DTC 73
DTC 73: Brake Fluid Level Switch Malfunction1. Turn the ignition switch to LOCK (0).
2. Check the brake fluid level in the subreservoir.
Is brake fluid level OK?
YES - Go to step 3.
NO - Inspect the brake pads, and add brake fluid, then go to step 3.
3. Turn the ignition switch to ON (II).
4. Clear the DTC with the HDS.
5. Turn the ignition switch to LOCK (0).
6. Turn the ignition switch to ON (II).
7. Check for DTCs with the HDS.
Is DTC 73 indicated?
YES - Go to step 8.
NO - Intermittent failure, the system is OK at this time.
8. Clear the DTC with the HDS.
9. Turn the ignition switch to LOCK (0).
10. Disconnect the brake fluid level switch 2P connector.
11. Disconnect the gauge control module (tach) 36P connector.
12. Check for continuity between brake level switch 2P connector terminal No. 2 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the gauge control module (tach) and the brake fluid level switch.
NO - Go to step 13.
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Check for DTCs with the HDS.
Is DTC 73 indicated?
YES - Replace the subreservoir (brake fluid level switch is included).
NO - Do the self-diagnostic function on the gauge control module.