Height Control Sensor Circuit: Wiring Diagram
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT HEIGHT CONTROL SENSOR SUB-ASSEMBLY REAR RH
- Connect 3 dry cell batteries (1.5 V) in a series.
- Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead from the battery to terminal 3.
- Measure voltage between terminal 2 and terminal 3 when slowly move the link up and down.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Voltage
LINK ANGLE - STANDARD VOLTAGELink Angle Standard voltage +45° (High) 4.5 V 0° (Normal) 2.5 V -45° (Low) 0.5 V
NG : REPLACE HEIGHT CONTROL SENSOR SUBASSEMBLY REAR RH
OK : GO TO NEXT STEP
- CHECK HARNESS AND CONNECTOR (HEIGHT CONTROL SENSOR REAR RH - LEVEL CONTROL ECU)
- Disconnect the H26 connector of height control sensor sub-assembly and the H17 connector of headlight leveling ECU assembly.
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Resistance
TESTER CONNECTION - SPECIFIED CONDITION (RESISTANCE)Tester connection Condition Specified condition H17-16 (SGR) - H26-1 (SHG) Always Below 1 Ω H17-18 (SHR) - H26-2 (SHRR) Always Below 1 Ω H17-20 (SBR) - H26-3 (SHB) Always Below 1 Ω H26-1 (SHG) - Body ground Always 10 kΩ or higher H26-2 (SHRR) - Body ground Always 10 kΩ or higher H26-3 (SHB) - Body ground Always 10 kΩ or higher
NG : REPAIR OR REPLACE HARNESS OR CONNECTOR
OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE