Code No. B2513 Levelling actuator output error


caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA



PROBABLE CAUSES



  • Malfunction of headlamp assembly (headlamp levelling unit)
  • Malfunction of the headlamp automatic levelling-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Connector check: A-42 headlamp assembly (LH) connector, C-117 headlamp automatic levelling-ECU connector


Q. Is the check result normal?





STEP 2. Wiring harness check between the A-42 headlamp assembly (LH) connector terminal No. 2 and the C-117 headlamp automatic levelling-ECU connector terminal No. 14



  • Check the signal lines for short circuit.

Q. Is the check result normal?





STEP 3. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. B2513 set?





STEP 4. Connector check: A-62 headlamp assembly (RH) connector


Q. Is the check result normal?





STEP 5. Wiring harness check between the A-62 headlamp assembly (RH) connector terminal No. 2 and the C-117 headlamp automatic levelling-ECU connector terminal No. 13



  • Check the signal lines for short circuit.

Q. Is the check result normal?





STEP 6. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. B2513 set?





STEP 7. M.U.T.-III data list


(1)Disconnect the headlamp assembly (LH) and (RH) connector.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
Item No.
 Item name
 Normal condition
Item 68
 A/L actuator output voltage
 Indicates the voltage value of system voltage within the range of 20 to 80%.
OK: Normal condition is displayed.

Q. Is the check result normal?





STEP 8. Check the headlamp assembly (LH).



(1)Disconnect the headlamp assembly (RH) connector.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)Perform the drive test using the M.U.T.-III. Refer to .

Q. Is the check result normal?





STEP 9. Check the headlamp assembly (RH).



(1)Disconnect the headlamp assembly (LH) connector.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)Perform the drive test using the M.U.T.-III. Refer to .

Q. Is the check result normal?