SRS-Ecu Memory Check
Required Special Tool:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A
CAUTION:
To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
- Connect scan tool MB991958 to the data link connector (16-pin).
- Read (and write down) all displayed diagnostic trouble codes (Refer to DIAGNOSTIC TROUBLE CODE CHART
).NOTE: If the battery power supply has been disconnected or disrupted by the collision, scan tool MB991958 cannot communicate with the SRS-ECU. Check the battery, then check and, if necessary, repair the front wiring harness and the instrument panel wiring harness before proceeding.
- Read the data list (fault duration and how many times memories are erased), using scan tool MB991958.
Data list
DATA LISTNO. DATA LIST ITEM APPLICABILITY 01 Failure continuation time 1 Maximum time to be stored: 9,999 minutes (approximately seven days) 02 Failure continuation time 2 10 Elimination times Maximum time to be stored: 255 times - Erase the diagnostic trouble codes, and then turn the ignition switch to the "LOCK" (OFF) position.
- Wait for at least one second, and then turn the ignition switch to the "ON" position again.
- After waiting 15 seconds or more, note all displayed diagnostic trouble codes (Refer to DIAGNOSTIC FUNCTION ).