Dtc B1018: Passenger Air Bag Initiator Circuit Short To Ground - Suzuki Liana RH413 Service Manual

8B-35 Air Bag System:

DTC B1018: Passenger Air Bag Initiator Circuit Short to Ground

Wiring Diagram
GRN
1
2
[A]
[A]: Shorting bar
1. From main fuse
CAUTION
!
• Be sure to perform "Air Bag Diagnostic System Check" before starting diagnosis according to flow
table.
• When measurement of resistance or voltage is required in this table, use a specified digital
multimeter (Refer to "Special Tool".) along with a correct terminal adaptor from special tool
(Connector test adapter kit).
• When a check for proper connection is required, refer to "Inspection of Intermittents and Poor
Connections".
• If there is open circuit in the air bag wire harness, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
NOTE
If vehicle is equipped with driver or passenger side air bag ON-OFF switch, perform "Air Bag
Diagnostic System Check Flow" with disconnecting air bag ON-OFF switch from air bag circuit. And if
this DTC is not detected under the condition, replace air bag ON-OFF switch and recheck.
DTC Will Set when
The voltage measured at passenger air bag initiator circuit is below a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in passenger air bag (inflator) module.
Step 2: Check passenger air bag (inflator) module initiator circuit in air bag harness.
"L70"
"G14"
"L80"
3
RED
RED
L70-32
BLK
L70-31
6
2. Ignition switch 4. SDM
3. "AIR BAG" fuse 5. Passenger air bag (inflator) module
"L70"
4
+12V
YEL/GRN
L70-24
YEL
L70-23
6. Ground for air bag system
S3RH0A8204016
"L72" "L38" "L35"
I3RH0A820021-02
5