Radio Receiver Communication Error
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (W/O Multi-display): Radio Receiver Communication Error
Radio Receiver Communication Error
INSPECTION PROCEDURE
PROCEDURE
1. IDENTIFY COMPONENT SHOWN BY THE SUB-CODE
(a) Enter the diagnostic mode.
(b) Press the preset switch "2" to change to "Detailed Information Mode".
(c) Identify the component shown by the sub-code.
HINT:
- "190 (radio receiver)" is the component shown by the sub-code in the example shown in the illustration.
- For details of the DTC display, refer to the "DTC CHECK/CLEAR" Audio and Visual System (W/O Multi-display).
NEXT -- Continue to next step.
2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE
(a) Inspect the power source circuit of the component shown by the sub-code.
If the power source circuit is operating normally, proceed to the next step.
Component table
NEXT -- Continue to next step.
3. INSPECT RADIO RECEIVER ASSEMBLY
(a) Disconnect the L51 receiver connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE RADIO RECEIVER ASSEMBLY
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)
HINT:
- Start the check from the circuit that is near the component shown by the sub-code first.
- For details of the connectors, refer to the "Terminals of ECU" Audio and Visual System (W/O Multi-display).
(a) Referring to the AVC-LAN wiring diagram, check the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.
(1) Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.
OK:
There is no open or short circuit.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. REPLACE COMPONENT SHOWN BY SUB-CODE
(a) Replace the component shown by the sub-code with a normal one and check if the same problem occurs again.
OK:
Same problem does not occur.
NG -- REPLACE RADIO RECEIVER ASSEMBLY
OK -- END