Headlight Beam Level Control Actuator Circuit [06/2016 - ]: Procedure

1. Disconnect the A16 headlight leveling ECU assembly connector.
2. Disconnect the A62*1 or A40*2 headlight assembly connector.
   • *1: for LH
   • *2: for RH
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   A16-18 (LH2) - A62-2 (LH T)	Always	Below 1 Ω
   A16-11 (LH1) - A62-3 (LHB1)	Always	Below 1 Ω
   A16-24 (LH3) - A62-1 (LH E)	Always	Below 1 Ω

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   A16-17 (RH2) - A40-2 (RHM+)	Always	Below 1 Ω
   A16-10 (RH1) - A40-3 (RHB1)	Always	Below 1 Ω
   A16-23 (RH3) - A40-1 (RH E)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   A16-18 (LH2) - Body ground	Always	10 kΩ or higher
   A16-11 (LH1) - Body ground	Always	10 kΩ or higher
   A16-24 (LH3) - Body ground	Always	10 kΩ or higher

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   A16-17 (RH2) - Body ground	Always	10 kΩ or higher
   A16-10 (RH1) - Body ground	Always	10 kΩ or higher
   A16-23 (RH3) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Replace the headlight assembly with a new or a known good one.

   Refer to REMOVAL [06/2016 - ]

2. Check the operation of the headlight leveling motors.

   OK

   Headlight leveling motors operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (HEADLIGHT LEVELING MOTOR WAS DEFECTIVE) 

Result: 

NG 

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY