AVC-LAN Circuit [10/2014 - 09/2017]: Procedure
- INSPECT RADIO RECEIVER ASSEMBLY
- Remove the radio receiver assembly.
Refer to REMOVAL [10/2014 - 09/2017]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 7 (TX1+) - 8 (TX1-) Always 60 to 80 Ω 18 (TX2+) - 19 (TX2-) Always 60 to 80 Ω 11 (TX4+) - 12 (TX4-) Always 60 to 80 Ω Result
Proceed to OK NG
Result:
NG
REPLACE RADIO RECEIVER ASSEMBLY. Refer to REMOVAL [10/2014 - 09/2017]
Result:
OK
See step 2
- Remove the radio receiver assembly.
- CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
- *: w/ Headup Display
- Disconnect the I121, I122 and I123 radio receiver assembly connectors.
- Disconnect the P33 stereo component amplifier assembly connector.
- Disconnect the I42 multi-display assembly connector.
- Disconnect the I132 remote operation controller assembly connector.
- Disconnect the J5 combination meter mirror ECU connector*.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition I121-7 (TX1+) - P33-8 (TX+) Always Below 1 Ω I121-8 (TX1-) - P33-7 (TX-) Always Below 1 Ω I123-11 (TX4+) - I42-7 (TX+) Always Below 1 Ω I123-12 (TX4-) - I42-19 (TX-) Always Below 1 Ω I122-18 (TX2+) - I132-10 (TX+) Always Below 1 Ω I122-19 (TX2-) - I132-11 (TX-) Always Below 1 Ω J5-12 (MPX1) - I42-6 (TX1+)* Always Below 1 Ω J5-13 (MPX2) - I42-18 (TX1-)* Always Below 1 Ω I121-7 (TX1+) or P33-8 (TX+) - Body ground Always 10 kΩ or higher I121-8 (TX1-) or P33-7 (TX-) - Body ground Always 10 kΩ or higher I123-11 (TX4+) or I42-7 (TX+) - Body ground Always 10 kΩ or higher I123-12 (TX4-) or I42-19 (TX-) - Body ground Always 10 kΩ or higher I122-18 (TX2+) or I132-10 (TX+) - Body ground Always 10 kΩ or higher I122-19 (TX2-) or I132-11 (TX-) - Body ground Always 10 kΩ or higher J5-12 (MPX1) - I42-6 (TX1+) - Body ground* Always 10 kΩ or higher J5-13 (MPX2) - I42-18 (TX1-) - Body ground* Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- INSPECT MALFUNCTIONING PARTS
- Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation.
HINT:
- Check all slave units.
- If disconnecting a slave unit causes the master unit to return to normal operation, the slave unit is defective and should be replaced.
OK
Master unit returns to normal operation.
Result
Proceed to OK NG
Result:
OK
REPLACE MALFUNCTIONING PARTS
Result:
NG
REPLACE RADIO RECEIVER ASSEMBLY. Refer to REMOVAL [10/2014 - 09/2017]
- Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation.