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DTC B1519: SRS-ECU connector lock out of order
 
 
 
 
DTC SET CONDITION
This DTC is set if a poor connection at the SRS-ECU is detected.
 
 
TROUBLESHOOTING HINTS
  • Damaged connectors
  • Malfunction of the SRS-ECU
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
(1)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
Connect scan tool (M.U.T.-III). Refer to "How to connect the scan tool ."
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the CAN bus line found to be normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Connect the negative battery terminal.
(2) Check if the DTC is set.
(3) Disconnect the negative battery terminal.
Is DTC set?
Go to Step 3.
The procedure is complete.
 
STEP 3. Check at the SRS-ECU connector.
(1) Disconnect the SRS-ECU connector.
(2) Check the connector lock switch terminal inside the harness side connector for improper contact or deformation.
Is the connector lock switch normal?
Go to Step 4.
Replace the connector.
 
STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Erase the DTC.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is DTC set?
Replace SRS-ECU (Refer to ).
There is an intermittent malfunction such as poorly engaged connector(s) or open circuit (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).