driver or passenger side and disconnect side curtain-air
bag (inflator) module connector.
2) Check proper connection to side-air bag (inflator) module at terminals in “L18” or “L41” connector.
3) If OK, then connect special tools (A), (B) and (C) to side curtain-air bag (inflator) module connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1363 or B1367 still
indicated? Go to Step 2.
Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)
(C)
(A)
"L18", "L41"
I7RS0A820032-04