B0016

Schematic:

CIRCUIT DESCRIPTION

Diagnostic Chart:

When the ignition switch is turned On and during vehicle operation, the SDM performs tests to detect system faults. One test the SDM performs is to monitor the passenger inflator module high circuit and passenger inflator module low circuit voltage difference. By monitoring voltage difference, the SDM is able to calculate the passenger loop resistance. A low loop resistance indicates the two passenger circuits are shorted together.

DTC PARAMETERS:
DTC B0016 can be set when the passenger loop resistance is low. The following conditions must be met to set this DTC.
- Ignition voltage is present at the SDM and continuous.
- The passenger deployment loop resistance is under 1.3 Ohms.
- Fault is present for half a second.

ACTION TAKEN:
- DTC B0016 will set.
- The air bag telltale will be On.

DIAGNOSTIC AIDS:
- When attempting to diagnose an intermittent passenger loop fault, use the Scan tool to monitor current DTCs. Wiggle wires and check connections while watching for a current DTC to appear and/or disappear on Scan tool.
- Always start diagnosis of SIR DTCs with an inspection of wiring and components for visible damage.
- A malfunctioning shorting bar at the passenger inflator module harness could cause this DTC.
- Always perform the "SIR Diagnostic System Check" before using this chart.