DTC Troubleshooting: 85-4x, 85-5x, 85-63, 85-64

DTC 85-4x, 85-5x (‘‘x'' can be 0 thru 9 or A thru F), 85-63, 85-64:
 Internal Failure of OPDS Unit
NOTE:
  • Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
  • Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software and retest.
  1. Clear the DTC memory.
  1. 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.
NO -
Go to Step 3 .
  1. Replace the OPDS unit.
  1. 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 -
The system is OK.■
NO -
Replace the SRS unit. ■