HFT System Symptom Troubleshooting - The HFT messages cannot be heard or are weak
The HFL messages cannot be heard or are weak
  1. Turn the ignition switch to ON (II).
  1. Check that the audio system is operating normally and the speaker sound levels from different audio sources (AM, FM, CD, TA, Navigation, etc.).
Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources?
YES -
Go to Step 3 .
NO -
Refer to the audio system symptom troubleshooting.■
  1. Press the HFT talk button.
Does the audio system mute when HFL messages are being played?
YES -
Go to Step 4 .
NO -
Go to Step 9 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect audio unit connector B (20P) and the Hands Free Telephone control unit 28P connector.
  1. Check for continuity between Hands Free Telephone control unit 28P connector terminals No. 11 and No. 25 and audio unit connector B (20P) terminals No. 19 and No. 9.
Is there continuity?
YES -
Go to Step 7 .
NO -
Open in the wire(s) between Hands Free Telephone control unit and audio unit. Replace the affected harness.■