DTC Troubleshooting: 81-59, 81-3D, 81-3E

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