DTC B1884 [AIR BAG SYSTEM]

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System Malfunction Location

DTC | System Malfunction Location
--- | ---
M-MDS display
B1884 | Passenger air bag deactivation (PAD) indicator circuit open or short to body ground

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.

• Malfunction in passenger air bag deactivation (PAD) indicator circuit

Possible Causes

• Battery malfunction
• ENGINE 15 A fuse malfunction
• PAD indicator connector malfunction
• Open circuit in wiring harness between battery and PAD indicator
• PAD indicator malfunction
• Open or short circuit in wiring harness between PAD indicator and SAS control module
• SAS control module malfunction

System Wiring Diagram

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Diagnostic Procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | BATTERY INSPECTION • Refer to the battery inspection and inspect the battery. (See BATTERY INSPECTION [L8, LF].) • Is the battery normal? | Yes | Go to the next step.
No | Replace or charge the battery. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)
2 | INSPECT FUSE • Turn the ignition switch to the LOCK position. • Remove the battery cover. • Disconnect the negative battery cable and wait for 1 min or more. (See BATTERY REMOVAL/INSTALLATION [L8, LF].) • Remove the ENGINE15 A fuse. • Is the fuse normal? | Yes | Install the fuse, then go to the next step.
No | Replace the fuse.
3 | INSPECT PAD INDICATOR CONNECTOR Warning • Handling the component parts improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings/cautions and the workshop manual before handling the air bag system components. (See AIR BAG SYSTEM SERVICE WARNINGS.) (See AIR BAG SYSTEM SERVICE CAUTIONS.) • Remove the decoration panel. (See DECORATION PANEL REMOVAL/INSTALLATION.) • Disconnect the PAD indicator connector. (See PASSENGER AIR BAG DEACTIVATION (PAD) INDICATOR REMOVAL/INSTALLATION.) • Inspect the PAD indicator connection. (Corrosion, damage, and disconnected pins) • Is there any malfunction of the PAD indicator connector? | Yes | Replace the PAD indicator wiring harness.
No | Go to the next step.
4 | INSPECT WIRING HARNESS BETWEEN BATTERY AND PAD INDICATOR • Connect the negative battery cable. • Turn the ignition switch to the ON position. • Measure the PAD indicator terminal B voltage. Note • Measure the voltage while shaking the wiring harness between the battery and PAD indicator. • Is the voltage 9 V or more? | Yes | Go to the next step.
No | Repair the wiring harness between the battery and PAD indicator.
5 | INSPECT PAD INDICATOR • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable and wait for 1 min or more. • Remove the console panel. (See CONSOLE PANEL REMOVAL/INSTALLATION.) • Disconnect the SAS control module connectors. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.) • Connect the PAD indicator connector. • Ground PAD indicator connector terminal G using a jumper wire. • Connect the negative battery cable. • Turn the ignition switch to the ON position. • Does the PAD indicator illuminate? | Yes | Go to the next step.
No | Replace the PAD indicator. (See PASSENGER AIR BAG DEACTIVATION (PAD) INDICATOR REMOVAL/INSTALLATION.)
6 | INSPECT WIRING HARNESS BETWEEN PAD INDICATOR AND SAS CONTROL MODULE • Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION.) • Disconnect the clock spring connector. (See CLOCK SPRING REMOVAL/INSTALLATION.) • Remove the glove compartment. (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.) • Disconnect the passenger-side air bag module connector. (See PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION.) • Disconnect the driver and passenger-side seat connectors. (See SEAT REMOVAL/INSTALLATION.) • Remove the back trim. (See BACK TRIM REMOVAL/INSTALLATION.) • Remove the driver and passenger-side pre-tensioner seat belt connectors. (See SEAT BELT REMOVAL/INSTALLATION.) • Inspect the wiring harness between PAD indicator terminal G and SAS control module terminal 1U for the following: ― Short circuit between terminals ― Short to ground ― Open circuit Note • Inspect for continuity while shaking the wiring harness between the SAS control module and PAD indicator. • Is the wiring harness normal? | Yes | Go to the next step.
No | Repair the wiring harness between the PAD indicator and SAS control module.
7 | PERFORM SAS CONTROL MODULE DTC INSPECTION • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable and wait for 1min or more. • Reconnect the disconnected connectors. • Connect the negative battery cable. • Turn the ignition switch to the ON position. • Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC [AIR BAG SYSTEM].) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [AIR BAG SYSTEM].) • Are the same DTCs present? | Yes | Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No | DTC troubleshooting completed.