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Volvo: 90 volvo 740 gle srs light, volvo 740 gle, spade connectors


Question
i was working on the turnsignal switch and now i have a srs light. the book said to tape the earth ground prior to working or i would get a srs light and have to reset it. i did not tape the earth ground but i did get he light. How do i reset this.

Answer
Sean,
Fault codes are displayed by flashing of warning lamp. Several faults, if present are displayed in succession at 4 seconds intervals.
Requesting Fault Code Display
Turn ignition On, warning lamp will display a steady beam indicating presence of a fault. (Lamp will otherwise be extinguished after approximately 10 seconds). Wait 15 seconds to allow system to complete self-diagnostics.
Ground test terminal for 2-5 seconds. When ground connection is removed, lamp will commence to display fault code(s) before reverting to steady light. Lamp will flash immediately when ground connection is removed, however this is not a fault code just confirmation that a request has been made.
If no fault code is displayed, switch ignition Off and On and repeat test. If this does not function, check connection to combined instrument. Ground leads must be fitted with spade connectors at both ends. Refer to table for fault tracing repair.
The test terminal is in the fuse box marked SRS has only one connector in it. Do not turn ignition Off between request and clearance of fault code. When fault has been corrected, warning lamp must be cancelled (fault code cleared) to restore normal operation. Clear fault code as follows:
Repeat code display procedure by grounding test terminal for 2-5 seconds.
Ground test terminal three times within 1.5-5 seconds, for at least 0.25 seconds on each occasion.
Warning lamp will be extinguished for 4 seconds and then relight for 3 seconds to confirm clearance of fault codes(s). Final extinction of lamp indicates restoration of normal function.
If lamp does not go out, repeat display procedure.