|
If the voice guide "Unable to obtain vehicle speed. Please try again or contact your dealer for service" is sent from the speaker, the vehicle speed signal of hands free-ECU has a problem. At this time, the hands free-ECU, and the vehicle speed signal of radio and CD player may have a problem.
|
|
- The hands free-ECU may be defective.
- The radio and CD player may be defective.
- Damaged harness wires and connectors
|
|
Check if the speed compensated volume function of radio and CD player works normally during driving.
|
|
Q.
Is the check result normal?
|
|
Troubleshoot the radio and CD player (Refer to ).
|
|
|
|
Use the M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
|
|
|
|
Check again if the diagnosis code is set to the radio and CD player.
|
|
Q.
Is the diagnosis code set?
|
|
Troubleshoot the radio and CD player (Refer to ).
|
|
|
|
Check if the hands free-ECU can be switched to the diagnosis mode.(Refer to <Vehicles with 1CD audio> or <Vehicles with display audio>.)
|
|
Q.
Is the check result normal?
|
|
Perform Inspection Procedure 5: "DIAGNOSIS MODE cannot be made an entry." (Refer to .)
|
|
|
|
Q.
Is the check result normal?
|
|
Replace the hands free-ECU.
|
|
|
|
Replace the radio and CD player.
|
|
|