The control module self-diagnoses SSPS system. If there is any malfunction, the warning lamp comes ON and at the same time a trouble code is set. The trouble code can be retrieved or cleared only by scan tool. In normal condition, If the ignition is turned on, the warning lamp comes on for the first 2 sec and out. During this 2 sec, the control module is diagnosing SSPS system, so a driver can feel a little heavy steering effort. If the warning lamp stays on after the 2 sec or comes on afterward, it means there is a malfunction and a related trouble code is recorded.
The warning lamp once come on does not go off even if the malfunction is cleared. It goes off after ignition is turned off and on without a malfunction.
However the trouble code still remains in the control module.