Question about 2008 Lexus Rx 350

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Audio freakin My radio system (base level) has a pblm ... sometimes it just won't come on, and sometimes when it's on, I've got no control by any of the knobs or buttons. It could be on and playing music on the radio, but I have no control of it. One time I could not even shut it off! Some times it's on but there is nothing showing on the display. Sometimes if I tap the faceplate with my finger it comes back to life. The dealer won't fix it 'cause it doesn't misbehave while in the shop (I now got a video on my cell phone but haven't shown it to them yet).

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  • 7 Answers

At least document you presented the problem to the dealer.... it will no doubt die completely before your warranty is up, but just in case - u have it in writing that it is a problem.

You could try pulling the fuse on the radio to reset it but I doubt that will work

Posted on Jan 17, 2009

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Need to wire up a factory radio plug for 2003 chevy tahoe z71 with bose premium system. need to know what wire gose in what pin in the plug. SOMEONE PLEASE HELP ME!!! PLEASE!!!


Connector Part Information
?€¢
12110088 (Except UQ7 w/o Y91)


?€¢
24-Way F Micro-Pack 100 Series (GRY) (Except UQ7 w/o Y91)


?€¢
15428074 (UQ7 w/o Y91)


?€¢
24-Way F Micro-Pack 100 Series (GRN) (UQ7 w/o Y91)

Pin
Wire Color
Circuit No.
Function
A1
ORN
1044
Radio Class 2 Serial Data
A2
--
--
Not Used
A3
PPL
493
Rear Seat Audio Enable Signal (UQ7 w/o Y91)
A4
RED
1486
FM Composite Signal (UQ7 w/ Y91)
A5-A7
--
--
Not Used
A8
TAN
201
Left Front Speaker Output (+) (UQ3/UQ5)
A8
TAN
511
Left Front Low Level Audio Signal (+) (UQ7)
A9
GRY
118
Left Front Speaker Output (-) (UQ3/UQ5)
A9
DK GRN
1947
Left Front Low Level Audio Signal (-) (UQ7)
A10
LT BLU
115
Right Rear Speaker Output (-) (UQ3/UQ5)
A10
BLK
1946
Right Rear Low Level Audio Signal (-) (UQ7)
A11
DK BLU
46
Right Rear Speaker Output (+) (UQ3/UQ5)
A11
DK BLU
546
Right Rear Low Level Audio Signal (+) (UQ7)
A12
BLK/WHT
1851
Ground
B1
ORN
340
Battery Positive Voltage
B2
--
--
Not Used
B3
PNK
314
Radio On Signal (UQ7 w/o Y91)
B3
DK GRN
145
Antenna Enable Signal (UQ7 w/ Y91)
B4
BRN/WHT
230
Instrument Panel Lamps Dimming Control (w/ Y91)
B5
BLK/WHT
1851
Ground (w/ Y91)
B6
GRY/BLK
2334
Radio Mute (UQ7 w/o Y91)
B7
--
--
Not Used
B8
BRN
199
Left Rear Speaker Output (+) (UQ3/UQ5)
B8
BRN
599
Left Rear Low Level Audio Signal (+) (UQ7)
B9
YEL
116
Left Rear Speaker Output (-) (UQ3/UQ5)
B9
DK GRN/
WHT
1547
Left Rear Low Level Audio Signal (-) (UQ7)
B10
DK GRN
200
Right Front Speaker Output (+) (UQ3/UQ5)
B10
ORN/BLK
1546
Right Front Low Level Audio Signal (-) (UQ7)
B11
LT GRN
117
Right Front Speaker Output (-) (UQ3/UQ5)
B11
LT GRN
512
Right Front Low Level Audio Signal (+) (UQ7)
B12
--
--
Not Used

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Visual Inspection Chart Mechanical Electrical
  • Audio unit
  • Digital audio compact disc changer
  • Antenna and two-piece antenna cable or electric antenna
  • Radio speakers mounting/speaker cones
  • Capacitive suppression bond wire and radio receiver hood bonding strap
  • Central junction box (CJB) fuse:
    • 6 (15A)
    • 2 (25A)
  • Ignition switch
  • Circuitry
  • Audio unit
  • Video system


Audio Unit Self-Diagnostic Mode
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).
  1. To enter the following tests, depress the desired preset button while in the speaker walk-around test or while in the audio unit self-diagnostic mode.
  1. To exit the audio unit self-diagnostic mode, turn the ignition switch or the audio unit off.
  1. If the concern remains and the fault is not detected, proceed to the Symptom Chart to continue diagnostics.
  1. The audio unit self-diagnostic mode has five tests available:
    • Preset button 1 = Audio internal/external SELF TEST. This test is an on-demand self-test. If SELF FAIL is displayed, press TUNE > to scroll view the DTCs stored. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. If the system is OK, SELF PASS will be displayed.
    • Preset button 2 = View/clear continuous DTCs. NO DTCS is displayed if no DTCs are retrieved. If DTCS FOUND is displayed, press TUNE > to view the DTCs retrieved. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. To clear all DTCs, press the EJECT button. DTCS CLEAR will be displayed.
    • Preset button 3 = SIGNAL TEST. This test measures the average strength at the current tuner setting.
    • NOTE: Always DOCUMENT, CLEAR and CARRY OUT the audio unit on-demand self-test again.
      Preset button 4 = Software configuration level. This test queries each audio unit system controller for its software configuration level. SOFT LEVELS will be displayed upon completion of the query. Press TUNE > to scroll view the software configuration version level.
    • Preset button 5 = DISPLAY TEST. This test will light all the audio unit display segments for five seconds. When the test is complete, DISPLAY TEST is displayed on the bezel.

