DTC 85-61
DTC 85-61: No Signal from OPDS Unit1. Make sure nothing is on the front passenger's seat.
2. Erase the DTC memory.
3. Read the DTC.
Is DTC 85-61 indicated?
YES - Go to step 4.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview
4. Check the connection between the OPDS unit harness 8P connector and the OPDS unit.
Is the connection OK?
YES - Go to step 6.
NO - Repair the poor connection and retest. If DTC 85-61 is still present, go to step 5.
5. Erase the DTC.
6. Read the DTC.
Is DTC 85-61 indicated?
YES - Go to step 7.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions
7. Turn the ignition switch OFF.
8. Check the No. 10 (7.5 A) fuse in the driver's under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 9.
NO - Replace the fuse, then turn the ignition switch ON (II). If the fuse blows again, check for a short in the No. 10 (7.5 A) fuse circuit (dashboard wire harness A, right side wire harness, or OPDS unit harness).
9. Disconnect the OPDS unit harness 8P connector (A) from the OPDS unit.
10. Turn the ignition switch ON (II).
11. Check for voltage between the No. 4 terminal of the OPDS unit harness 8P connector and body ground. There should be battery voltage.
Is there battery voltage?
YES - Go to step 16.
NO - Go to step 12.
12. Turn the ignition switch OFF.
13. Disconnect dashboard wire harness A 34P connector C651 (A) from the right side wire harness C651 (B).
14. Turn the ignition switch ON (II).
15. Check for voltage between the No. 34 terminal of dashboard wire harness A 34P connector C651 and body ground. There should be battery voltage.
Is there battery voltage?
YES - Open in the WHT wire of the right side wire harness or OPDS unit harness; replace the faulty harness.
NO - Open in the WHT wire of the dashboard wire harness A; replace dashboard wire harness A.
16. Turn the ignition switch OFF.
17. Check resistance between the No. 8 terminal of the OPDS unit harness 8P connector and body ground. There should be 0-1.0 Ohm.
Is the resistance as specified?
YES - Go to step 18.
NO - Open in the OPDS unit harness or right side wire harness; replace the faulty harness.
18. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
19. Disconnect SRS unit connector A (28P) from the SRS unit.
20. Check resistance between the No. 14 terminal of SRS unit connector A (28P) and body ground. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified?
YES - Go to step 21.
NO - Go to step 24.
21. Check resistance between the No. 14 terminal of SRS unit connector A (28P) and the No. 7 terminal of the OPDS unit harness 8P connector. There should be 0-1.0 Ohm.
Is the resistance as specified?
YES - Faulty OPDS unit or SRS unit; replace the OPDS unit. If the problem is still present, replace the SRS unit.
NO - Go to step 22.
22. Disconnect the right side wire harness 4P connector C801 (A) from the OPDS unit harness.
23. Check resistance between the No. 14 terminal of SRS unit connector A (28P) and the No. 4 terminal of right side wire harness 4P connector C801. There should be 0-1.0 Ohm.
Is the resistance as specified?
YES - Open in the OPDS unit harness; replace the OPDS unit harness.
NO - Open in dashboard wire harness A or right side wire harness; replace the faulty harness.
24. Disconnect right side wire harness 4P connector (A) from the OPDS unit harness.
25. Check resistance between the No. 14 terminal of SRS unit connector A (28P) and body ground. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified
YES - Short to ground in the OPDS unit harness; replace the OPDS unit harness.
NO - Short to ground in dashboard wire harness A or right side wire harness; replace the faulty harness.