8B
DTC B1018: Passenger Air Bag Initiator Circuit Short to Ground
Wiring Diagram
Refer to “Wiring Diagram” in DTC B1015: Passenger Air Bag Initiator Circuit Resistance High .
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.
Step 3: Check passenger air bag (inflator) module initiator circuit in air bag harness.
Troubleshooting
Step Action YES NO
1
1) With ignition switch OFF, disconnect passenger air bag (inflator) module connector “G62” behind the glove box.
2) Check proper connection to passenger air bag (inflator) module at terminals in “G62” connector.
3) If OK, then connect special tools (B) and (C) to passenger air bag (inflator) module connector “G62”.
Special Tool
(B) : 09932–75010
(C) : 09932–78340
With ignition switch ON, does DTC B1018 still exist?
Go to Step 2.
Ignition switch OFF.
Replace passenger air bag (inflator) module referring to Passenger Air Bag (Inflator) Module Removal and Installation .
2
1) With ignition switch OFF, disconnect special tools (B) and (C) from “G62” connector and SDM connector “G102” from SDM respectively.
2) Release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
3) Measure resistance between “G102-7” terminals and body ground.
Special Tool
(A) : 09932–75010
(B) : 09932–75010
(C) : 09932–78340
Is resistance 1 MΩ or more?
Go to Step 3.
Repair short from “YEL/RED” wire circuit to ground.
3
1) Measure resistance between “G102-8” terminal and body ground.
Special Tool
(A) : 09932-76010
(B) : 09932-75010
(C) : 09932–78340
Is resistance 1 MΩ or more?
Substitute a known-good SDM and recheck.
Repair short from “YEL” wire circuit to ground.
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 (Refer to DTC Clearance .), if any.
• Repeat Air Bag Diagnostic System Check to confirm that the trouble has been corrected.