DTC Lookup

B1500 DTC

Short to driver-side far side air bag module circuit and other air bag module circuits

Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector

Possible Causes

  • injury or damage the system due to a mis-operation. When performing an

SAS

B1500:1A [SAS]

SM3342204

id9902k0819100

Details On DTCs

System malfunction location

Driver-side far side air bag module circuit resistance low
Detection condition
Determination conditions
Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection only under the detection conditions may cause injury or damage the system due to a mis-operation. When performing an inspection, always follow the diagnostic procedure.
• Driver-side far side air bag module circuit resistance is other than 0.80–10.00 ohms.
• Malfunction in wiring harness between driver-side far side air bag module and SAS control module.
Preconditions
• Not applicable
Determination period
• Not applicable
Fail-safe
• Not applicable
Vehicle status when DTCs are output
• Not applicable
Possible cause
• Driver-side far side air bag module connector malfunction
• Malfunction in wiring harness (including connector/terminal) between driver-side far side air bag module and SAS control module
• Driver-side far side air bag module malfunction
• SAS control module malfunction

System Wiring Diagram

image
bda2zd00000683
1
SAS control module
2
Driver-side far side air bag module

Function Explanation (DTC Detection Outline)

• Not applicable

Repeatability Verification Procedure

• Not applicable

Function Inspection Using M-MDS

• Not applicable

Troubleshooting Diagnostic Procedure

Step

Inspection

Results

Action
1
PURPOSE: INSPECT DRIVER-SIDE FAR SIDE AIR BAG MODULE CONNECTOR
Warning
• Handling the component parts improperly can accidentally operate (deploy) the air bag and the pre-tensioner seat belt, which may seriously injure you. Read the service warnings and cautions before handling the component parts of the SAS air bag system. (Refer to [AIR BAG SYSTEM SERVICE WARNINGS] in workshop manual.) (Refer to [AIR BAG SYSTEM SERVICE CAUTIONS] in workshop manual.)
• Switch the ignition/main power OFF.
• Disconnect the negative battery terminal/negative lead-acid battery terminal and wait for 1 min or more. (Refer to [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION] in workshop manual.)
• Disconnect the driver-side far side air bag module connector.
• Inspect the driver-side far side air bag module connector.(Corrosion, damage, and disconnected pins)
• Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform repair completion verification 1.
2
PURPOSE: INSPECT WIRING HARNESS (INCLUDING CONNECTOR/TERMINAL) BETWEEN DRIVER-SIDE FAR SIDE AIR BAG MODULE AND SAS CONTROL MODULE FOR MALFUNCTION
• Disconnect the following connectors.
― Front seat driver and passenger-side side air bag modules (Refer to [SIDE AIR BAG MODULE REMOVAL/INSTALLATION] in workshop manual.) (Refer to [PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION] in workshop manual.) (Refer to [DRIVER-SIDE AIR BAG MODULE REMOVAL] in workshop manual.) (Refer to [DRIVER-SIDE AIR BAG MODULE INSTALLATION] in workshop manual.)
― Rear seat driver and passenger-side side air bag modules (Refer to [SIDE AIR BAG MODULE REMOVAL/INSTALLATION] in workshop manual.) (Refer to [PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION] in workshop manual.) (Refer to [DRIVER-SIDE AIR BAG MODULE REMOVAL] in workshop manual.) (Refer to [DRIVER-SIDE AIR BAG MODULE INSTALLATION] in workshop manual.)
― Driver and passenger-side curtain air bag modules (Refer to [CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION] in workshop manual.)
― Driver and passenger-side front seats (Refer to [FRONT SEAT REMOVAL/INSTALLATION] in workshop manual.)
― Driver and passenger-side front pre-tensioner seat belts (Refer to [FRONT SEAT BELT REMOVAL/INSTALLATION] in workshop manual.)
― Driver and passenger-side rear pre-tensioner seat belts (Refer to [REAR SEAT BELT REMOVAL/INSTALLATION] in workshop manual.)
• Inspect the applicable circuit. (See CIRCUIT INSPECTION.) (See CONNECTOR INSPECTION.)
Note
• Inspect the circuit while shaking the wiring harness between the driver-side far side air bag module and the SAS control module.
• Is the circuit normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform repair completion verification 1.
3
PURPOSE: INSPECT DRIVER-SIDE FAR SIDE AIR BAG MODULE
• Switch the ignition/main power OFF.
• Disconnect the negative battery terminal/negative lead-acid battery terminal and wait for 1 min or more. (Refer to [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION] in workshop manual.)
• Connect the SAS control module connectors.
• Connect all the disconnected connectors other than the driver-side far side air bag module connector.
• Connect a 2 ohm resistance between terminals A and B of the driver-side far side air bag module connector (wiring harness side).
• Connect the negative battery terminal/negative lead-acid battery terminal. (Refer to [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION] in workshop manual.)
• Switch the ignition ON (engine off or on)/switch the main power ON (READY off or on).
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Perform the DTC inspection for the SAS control module. (See DTC INSPECTION.)
• Is the same DTC displayed?
Yes
Go to the next step.
No
Replace the driver-side far side air bag module and perform repair completion verification 1.
Repair completion verification 1
PURPOSE: VERIFY IF VEHICLE IS REPAIRED
• Switch the ignition/main power OFF.
• Disconnect the negative battery terminal/negative lead-acid battery terminal and wait for 1 min or more. (Refer to [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION] in workshop manual.)
• Disconnect the 2 ohm resistance.
• Connect the driver-side far side air bag module connector.
• Connect the negative battery terminal/negative lead-acid battery terminal. (Refer to [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION] in workshop manual.)
• Switch the ignition ON (engine off or on)/switch the main power ON (READY off or on).
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Perform the DTC inspection for the SAS control module. (See DTC INSPECTION.)
• Is the same DTC displayed?
Yes
Refer to the CAN (controller area network) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1 again.
• If the malfunction is not resolved, replace the SAS control module, then go to the next step. (Refer to [SAS CONTROL MODULE REMOVAL/INSTALLATION] in workshop manual.)
No
Go to the next step.
Repair completion verification 2
PURPOSE: VERIFY IF OTHER DTCs ARE DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are other DTCs displayed?
Yes
Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.