81-79

SRS DTC Troubleshooting: 81-79

DTC 81-79: Front Passenger's Weight Sensors Initial Check Failure

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures Technician Safety Information and General Troubleshooting Information. Initial Inspection and Diagnostic Overview

1. Clear the DTC memory. Initial Inspection and Diagnostic Overview

2. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 81-79 indicated?
YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, troubleshoot the DTC.


3. Turn the ignition switch to LOCK (0).

4. Make sure nothing is on or under the front passenger's seat, and make sure nothing is in the seat-back pocket.

5. Turn the ignition switch to ON (II), then check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator go off?
YES - Remove the front passenger's seat assembly Front Seat Removal/Installation, then reinstall it, and calibrate the ODS unit. Programming and Relearning If the problem is still present, replace the seat weight sensors, Service and Repair then clear the DTC. If the problem is still present, replace the ODS unit, ODS Unit Replacementthen clear the DTC.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, troubleshoot the DTC.