DTC B1019
Diagnostic Instructions
DTC Descriptor
DTC B1019 00: System Configuration
Error |
Circuit/System Description
The inflatable restraint sensing and diagnostic module (SDM)
monitors the number of safety components installed on the vehicle.
When the ignition is turned ON, the SDM evaluates the number of
safety components installed and compares it to the number of
components the SDM expects to see on the vehicle with its current
calibration. If there is a mismatch between detected components and
the components programmed with the SDM calibration, DTC B1019 will
set. The components (if equipped) that the SDM will detect include
inflatable restraint deployment loops, impact sensors, passenger
presence system components, seat position sensors, disable
switches, and seat belt switches.
Conditions for Running the DTC
Ignition voltage is between 9-16 V.
Conditions for Setting the DTC
The setup for the SDM has not been completed and the SDM does
not detect the correct number of sensors or deployment loops than
is expected with this calibration.
Action Taken When the DTC Sets
• |
The SDM requests the
instrument cluster to illuminate the AIR BAG warning
indicator. |
• |
The DTC must be cleared before
running the setup SDM. |
• |
Air bag indicator will
continue to flash until SDM setup procedure is complete.
|
Conditions for Clearing the DTC
• |
The condition for setting the
DTC is no longer present. |
• |
A history DTC will clear once
100 malfunction-free ignition cycles have occurred. |
Diagnostic Aids
The SDM scan tool deployment loop and impact sensor data will
match what the SDM has been programmed to expect to see on the
vehicle. B1019 DTC will set if a deployment loop or impact sensor
is added or removed from the system.
DTC B1019 will set when an open/high resistance DTC sets for a
deployment loop or impact sensor. This causes mismatch between the
learned and actual components connected to the SDM.
DTC B1019 can set with no other DTCs if an unused deployment
loop or impact sensor circuit is shorted to ground. This causes a
mismatch between the learned and actual components connected to the
SDM.
Reference Information
Schematic Reference
Connector End View Reference
Component Connector End Views
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Note: DTC B1019 can set
after the SDM has been replaced and/or reprogrammed before the
setup procedure is completed. The setup procedure cannot be
completed if DTC B1019 is set as current or history. If a short or
open is detected in a deployment circuit prior to the setup
procedure being performed, the SDM will set DTC B1019.
2. |
Verify no other SDM DTCs are
set. |
⇒ If other SDM DTCs
are set
Diagnose those DTCs first. Refer to
Diagnostic Trouble Code (DTC) List - Vehicle
⇓ If no other SDM
DTCs are set
3. |
Verify the impact sensors
called out in the scan tool data list match the number of actual
impact sensors installed on the vehicle. |
⇒ If the number of
impact sensors do not match
|
3.1 |
Verify the correct SDM
calibration file is loaded in the SDM. |
⇒ |
If the SDM calibration file is correct and the vehicle contains
an incorrect number of sensors, indentify which sensors are missing
to make the vehicle match the SDM impact sensor calibration scan
tool data list. |
⇓ |
If the calibration file is incorrect |
⇓ If the number of
impact sensors match
4. |
Verify the enabled deployment
loops called out in the scan tool data list match the deployment
loops installed on the vehicle. |
⇒ If the number of
enabled deployment loops do not match
|
4.1 |
Verify the correct SDM
calibration file is loaded in the SDM. |
⇒ |
If the SDM calibration file is correct and the vehicle contains
an incorrect number of loops, indentify which deployment loops are
missing to make the vehicle match the SDM impact sensor calibration
scan tool data list. |
⇓ |
If the calibration file is incorrect |
⇓ If the number of
enabled deployment loops match
5. |
Replace the K36 inflatable
restraint sensing and diagnostic module. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the repair.
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