Inspection Procedure

1. Connect 3 dry cell batteries (1.5 V) in series.
2. Remove the height control sensor sub-assembly rear.
3. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead from the battery to terminal 3.
4. Measure the voltage between terminals 2 and 3 while slowly moving the link up and down.

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   L9-2 (SHRR) - L9-1 (SHG)	+45° (High)	Approx. 4.5 V
   L9-2 (SHRR) - L9-1 (SHG)	0° (Normal)	Approx. 2.5 V
   L9-2 (SHRR) - L9-1 (SHG)	-45° (Low)	Approx. 0.5 V

NG: REPLACE HEIGHT CONTROL SENSOR SUB-ASSEMBLY REAR RH 

Fig 1: Inspecting Height Control Sensor Sub-Assembly Rear RH

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OK: Go to next step 

1. Disconnect connector L9 of the height control sensor sub-assembly and connector A21 of the headlight leveling ECU assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   A21-17 (SGR) - L9-1 (SHG)	Always	Below 1 Ω
   A21-19 (SHRL) - L9-2 (SHRR)	Always	Below 1 Ω
   A21-21 (SBR) - L9-3 (SHB)	Always	Below 1 Ω
   L9-3 (SHB) - Body ground	Always	10 kΩ or higher
   L9-2 (SHRR) - Body ground	Always	10 kΩ or higher
   L9-1 (SHG) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Disconnecting Headlight Beam Level Control ECU Connector

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OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE