| DTC 12-01: | Voltage for VBU (Regular diagnosis) |
| 1. | Turn the ignition switch OFF. |
| 2. | Connect the HDS to the data link connector (DLC). |
| 3. | Turn the ignition switch ON (II). |
| 4. | Check the VBU in the DATA LIST with the HDS. Is the voltage at 9.2-17.4 V? YES - Check for loose wires or poor connections. If the connections are good, the system is OK at this time.n NO - Go to 5. |
| 5. | Check the No. 1 (70A) fuse in the under-hood fuse/relay box. Is the fuse OK? YES - Reinstall the fuse, and go to 6. NO - Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit.n |
| 6. | Turn the ignition switch OFF. |
| 7. | Disconnect the EPS control unit connector A (2P) and connector D (28P). |
| 8. | Measure the voltage between the EPS control unit connector A (2P) terminal No. 2 and body ground.
Is there battery voltage? YES - Check for loose terminals in the EPS control unit A (2P) connector, and repair if necessary. If no poor connections are found, replace the EPS control unit .n NO - Repair open in the wire between the EPS control unit and under-hood fuse/relay box.n |