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TROUBLESHOOTING SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-180 • The SRS warning lamp "OFF" signal is not sent to the combination meter in the cases below, • The SRS-ECU connector is disconnected. • The SRS-ECU is not working normally due to a failure in its power supply lines. • The wiring harness between the passenger’s air bag off indicator lamp and the SRS-ECU is DIAGNOSIS CODE SET CONDITIONS This diagnosis code will be set if an open circuit has PROBABLE CAUSES • Damaged wiring harnesses or connectors • Malfunction of the SRS-ECU • Malfunction of the passenger’s air bag OFF indicator light DIAGNOSIS PROCEDURE STEP 1. MUT-III CAN bus diagnostics 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 (2) Ignition: LOCK (OFF) position to ON not reset. Q: Is the diagnosis code set? YES : Go to Step 3 . NO : There is an intermittent malfunction such as ). STEP 3. MUT-III diagnosis code CAUTION To prevent damage to MUT-III, always turn the position. Q: Is diagnosis code B1570, B1571, B1572, B1573, B1574, B1575, B1576, B1577, B1578, B1579 or Carry out the troubleshooting of the passenger’s air bag cut off switch system. ). NO : Go to Step 4 . STEP 4 MUT-III actuator test. • Item No.03: Passenger’s air bag off indicator lamp illumination Q: Does the passenger’s air bag off indicator lamp illuminate or go out normally? Go to Step 5 . NO : Replace the passenger’s air bag off ). Then go to Step 6 . |