DTC 33-02:
Upper FET Stuck ON (Initial Diagnosis)
DTC 33-07:
Fail-safe Relay Stuck ON (Initial Diagnosis)
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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).
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Start the engine.
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Turn the steering wheel from lock to lock several times, and hold the steering wheel for 10 seconds or more.
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Check for DTCs with the HDS.
Is DTC 33-02 or 34-02 indicated?
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YES
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NO
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Intermittent failure, the system is OK at this time.■
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Turn the ignition switch to LOCK (0).
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Disconnect the EPS control unit connector B (2P).
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Turn the ignition switch to ON (II).
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Measure the voltage between body ground and EPS control unit connector B (2P) No. 1 terminal, and No. 2 terminal.
Is there battery voltage?
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YES
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-
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Repair short to power in the wire between the EPS control unit and the EPS motor.■
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NO
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-
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Check for loose terminal in the EPS control unit connectors, and repair if necessary. If no poor connections are found,
replace the EPS control unit.
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