The inflatable restraint IP module deployment loop consists of the inflatable restraint IP module, the IP module - high control and IP module - low control circuits. A shorting bar is used in the inflatable restraint IP module connector which will short together the IP module - high control and the IP module - low control circuits when the connector is disconnected. This will help prevent unwanted deployment of the IP module during servicing. When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs continuous diagnostic tests on the deployment loop to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, the SDM will store a diagnostic trouble code (DTC).
Ignition 1 voltage is within the normal operating voltage range.
The IP module deployment loop resistance is less than 1.3 ohms for 500 milliseconds.
The SDM commands the AIR BAG indicator ON via Class 2 serial data.
• | The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used. |
• | A history DTC will clear once 255 malfunction free ignition cycles have occurred. |
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
• | A short between the IP module - high control and the IP module - low control circuits |
• | The IP module connector |
• | A malfunctioning IP module |
• | The SDM wiring harness connector |
• | An internal SDM malfunction |
If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
The number(s) below refer to the step number(s) on the diagnostic table.
Tests to see if the malfunction is intermittent.
Tests to see if the malfunction is caused by the IP module.
Tests for a short between the IP module - high control and the IP module - low control circuits.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: SIR Schematics | |||
1 | Did you perform A Diagnostic System Check - SIR? | Go to Step 2 | |
2 |
Does the IP module connector exhibit any signs of damage or corrosion? | Go to Step 3 | Go to Step 4 |
3 |
Did you complete the repair? | Go to Step 10 | -- |
Does the scan tool indicate that DTC B0016 is current? | Go to Step 5 | Go to Diagnostic Aids | |
Does the scan tool indicate that DTC B0016 is current? | Go to Step 7 | Go to Step 6 | |
6 |
Did you complete the replacement? | Go to Step 10 | -- |
7 |
Did you find and correct the problem? | Go to Step 10 | Go to Step 8 |
Test the IP module - high control and the IP module - low control circuits for a short between the two circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 | |
9 |
Did you complete the replacement? | Go to Step 10 | -- |
10 |
Does the DTC reset? | Go to Step 2 | System OK |