Restraints - Except Advanced Air Bag Diagnostics

DTC B1018: Passenger Air Bag Initiator Circuit Short to Ground

Wiring Diagram

Wiring Diagram:

CAUTION:
- Be sure to perform Air Bag Diagnostic System Check:Except Advanced Air Bag before starting diagnosis according to flow table. Air Bag Diagnostic System Check
- When measurement of resistance or voltage is required in this table, use a specified digital multimeter (Refer to Special Tool:Except Advanced Air Bag.) 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:Except Advanced Air Bag. Inspection of Intermittent 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:Except Advanced Air Bag 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. Air Bag Diagnostic System Check

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 1:

Step 2:

DTC Troubleshooting