DTC 85-4x

DTC 81-4x, 81-5x, 81-63, 81-64 ("x" can be 0 thru 9 or A thru F): Internal Failure of the Front Passenger's Weight Sensor Unit

DTC 85-4x, 85-5x, 85-63, 85-64 ("x" can be 0 thru 9 or A thru F): Internal Failure of the OPDS Unit

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.

1. Clear the DTC memory.
2. Turn the ignition switch 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 81-4x, 81-5x, 81-63, 81-64, 85-4x, 85-5x, 85-63, or 85-64 indicated?

YES - Go to step 3.

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

3. Calibrate the front passenger's weight sensor unit or initialize the OPDS unit.
4. Turn the ignition switch 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 - The system is OK.

NO - Go to step 5.

5. Replace the front passenger's weight sensor unit or replace the OPDS unit.
6. Turn the ignition switch 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 - The system is OK.

NO - Replace the SRS unit.