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 

   HEIGHT CONTROL SENSOR SUB-ASSEMBLY REAR RH
   
   

   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

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE HEIGHT CONTROL SENSOR SUBASSEMBLY REAR RH 

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 

   HEIGHT CONTROL SENSOR REAR RH - HEADLIGHT BEAM LEVEL CONTROL
   
   

   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

Fig 2: Checking Harness And Connector (Height Control Sensor Rear RH - Headlight Beam Level Control)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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