Inspection Procedure
- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION ASSEMBLY - MULTI-DISPLAY CONTROLLER)
- Disconnect the L62 navigation connector.
- Disconnect the R32 controller connector.
- Measure the resistance according to the value (s) in the table below.
Standard resistance
STANDARD RESISTANCE SPECIFICATIONTester Connection Condition Specified Condition L62-11 (RR-) - R32-9 (R3-) Always Below 1 Ω L62-12 (RR+) - R32-8 (R3+) Always Below 1 Ω L62-9 (RL-) - R32-11 (L3-) Always Below 1 Ω L62-10 (RL+) - R32-10 (L3+) Always Below 1 Ω L62-13 (SGD2) - R32-12 (SLD3) Always Below 1 Ω L62-11 (RR-) - Body ground Always 10 kΩ or higher L62-12 (RR+) - Body ground Always 10 kΩ or higher L62-9 (RL-) - Body ground Always 10 kΩ or higher L62-10 (RL+) - 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 DISPLAY AND NAVIGATION ASSEMBLY
- Reconnect the L62 navigation connector.
- Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions, as shown in the chart below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Signal waveform
SIGNAL WAVEFORM REFERENCETester Connection Condition Specified Condition R32-9 (R3-) - Body ground Audio sound is being produced A waveform synchronized with sound is output R32-8 (R3+) - Body ground Audio sound is being produced A waveform synchronized with sound is output R32-11 (L3-) - Body ground Audio sound is being produced A waveform synchronized with sound is output R32-10 (L3+) - Body ground Audio sound is being produced A waveform synchronized with sound is output NG: REPLACE DISPLAY AND NAVIGATION ASSEMBLY (See REMOVAL )
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )