DTC A2-1x (A2-10 to A2-19, A2-1A to A2-1F): | Faulty Power Supply (VB Line) |
1. | Check the No. 11 (10 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES - Go to 11. NO - Go to 2. |
2. | Replace the No. 11 (10 A) fuse. |
3. | Turn the ignition switch ON (II) and wait for 30 seconds. Then turn the ignition switch OFF. |
4. | Check the No. 11 (10 A) fuse. Is the fuse OK? YES - The system is OK at this time.n NO - Go to 5. |
5. | Replace the No. 11 (10 A) fuse. |
6. | Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes. |
7. | Disconnect SRS unit connector A (28P) from the SRS unit. |
8. | Reconnect the negative cable to the battery. |
9. | Turn the ignition switch ON (II), and wait for 30 seconds. Then turn the ignition switch OFF. |
10. | Check the No. 11 (10 A) fuse. Is the fuse OK? YES - Short to ground in the SRS unit; replace the SRS unit.n NO - Short to ground in the dashboard wire harness or in the driver's under-dash fuse/relay box No. 11 (10 A) fuse line; replace the dashboard wire harness. If the problem is still there, replace the driver's under-dash fuse/relay box.n |
11. | Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes. |
12. | Disconnect SRS unit connector A (28P) from the SRS unit. |
13. | Reconnect the negative cable to the battery. |
14. | Connect a voltmeter between the No. 18 terminal of SRS unit connector A (28P) and body ground. Turn the ignition switch ON (II), and measure voltage. There should be battery voltage when the ignition on.
Is there battery voltage? YES - Faulty SRS unit or poor connection at SRS unit connector A (28P) and the SRS unit; check the connection. If the connection is OK, replace the SRS unit.n NO - Go to 15. |
15. | Turn the ignition switch OFF. |
16. | Disconnect under-dash fuse/relay box connector J (4P).
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17. | Check resistance between the No. 1 terminal of the under-dash fuse/relay box connector J (4P) and the No. 18 terminal of SRS unit connector A (28P). There should be 0-1.0 W.
Is the resistance as specified? YES - Open in the under-dash fuse/relay box or poor connection between connector J (4P) and the driver's under-dash fuse/relay box; check the connection. If the connection is OK, replace the under-dash fuse/relay box.n NO - Open in the dashboard wire harness; replace the dashboard wire harness.n |