| DTC 81-59: | Central Processing Unit (CPU) Internal Circuit Malfunction |
| DTC 81-3E: | Central Processing Unit (CPU) Internal Circuit Malfunction |
| 1. | Turn the ignition switch ON (II). |
| 2. | Clear the DTC with the HDS. |
| 3. | Turn the ignition switch OFF, then turn it ON (II) again. |
| 4. | Turn the steering wheel from lock to lock. |
| 5. | Check for DTCs with the HDS. Is DTC 81-59, 81-3D or 81-3E indicated? YES - Check for loose terminals in the VSA modulator-control unit 37P connector. If necessary, substitute a known-good VSA modulator-control unit and retest.n NO - Intermittent failure, the system is OK at this time. Check for loose terminals at the VSA modulator-control unit 37P connector. Refer to intermittent failures troubleshooting.n |