Inspection Procedure
WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
- Check for open or short in harness and connector between navigation ECU and television camera ECU.
- Disconnect the T31 connector from the television camera ECU.
- Disconnect the N3 connector from the navigation ECU.
- Measure the resistance according to the value(s) in the table below.
Standard:
TERMINAL RESISTANCE SPECIFICATION CHARTTester connection Condition Specified condition TX1+ (T31-36) - TX+ (N3-5) Always Below 1 Ω TX1- (T31-35) - TX- (N3-10) Always Below 1 Ω TX1+ (T31-36) - Body ground Always 10 kΩ or higher TX1- (T31-35) - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: Repair or replace harness or connector.
- OK: Go To Next Step
- Check for open or short in harness and connector between multi-display and television camera ECU.
- Disconnect the T31 connector from the television camera ECU.
- Disconnect the M5 connector from the multi-display assembly.
- Measure the resistance according to the value(s) in the table below.
Standard:
TERMINAL RESISTANCE SPECIFICATION CHARTTester connection Condition Specified condition TX+ (T31-29) - TX1+ (M5-4) Always Below 1 Ω TX- (T31-30) - TX1- (M5-5) Always Below 1 Ω TX+ (T31-29) - Body ground Always 10 kΩ or higher TX- (T31-30) - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: Repair or replace harness or connector.
- OK: Proceed to next circuit inspection shown in problem symptoms table (see PROBLEM SYMPTOMS TABLE ).