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This code here can be a short in wiring or the steering angle sensor at fault or the VSA modulator control unit at fault.The diagnostic procedure below does have to be followed to pinpoint which component is at fault and then repaired from there.This has to be done with special test equipment.But you can follow it yourself to pinpoint this issue or have another facility do the diagnostic testing to pinpoint the issue.
DTC 64: Sensor Power Voltage
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch OFF, then disconnect the HDS.
4. Test-drive the vehicle around a number of corners.
5. Check for DTCs with the HDS.
Is DTC 64 indicated?
YES - Go to step 6.
NO - Intermittent failure, the system is OK at this time. Check connections at the VSA modulator-control unit 47P connector and G 302.
6. Turn the ignition switch OFF.
7. Disconnect the VSA modulator-control unit 47P connector.
8. Start the engine.
9. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 35 and body ground.
s there 0.1 V or more?
YES - Repair short to power in the wire between the VSA modulator-control unit and yaw rate-lateral acceleration sensor and steering angle sensor.
NO - Go to step 10.
10. Check for continuity between VSA modulator-control unit 47P connector terminal No. 35 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the VSA modulator-control unit and yaw rate-lateral acceleration sensor and steering angle sensor.
NO - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.
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