The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system (PPS) has enabled or disabled the I/P inflator module. When the ignition is turned ON, the ignition voltage is supplied to the passenger air bag ON/OFF indicators and to the PPS module. The instrument panel cluster (IPC) grounds all indicator control circuits to the passenger air bag ON/OFF indicators for illumination.

The serial data messages sent from the supplemental inflatable restraints system to the radio, serving as a gateway, transmitting the information to the IPC to control the indicators as necessary.

After the SDM is programmed, the SDM setup procedure is required. During this set up procedure, the SDM will compare the content that was just programmed to the actual components that are installed on the vehicle. If the SDM detects that there are too few or too many components on the system, DTC B1019 00 will set and not allow the setup procedure to complete.

Ignition voltage is between 9-16 volts.

B1019 00

B1019 3A

If the SDM has been replaced, make sure that the correct part number was installed for this vehicle. If after programming the SDM DTC B1019 00 sets as current, check for bent pins or shorting bars at the SDM connector.

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

B1019 3A

1. With a scan tool, verify DTC B1370 is not set as current in the SDM.

⇒	If DTC is current refer to DTC B1370 .

2. If equipped with PPS, verify the appropriate PPS indicator segments illuminate by occupying and un-occupying the passenger seat.

⇒	If the PPS indicator segments do not illuminate properly, replace the PPS indicator.

Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected.

B1019 00

1. Ignition ON, verify the scan tool End Model Part Number is correct for the vehicle.

⇒	If the part number is incorrect, reprogram the SDM.

Important: 

•	If not equipped with PPS, the scan tool parameter should display Not Present and the PPS indicator should not be present on the vehicle

•	If equipped with PPS, the scan tool parameter should display Auto, Manual, or Auto + Man and the PPS indicator should be present on the vehicle

2. Observe the scan tool PPS Options parameter to determine how the vehicle PPS is currently configured in the SDM. Verify the actual vehicle equipment and the current configuration indicated by the scan tool parameter are the same.

⇒	If the original configuration does not match the actual vehicle equipment, reprogram the SDM with the correct configuration.

3. Ignition OFF, disconnect the harness connectors at the SDM and verify the connector is in good condition and has no bent pins, terminals or shorting bars

⇒	If damage is found, repair the bent pins, terminals or shorting bars as needed and perform the Setup New SDM procedure.

4. Connect the harness connector at the SDM.
5. Ignition ON, verify the scan tool System Configuration matches the actual components installed on the vehicle.

⇒	If the System Configuration does not match the actual components installed, reprogram the SDM with the correct components.

6. Ignition ON, clear all PPS and SDM DTCs.
7. Verify DTC B1019 does not set.

⇒	If DTC sets, replace the SDM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.