B0016
DTC B0016
DTC Descriptors
DTC B0016 01
- Left Roof Rail Deployment Loop Short to Battery
DTC B0016 02
- Left Roof Rail Deployment Loop Short to Ground
DTC B0016 04
- Left Roof Rail Deployment Loop Open Circuit
DTC B0016 0D
- Left Roof Rail Deployment Loop Resistance Above Threshold
DTC B0016 0E
- Left Roof Rail Deployment Loop Resistance Below Threshold
Diagnostic Fault Information
Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
Circuit/System Description
During a side or frontal crash of sufficient force the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the roof side rail module. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.
A shorting bar used within the roof rail module connector which will short together both roof rail module - left high and low circuits when the connector is disconnected, this will help to prevent unwanted deployment of the inflator module during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0016 01
The roof rail module - left high and/or low circuit is short to voltage for 120 milliseconds.
B0016 02
The roof rail module - left high and/or low circuit is short to ground for 120 milliseconds.
B0016 04
The roof rail module - left high and/or low circuit is open for 120 milliseconds.
B0016 0D
The roof rail module - left deployment loop resistance is more than 3.9 ohms for 120 milliseconds.
B0016 0E
The roof rail module - left deployment loop resistance is less than 1.1 ohms for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM commands the AIR BAG indicator ON via serial data communications.
* The SIR system is disabled and no deployments are allowed.
Conditions for Clearing the DTC
* 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.
Circuit/System Testing
1. Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
* The roof rail module- left
* The SDM module
* The roof rail module- left wiring harness connector
* The SDM wiring harness connector
Ignition OFF, remove the left garnish molding - lock pillar upper and disconnect the roof rail module - left in-line connector. Refer to Garnish Molding Replacement - Lock Pillar Upper (Coupe).
2. Use the J38715-5 adapter to connect the J38715-A to the harness side of the roof rail module - left in-line connector. Use the PASSENGER INFLATOR connector located on the load tool.
3. Ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0016 is set in history.
• If DTC B0016 is history replace the roof rail module - left.
4. Ignition OFF, disconnect and remove both the J38715-A and adapter. Then remove the SDM connector, refer to SDM replacement in Repair Instructions for connector location.
5. Test the high and low circuits between the SDM and roof rail module - left for a short to voltage, short to ground, or open/low resistance.
• If any of the above conditions are found make the appropriate repair.
6. If all circuits test normal then replace the SDM.
Repair Instructions
Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests
* Inflatable Restraint Roof Rail Module Replacement - Front
* Control Module References for SDM replacement, setup, and programming