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DTC 73:
Yaw Rate Sensor (Power Supply)
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Turn the ignition switch to LOCK (0).
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Disconnect the yaw rate-lateral acceleration sensor 4P connector (without i-SHIFT model) or yaw rate-lateral/longitudinal acceleration sensor 4P connector (with i-SHIFT model).
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Turn the ignition switch to ON (II).
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Measure the voltage between body ground and yaw rate-lateral acceleration sensor 4P connector terminal No. 1 (without i-SHIFT model) or yaw rate-lateral/longitudinal acceleration sensor 4P connector terminal No. 1 (with i-SHIFT model).
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Is there battery voltage?
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YES
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NO
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Repair open (or high resistance) in the wire between the No. 4 (7.5 A) fuse in the under-dash fuse/relay box and the yaw rate-lateral acceleration sensor (without i-SHIFT model) or yaw rate-lateral/longitudinal acceleration sensor (with i-SHIFT model).■
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Turn the ignition switch to LOCK (0).
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Reconnect the yaw rate-lateral acceleration sensor 4P connector (without i-SHIFT model) or yaw rate-lateral/longitudinal acceleration sensor 4P connector (with i-SHIFT model).
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Turn the ignition switch to ON (II).
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Clear the DTC with the HDS.
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Turn the ignition switch to LOCK (0), then turn it to ON (II).
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Check for DTCs with the HDS.
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YES
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NO
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Intermittent failure, the system is OK at this time. Check for loose terminals between the yaw rate-lateral acceleration sensor 4P connector (without i-SHIFT model) or yaw rate-lateral/longitudinal acceleration sensor 4P connector (with i-SHIFT model) and the VSA modulator-control unit 46P connector.
Refer to intermittent failures troubleshooting.
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Turn the ignition switch to LOCK (0).
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Turn the ignition switch to ON (II).
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Clear the DTC with the HDS.
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Turn the ignition switch to LOCK (0), then turn it to ON (II).
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Check for DTCs with the HDS.
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