2008 SUZUKI SWIFT engine diagnosis

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-59
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 of driver or passenger seat belt pretensioner initiator circuit is below a specified value for specified
time.
Flow Test Description
Step 1: Check if malfunction is in seat belt pretensioner.
Step 2: Check seat belt pretensioner initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, re move center pillar lower trim
of driver or passenger side and disconnect seat belt
pretensioner connector “L10” or “L36” (1).
2) Check proper connection to seat belt pretensioner at terminals in “L10” or “L36” connector.
3) If OK, then connect special tools (A), (B) and (C) to “L10” or “L36” connector disconnected in Step 1).
Special tool
(A): 09932-76010
(B): 09932-75010
(C): 09932-78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1052 or B1056 still
indicated? Go to Step 2.
Turn ignition switch
OFF. Replace seat belt
pretensioner referring to
“Front Seat Belt
Removal and
Installation in Section
8A”.
STEERING WHEEL(B)
(C)
(A)
"L10", "L36"
I4RS0A820027-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-61
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 driver or passenger seat belt pr etensioner initiator circuit is below a specified value for
specified time.
Flow Test Description
Step 1: Check if malfunction is in seat belt pretensioner.
Step 2: Check seat belt pretensioner initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, re move center pillar lower trim
of driver or passenger side and disconnect seat belt
pretensioner connector “L10” or “L36” (1).
2) Check proper connection to seat belt pretensioner at terminals in “L10” or “L36” connector.
3) If OK, then connect special tools (A), (B) and (C) to “L10” or “L36” connector disconnected in Step 1).
Special tool
(A): 09932-76010
(B): 09932-75010
(C): 09932-78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1053 or B1057 still
indicated? Go to Step 2.
Ignition switch OFF.
Replace seat belt
pretensioner referring to
“Front Seat Belt
Removal and
Installation in Section
8A”.
STEERING WHEEL(B)
(C)
(A)
"L10", "L36"
I4RS0A820027-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-63
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 driver or passenger seat belt pr etensioner initiator circuit is above a specified value for
specified time.
Flow Test Description
Step 1: Check if malfunction is in seat belt pretensioner.
Step 2: Check seat belt pretensioner initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, re move center pillar lower trim
of driver or passenger side and disconnect seat belt
pretensioner connector “L10” and “L36” (1).
2) Check proper connection to seat belt pretensioner at terminals in “L10” or “L36” connector.
3) If OK, then connect special tools (A), (B) and (C) to “L10” or “L36” connector disconnected in Step 1).
Special tool
(A): 09932-76010
(B): 09932-75010
(C): 09932-78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1054 or B1058 still
indicated? Go to Step 2.
Turn ignition switch
OFF. Replace seat belt
pretensioner referring to
“Front Seat Belt
Removal and
Installation in Section
8A”.
STEERING WHEEL(B)
(C)
(A)
"L10", "L36"
I4RS0A820027-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-65
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 above 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 B1061 or B1065 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 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