DTC Troubleshooting: A1-1x
|DTC A1-1x (A1-10 to A1-19, A1-1A to A1-1F):||Faulty Power Supply (VA Line)|
|1.||Erase the DTC memory.|
|2.||Turn the ignition switch ON (II), and wait for 10 seconds.|
|3.||Read the DTC.|
Is DTC A1-1x indicated?
YES - Go to 4.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index.
|4.||Turn the ignition switch OFF.|
|5.||Check the No. 9 (7.5 A) fuse in the under-dash fuse/relay box.|
Is the fuse OK?
YES - Go to 6.
NO - Replace the No. 9 (7.5 A) fuse.
|6.||Disconnect the negative cable from the battery, and wait for 3 minutes.|
|7.||Disconnect the SRS unit connector A (28P) from the SRS unit.|
|8.||Reconnect the negative cable to the battery.|
|9.||Turn the ignition switch ON (II).|
|10.||Check for voltage between the No. 17 terminal of SRS unit connector A (28P) and body ground. There should be battery voltage.|
Is there battery voltage?
YES - Faulty SRS unit or poor connection at SRS unit connector A (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit.
NO - Go to 11.
|11.||Turn the ignition switch OFF.|
|12.||Disconnect under-dash fuse/relay box connector J (4P).|
|13.||Check resistance between the No. 4 terminal of the under-dash fuse/relay box connector J (4P) and the No. 17 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