LEMON Manuals: Even more car manuals for everyone
Home >> Geo >> 1991 >> Prizm Base, 4D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Air Bag Restraint System) >> System Testing - Diagnostic Charts (Metro) >> Current Code 51, Accident Detected >> Action Taken

Action Taken

WARNING: This page is about a different car, the 1991 Geo Storm, 1991 Geo Metro, 1990 Geo Storm, and 1990 Geo Metro. However, it is still accessible from the selected car via links, so may be relevant.

DERM turns on INFLATABLE RESTRAINT indicator light until current Code 51 is cleared.

NOTE: Test numbers refer to test numbers on diagnostic chart. For circuit number identification, see WIRING DIAGRAMS  .
  1. Incorrect diagnosis will occur if SIR DIAGNOSTIC SYSTEM CHECK is not performed.
  2. If a Code 51 is current without signs of frontal impact and no deployment, code has set falsely and DERM should be replaced.
  3. History Code 51 cannot be cleared because both arming sensor and discriminating sensor closing simultaneously is permanently stored in Electrically Erasable Programmable Read Only Memory (EEPROM) of DERM.
Fig 1: Current Code 51, Accident Detected
G91C12759Courtesy of GENERAL MOTORS CORP.