The supplemental deployment loop #2 (RR/passenger rear side inflatable module) is a 2 wire circuit. When you first turn ON the ignition, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. Then the SDM performs the following continuous diagnostic tests on the deployment loops:
• | Deployment loop voltage out of range test |
• | Deployment loop resistance measurement test |
If the voltage out of range test detects a short to voltage condition, the resistance measurement test for that deployment loop will not be performed.
• | The ignition 1 voltage is within the normal operating voltage range. |
• | The RR side deployment loop is not open. |
• | The RR side deployment loop is not shorted to voltage. |
• | The RR side deployment loop is not shorted to ground. |
The RR side deployment loop resistance is less than 1.3 ohms for 500 milliseconds.
The SDM commands ON the AIR BAG warning lamp via Class 2 serial data.
• | The resistance of the RR side deployment loop is at least 1.3 ohms or more for 500 milliseconds. |
• | You can issue a CLEAR CODES command. |
• | A history DTC will clear once 255 malfunction free ignition cycles have occurred. |
The following can cause an intermittent condition:
• | A short between the RR side high and the RR side low circuits |
• | A malfunctioning shorting bar on the RR side 2-way connector |
If any of the above conditions are found 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.
This step checks the RR/passenger rear side inflatable module in-line connector for physical damage.
This step checks to see if there is a malfunctioning RR side inflatable module.
This step determines if there is a short between RR side high and low deployment circuits or if there is a malfunctioning SDM.
Step | Action | Value(s) | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check? | -- | Go to Step 2 | |||||||
Do the connectors exhibit any signs of corrosion, terminal damaged, or poor connections? | -- | Go to Step 3 | Go to Step 4 | |||||||
3 | Replace the vehicle wiring harness side of the in-line connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement? | -- | Go to Step 10 | -- | ||||||
4 |
Does the scan tool indicate that this DTC is current? | -- | Go to Step 5 | Go to Diagnostic Aids | ||||||
Does the scan tool indicate that this DTC is current? | -- | Go to Step 7 | Go to Step 6 | |||||||
6 |
Did you complete the replacement? | -- | Go to Step 10 | -- | ||||||
Does the resistance measure less than the specified value? | OL | Go to Step 8 | Go to Step 9 | |||||||
8 | Locate and repair the short between the high and the low deployment circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 10 | -- | ||||||
9 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? | -- | Go to Step 10 | -- | ||||||
10 |
Did you complete the action? | -- | -- |