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SRS AIR BAG DIAGNOSIS SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-84 STEP 3. Check the front impact sensor (LH) power supply measure at the wiring harness side. (3) Connect the negative battery terminal. CAUTION Do not insert a test probe into the terminal from its front terminal 2 and ground. Q: Is the measured voltage within the specified range? YES : Replace the front impact sensor (LH) (Refer to ). Then go to Step 5. NO : Go to Step 4. STEP 4. Check the harness wires for open circuit or short C-121 (terminal No.48 and 47) and front impact sensor the diagnostic trouble code. If DTC B1417 sets, ). Then go to Step 5. NO : Replace the harness wires between SRS-ECU connector C-121 and front impact sensor (LH) AC305210 CONNECTOR: A-23 AT A-23 (Y) HARNESS SIDE AC308161 A-23 HARNESS SIDE AC AC305210 CONNECTOR: A-23 AT A-23 (Y) HARNESS SIDE 24DB062A CONNECTOR: C-121 C-121 (Y) SRS-ECU 42 31 38 27 21 41 28 39 22 30 25 47 36 33 44 34 45 37 48 26 29 23 40 32 43 35 46 24 B A C-121 INSTRUMENT HARNESS CONNECTOR (REAR VIEW) |