STEP 4. Check the harness short circuit between seat belt switch (passenger’s side) connector and the SRS-ECU connector.
(1) Disconnect the negative battery terminal.
(2) Disconnect the seat belt switch (passenger’s side) connector.
(3) While pushing the part "A" indicated in the figure of the harness side connector, turn the lock lever to the direction of the arrow to release the lock lever, and disconnect the SRS-ECU connector.
(4) Connect the negative battery terminal.
(5) Ignition switch: ON.
(6) Measure the voltage between PBS-, PBSO line and body ground.Voltage should measure 1 V or less.
Is the check result normal?
Go to Step 5. Repair the harness wires PBS-, PBSO line between SRS-ECU connector and the seat belt switch (passenger’s side) connector.