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SRS AIR BAG DIAGNOSIS TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-41 CIRCUIT OPERATION • If an analog G-sensor and saving G-sensor inside the SRS-ECU sense a predetermined colli- DTC SET CONDITIONS • These DTC's are set if there is abnormal resis- tance between the input terminals of the driver's NOTE: *: The squib circuit connectors integrate a "short" spring (which prevents the air bag from deploying .) Therefore, if the connector is damaged or improperly engaged, the short spring may not be released when the connector is connected. . TROUBLESHOOTING HITS • Improper engaged connector or defective short spring* • Damaged wiring harnesses or connectors • Malfunction of the driver's side seat belt pre-tensioner (squib) • Malfunction of the SRS-ECU . DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991911: MUT-III Main Harness B • MB991865: Dummy resister • MB991866: Resister harness AC004095AC CONNECTOR: E-61 E-61 (R) DTC SYMPTOM 26 • Short circuit in driver's side seat belt pre-tensioner (squib) or harness 27 • Open circuit in driver's side seat belt pre-tensioner (squib) or harness • Malfunction of connector contact 66 • Short circuit in driver's side seat belt pre-tensioner (squib) harness leading to the power supply 67 • Short circuit in driver's side seat belt pre-tensioner (squib) harness leading to the ground |