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 the front passenger's seat.

5. 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 go off?
YES - 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.

NO - Remove the front passenger's seat assembly , then reinstall it, calibrate the ODS unit. Programming and Relearning If the problem is still present, replace the front passenger's weight sensor for 4-door, Front Passengers Weight Sensor Replacement (4-Door) for 2-door, Front Passengers Weight Sensor Replacement (2-Door) and if the problem is still present, replace the ODS unit. ODS Unit Replacement