NO.4 CANNOT TUNE (SEEK DOES NOT STOP)

id0903a1804600

Possible cause

• Center panel malfunction
• Antenna plug poor connection
• Antenna feeder malfunction
• Audio unit malfunction
• Electronic jamming from outside, or inferior condition of broadcasting station radio wave
• Antenna rod not installed.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
• Inspect if feel of SEEK button is normal when button is pushed and released.
• Is it okay?
Yes
Go to the next step.
No
Perform CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION (TOTAL AUDIO). Replace center panel if necessary.
2
• Inspect indication of LCD.
• Is frequency indication increased or decreased when SEEK button is pushed?
Yes
Go to the next step.
No
Perform CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION (TOTAL AUDIO). Replace center panel if necessary.
3
• Manually tune to local broadcasting station and check reception condition.
• Is reception okay?
Yes
Go to the Step 6.
No
Go to the next step.
4
• Inspect antenna plug connection condition.
• Is connection okay?
Yes
Go to the next step.
No
Insert antenna plug securely.
5
• Turn ignition switch to LOCK position.
• Measure continuity between antenna feeder axis and ground.
• Is there any continuity?
Yes
Replace antenna feeder.
No
Go to the next step.
6
• Check if number of broadcasting stations changes depending on time and place.
• Does it change?
Yes
The system is normal. (Explain to customer that SEEK sometimes does not stop depending on signal reception condition.
Note

• Signals tend to reach longer distances in the night. It is conspicuous in AM signals, several audio functions may stop due to foreign broadcasting station or noise. Though the audio system restrains sensitivity of SEEK and SCAN functions in the night, the audio system may select other than desired broadcasting station when signals are considerably strong.This function is linked to the parking light. When the parking light or headlight is turned on, SEEK and SCAN may not function for weak signals.

No
Replace audio unit.