Code No.B16A1 Tail Lamp (LH) Circuit Open <Open circuit in the position lamp (LH) circuit, tail lamp (LH) circuit, and the licence plate lamp circuit>
Code No.B16A8 Tail Lamp (LH) Circuit Short <Short circuit in the position lamp (LH) circuit, tail lamp (LH) circuit or the licence plate lamp circuit>












DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA



PROBABLE CAUSES



  • Malfunction of bulbs
  • Damaged harness wires and connectors
  • Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE


STEP 1. Bulb check



Q. Is the check result normal?





STEP 2. Connector check: A-35 headlamp assembly (LH) connector, F-23 rear combination lamp (LH) connector, F-15 licence plate lamp (LH) connector and F-13 licence plate lamp (RH) connector


Q. Is the check result normal?





STEP 3. Resistance measurement at the A-35 headlamp assembly (LH) connector, F-23 rear combination lamp (LH) connector, F-15 licence plate lamp (LH) connector and F-13 licence plate lamp (RH) connector


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the connector terminal of lamp which does not illuminate and the body earth.

  • Measure the resistance between the A-35 headlamp assembly (LH) connector terminal No. 6 and the body earth.
  • Measure the resistance between the F-23 rear combination lamp (LH) connector terminal No. 3 and the body earth.
  • Measure the resistance between the F-15 licence plate lamp (LH) connector terminal No. 1 and the body earth.
  • Measure the resistance between the F-13 licence plate lamp (RH) connector terminal No. 1 and the body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?





STEP 4. Wiring harness check between the A-35 headlamp assembly (LH) connector terminal No. 6, F-23 rear combination lamp (LH) connector terminal No. 1, F-15 licence plate lamp (LH) connector terminal No. 1 or F-13 licence plate lamp (RH) connector terminal No. 1 and the body earth


note Prior to the wiring harness inspection, check intermediate connector F-40, and repair if necessary.

  • Check the earth wires for open circuit.

Q. Is the check result normal?





STEP 5. Connector check: C-304 and C-311 ETACS-ECU connector


Q. Is the check result normal?





STEP 6. Wiring harness check between the A-35 headlamp assembly (LH) connector terminal No. 4, F-23 rear combination lamp (LH) connector terminal No. 3, F-15 licence plate lamp (LH) connector terminal No. 2 or F-13 licence plate lamp (RH) connector terminal No. 2 and C-304 ETACS-ECU connector terminal No. 3 or C-311 ETACS-ECU connector terminal No. 10


note Prior to the wiring harness inspection, check intermediate connectors D-16 and F-39, and repair if necessary.

  • Check the power supply lines for open circuit and short circuit.

Q. Is the check result normal?





STEP 7. Check whether the diagnosis code is reset.


(1)Erase the diagnosis code.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)Check if diagnosis code is set.

Q. Is the diagnosis code set?