|
|
Content .. 1023 1024 1025 1026 ..
TROUBLESHOOTING SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-152 Code No.B1472: Seat Belt Pre-Tensioner (LH) (Squib) System Fault for Earth Circuit (Short-Circuited CAUTION If diagnosis code B1472 is set in the SRS-ECU, OPERATION The SRS-ECU judges how severe a collision is by DIAGNOSIS CODE SET CONDITIONS This diagnosis code is set if there is abnormal PROBABLE CAUSES • Damaged wiring harnesses or connectors • Short to the earth in the seat belt pre-tensioner (LH) (squib) harness • Malfunction of the SRS-ECU DIAGNOSIS PROCEDURE STEP 1. MUT-III CAN bus diagnostics Use the MUT-III to diagnose the CAN bus lines. Q: Is the check result normal? YES : Go to Step 2. NO : Repair the CAN bus line (Refer to GROUP STEP 2. Check whether the diagnosis code is Check again if the diagnosis code is set. not reset. Q: Is the diagnosis code set? YES : Go to Step 3. NO : There is an intermittent malfunction such as ). Wire colour code SEAT BELT SRS-ECU CONNECTOR CONNECTOR : CONNECTOR NOTE Seat Belt Pre-Tensioner (LH) (Squib) Circuit |