LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Electronic - Active Height Control) >> Diagnostic Trouble Code Definitions >> DTC C1789 >> Testing Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Testing Procedure

WARNING: This page is about a different car, the 2002 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

For wiring diagram, see Fig 1. For testing procedure, see Fig 2 and Fig 3 .

Fig 1: Wiring Diagram L4 Position Switch Circuit
G00208188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Procedure L4 Position Switch Circuit (1 Of 2)
G00208189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Testing Procedure L4 Position Switch Circuit (2 Of 2)
G00208190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002