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SRS - Post-collision Diagnosis 52B-45 POST-COLLISION DIAGNOSIS Whether or not the air bags have deployed, check and service the vehicle after collision as follows: SRS-ECU MEMORY CHECK 1. Connect the MUT-II to the diagnosis connector. (Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.) Refer to that the ignition switch is LOCK(OFF) when connecting or disconnecting MUT-II. 2. Read (and write down) all displayed diagnosis codes. (Refer to P.52B-9.) If battery power supply has been shut down by the collision, the MUT-II cannot communicate with the SRS-ECU. Check and, repair if necessary, the instrument panel wiring harness before the next job. 3. Use the the MUT-II to read the data list (how long trouble(s) have continued and how often memory have been erased). Data list No Service Data Item Applicability 92 Number indication how often the memory is cleared. Maximum time to be stored: 250 93 How long problem have lasted (How long it takes from the occurrence of the problem till the first air bag squib igniting signal) Maximum time to be stored: 9999 minutes (approximately 7 days) 94 How long problem(s) have lasted (How long it takes from the first air bag squib igniting signal till now.) 4. Erase the diagnosis codes and after waiting 5 seconds or more read (and write down) all displayed diagnosis codes. (Refer to P.52B-9.) |