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SRS – Troubleshooting 52B-6 TROUBLESHOOTING STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points. DIAGNOSIS FUNCTION DIAGNOSIS CODES CHECK Connect the MUT- II to the diagnosis connector (16-pin) under the instrument under cover, then check diagnosis codes. ERASING DIAGNOSIS CODES Connect the MUT- II to the diagnosis connector and erase the diagnosis code. Caution II . INSPECTION CHART FOR DIAGNOSIS CODES Inspect according to the inspection chart that is appropriate for the malfunction code. Code No. Diagnosis item Reference page 14 Analog G-sensor system in the SRS-ECU 52B-7 15,16 Safing G-sensor system in the SRS-ECU 52B-7 21, 22, 61, 62 Driver’s side air bag module (squib) system 52B-8 24, 25, 64, 65 Front passenger’s side air bag module (squib) system 52B-9 31, 32 SRS-ECU capacitor system 52B-9 34* Connector lock system 52B-10 35 SRS-ECU (deployed air bag) system 52B-10 41* IG 1 (A) power circuit system 52B-10 42* IG 1 (B) power circuit system 52B-11 43 SRS warning lamp drive circuit Lamp does not illuminate.* 52B-12 system Lamp does not switch off. 52B-12 44 SRS warning lamp drive circuit system 52B-13 45 SRS-ECU non-volatile memory (EEPROM) and A/D converter system 52B-13 51, 52 Driver’s side air bag module (squib ignition drive circuit) system 52B-13 54, 55 Front passenger’s side air bag module (squib ignition drive circuit) system 52B-13 NOTE lamp will return to normal. (2) If the vehicle has a discharged battery it will store the fault codes 41 or 42. When these diagnosis codes are displayed, check the battery. |