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DTC B2444, U2017

id0802a0802700

DTC | B2444 | Driver-side side air bag sensor internal circuit malfunction
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U2017 | Driver-side side air bag sensor communication error
DETECTION CONDITION | Warning • Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure. • Wiring harness between the driver-side side air bag sensor and SAS control module has a malfunction. • Driver-side side air bag sensor circuit has a malfunction.
POSSIBLE CAUSE | • Open or short circuit in the wiring harness between the driver-side side air bag sensor and SAS control module • Driver-side side air bag sensor malfunction • SAS control module malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | • Using the WDS or equivalent, confirm the display status of the PID. (See PID/DATA MONITOR TABLE.) - OD_D_CRSH Is the driver-side side air bag sensor normal? | Yes | [Present malfunction diagnosis] Replace the SAS control module. [Past malfunction diagnosis] DTC troubleshooting completed.
No | Go to the next step.
2 | Warning • Handling the air bag system components improperly can accidentally operate (deploy) the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the SRS air bag system components. (See SERVICE WARNINGS.) (See SERVICE CAUTIONS.) Turn the ignition switch to the LOCK position. Disconnect the negative battery cable and wait for 1 min or more. Remove the column cover. Disconnect the clock spring connector. Remove the passenger-side air bag module. Disconnect the driver and passenger-side side air bag module connectors. (Vehicles with side air bags) Remove the C pillar trim on both sides. (Vehicles with curtain air bags) Disconnect the driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bags) Remove the driver and passenger-side B-pillar lower trims. (Vehicles with pre-tensioner seat belts) Disconnect the driver and passenger-side pre-tensioner seat belt connectors. (Vehicles with pre-tensioner seat belts) Remove the console. Disconnect the SAS control module connector. Disconnect the driver-side side air bag sensor connector. • Inspect the wiring harnesses between SAS control module terminal 1S and driver-side side air bag sensor terminal A, SAS control module terminal 1R and driver-side side air bag sensor terminal B for the following: - Short to body ground - Short to power supply - Open circuit Is the wiring harness normal? | Yes | Replace the driver-side side air bag sensor, then go to the next step. (See SIDE AIR BAG SENSOR REMOVAL/INSTALLATION.)
No | Replace the air bag wiring harness.
3 | Turn the ignition switch to the LOCK position. Disconnect the negative battery cable and wait for 1 min or more. Connect the SAS control module connector. Connect the driver-side side air bag sensor connector. Connect the curtain air bag module connectors on both sides. Connect the side air bag module connectors on both sides. Connect the passenger-side air bag module connector. Connect the driver-side air bag module connector. Are DTCs B2444 and/or U2017 indicated? | Yes | [Present malfunction diagnosis] Replace the SAS control module. [Past malfunction diagnosis] DTC inspection completed.
No | DTC inspection completed.