DTC 52

CIRCUIT DESCRIPTION
When there is a frontal crash of sufficient force, up to 30 degrees off the centerline of the vehicle, the SDM will cause enough current to flow to deploy the air bags and will set DTC 51. At this time the SDM will record information regarding SIR system status and vehicle status in EEPROM. DTC 52 will set when the SDM has stored information regarding two frontal crash events.

DTC WILL SET WHEN
The SDM attempts to store frontal crash information and finds the EEPROM data area full. This test is run each time the SDM stores or attempts to store information regarding a frontal crash event and also during the "Turn-ON" tests.

ACTION TAKEN
SDM turns "ON" the "AIR BAG" warning lamp and sets a diagnostic trouble code.

DTC WILL CLEAR WHEN
A scan tool "Clear Codes" command is received by the SDM. If at the next ignition "ON" after receiving a "Clear Codes" command, the SDM detects the data area is full, a history diagnostic trouble code is set. This allows the "AIR BAG" warning lamp to illuminate should any additional malfunctions be detected.