DTC 15-2
DTC 15-2: Faulty Side Air-bag Cutoff Indicator Circuit1. Make sure nothing is on the front passenger's seat.
2. Erase the DTC memory.
3. 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?
YES - Turn the ignition switch OFF, and go to step 4.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures.
NOTE: This DTC may have been caused by turning the ignition switch ON (II) with the gauge assembly disconnected.
4. Turn the ignition switch ON (II), and check that the side airbag cutoff indicator comes on.
Does the side airbag cutoff indicator come on?
YES - Go to step 5.
NO - Go to step 6.
5. Make sure the side airbag cutoff indicator goes off after 5 seconds.
Does the side airbag cutoff indicator go off after 5 seconds?
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 32.
6. Turn the ignition switch OFF.
7. Check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 8.
NO - Repair the short to ground in the No. 10 (7.5 A) fuse circuit.
8. Disconnect the OPDS unit 8P connector D from the OPDS unit (A).
9. Turn the ignition switch ON (II).
10. Check for voltage between the No. 3 terminal of the OPDS unit 8P connector D and body ground. There should be battery voltage.
Is there battery voltage?
YES - Go to step 11.
NO - Go to step 23.
11. Turn the ignition switch OFF.
12. Disconnect the dashboard wire harness 17P connector K from the under-dash fuse/relay box.
13. Turn the ignition switch ON (II).
14. Check for voltage between the No. 3 terminal of the OPDS unit 8P connector D and body ground. There should be 0.5 V or less.
Is the voltage as specified?
YES - Faulty OPDS unit; replace the OPDS unit.
NO - Go to step 15.
15. Turn the ignition switch OFF.
16. Remove the gauge assembly, then disconnect gauge assembly connector B (18P) from the gauge assembly.
17. Turn the ignition switch ON (II).
18. Check for voltage between the No. 3 terminal of the OPDS unit 8P connector D and body ground. There should be 0.5 V or less.
Is the voltage as specified?
YES - Short to power in the gauge assembly; replace the gauge assembly.
NO - Go to step 19.
19. Turn the ignition switch OFF.
20. Disconnect the floor wire harness 21P connector (A) from the dashboard wire harness connector C503.
21. Turn the ignition switch ON (II).
22. Check for voltage between the No. 3 terminal of the OPDS unit 8P connector D and body ground. There should be 0.5 V or less.
Is the voltage as specified?
YES - Short to power in the dashboard wire harness; replace the dashboard wire harness.
NO - Short to power in the floor wire harness or in the OPDS unit harness, or seat subharness (with BOSE sound system); if the OPDS unit harness is OK, replace the floor wire harness.
23. Turn the ignition switch OFF.
24. Remove the gauge assembly. With the connectors still connected to the gauge assembly, backprobe the No. 8 terminal of gauge assembly connector B (18P).
25. Turn the ignition switch ON (II).
26. Check for voltage between the No. 8 terminal of gauge assembly connector B (18P) and body ground. There should be battery voltage.
Is there battery voltage?
YES - Go to step 27.
NO - Go to step 31.
27. Turn the ignition switch OFF.
28. Disconnect the floor wire harness 21P connector (A) from the dashboard wire harness connector C503.
29. Turn the ignition switch ON (II).
30. Check for voltage between the No. 2 terminal of the dashboard wire harness 21P connector C503 and body ground. There should be battery voltage.
Is there battery voltage?
YES - Poor contact at the dashboard wire harness 21P and floor wire harness 21P connectors, an open in the floor wire harness, seat subharness (with BOSE sound system), or OPDS unit harness. Check the connection; if the connection is OK, replace the faulty harness.
NO - Poor contact at gauge assembly connector B (18P) or an open in the dashboard wire harness. Check gauge assembly connector B (18P); if the connections are OK, replace the dashboard wire harness.
31. Check for voltage between the No. 7 terminal of gauge assembly connector B (18P) and body ground. There should be battery voltage.
Is there battery voltage?
YES - Faulty side airbag cutoff indicator circuit; replace the gauge assembly.
NO - Open in the dashboard wire harness; replace the dashboard wire harness.
32. Turn the ignition switch OFF.
33. Disconnect the OPDS unit 8P connector D from the OPDS unit (A).
34. Turn the ignition switch ON (II).
Does the side airbag cutoff indicator come on?
YES - Go to step 35.
NO - Faulty OPDS unit; replace the OPDS unit.
35. Turn the ignition switch OFF.
36. Remove the gauge assembly, then disconnect gauge assembly connector B (18P) from the gauge assembly.
37. Check resistance between the No. 8 terminal of gauge assembly connector B (18P) and body ground. There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Short to ground in the side airbag cutoff indicator circuit; replace the gauge assembly.
NO - Short to ground in dashboard wire harness A, the floor wire harness, seat subharness (with BOSE sound system), or the OPDS unit harness; replace the faulty harness.