This is a strange one. Drive car and suddenly air bag light comes on, then a short while after all warning lights comes on dash, speedo and rev counter goes to zero and time clock goes to 00.00 and interior light comes on then all goes back to normal except time clock has to be reset and air bag warning stays on, some codes stored 18058 power train data bus missing and 01317 air bag control module instrument cluster.we got a second hand dash panel and programmed it to car and thought it was fixed but 2 days later all back on again, we have checked charging rate all fuses etc, car drives perfectly. we have run out of ideas, We need Help Thanks

Hi

vaguely remember a connection issue in block connectors located scuttle/ bulk head. It a few year back cant recall exact details but worth a look.
It was connected with instrument as customer originally just asked be to programmed a 2nd cluster he had already purchased, but that was not the fault.

Aidan

I would try disconnecting the oil level sensor in the sump.