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1 Answer

Radio and clock will not work. The fuses are good i think.


Check fuses first. please rate as fixed if this solves you rissue. report back results.



VISUAL INSPECTION CHART
Mechanical Electrical
  • Integrated control panel with or without tape player physically damaged, misaligned, any controls inoperative.
  • Digital audio compact disc player physically damaged, misaligned, any controls inoperative.
  • Radio antenna lead in cable, electric antenna or bodyphysically damaged or misaligned connections.
  • Radio speaker mounting/speaker cones physically damaged, misaligned.
  • Radio ignition interference capacitor or radio frequency interference suppression bond misaligned, unclean and no metal-to-metal contact.
  • Mobile telephone transceiver; mobile telephone handset, mobile telephone microphone, mobile telephone transceiver holder cradle physically damaged, misaligned.
  • Open fuses: fuse junction panel fuses 8 (5A), 12 (5A), 20 (5A), 22 (5A), 24 (5A) or power distribution box fuse 17 (20A).
  • Open connectors.
  • Corroded connectors.


--------------------------------------------------------------------------
Section 15-00: Audio Systems—Service 1999 Taurus, Sable Workshop Manual DIAGNOSIS AND TESTING Inspection and Verification NOTE: Many customers do not understand the limitations of FM reception. Refer the customer to the Owner Guide for information about the limitations of FM radio performance.

Internal diagnostic examination of the integrated control panel, rear chassis unit and audio compact disc player should be left to the authorized radio service center. However, the automotive technician should be able to analyze and isolate radio reception conditions to the proper area or component causing the condition. All radio conditions can be isolated to one of six general areas:
  • antenna system
  • integrated control unit
  • radio speaker system
  • radio noise suppression equipment
  • rear chassis unit
  • audio communications protocol network
Retrieving Diagnostic Trouble Codes (DTCs)
Using Audio System On-Board Diagnostics
The audio system has on-board diagnostic capabilities and is equipped to check for every component available in the system even if this specific vehicle is not equipped with all components. A Diagnostic Trouble Code (DTC) will be set for the missing components. These DTCs can be ignored if the vehicle is not equipped with these components. The battery must be fully charged for proper audio system operation. The ignition switch must be in the RUN or ACC position. Turn the system on, tune in a strong AM station and verify good reception. After an AM station is checked, tune in a strong FM station. The system is now ready to enter the diagnostic mode. Diagnostic Mode:
NOTE: Battery must be fully charged for proper audio system operation and self-test.

Enter Diagnostics mode by pressing SEEK DOWN button first and then pre-set button 3. Hold both buttons for five seconds. This will suspend all normal radio functions, retain the previously selected frequency and display DIAG.
  1. NOTE: To perform diagnostics, press the appropriate buttons as instructed.

    SYSTEM CONFIGURATION SELF-TEST:
    Press pre-set button 1. This will check for connection of all possible devices and log the diagnostic trouble codes for any device that does not respond. The display will flash SELF while gathering the diagnostic trouble codes, then stop flashing when complete. To exit System Configuration Self-test, press pre-set button 1 again. To retrieve diagnostic trouble codes, press the TUNE UP button. This will display the diagnostic trouble codes if any exist. Continued pressing of the TUNE UP button will display the next diagnostic trouble code. Record codes and refer to the following table. To exit the Retrieval Mode, press pre-set button 1.


    CONFIGURATION SELF-TEST CODES Code Description 0 No diagnostic trouble codes logged 1 No response from rear chassis unit 2 No response from tape deck 3 No response from bezel microprocessor 4 No response from compact disc player 5 No response from steering wheel controls 6 No response from rear seat control 7 No response from remote climate control 8 No response from navigation module 9 Read Only Memory verification failed
    Remember, system configuration will test for all possible equipment connections. Inspect the vehicle to determine actual equipment installed.
  1. Integrated control panel display test:
    To enter the integrated control panel display test, press pre-set button 5. This check will light all segments in the integrated control panel. The system will automatically exit this test after five seconds.
  1. Integrated control panel and rear chassis unit identification:
    To enter this test, press pre-set button 3. This test identifies the software level of the integrated control panel and rear chassis unit. The integrated control panel is tested first, followed by the rear chassis unit. The completed test will exit automatically. For code identification, refer to the following table. The display will have two sequences of five codes each. The first sequence is for the integrated control panel, the second sequence is for the rear chassis unit.


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    Item Part Number Description 1 — Product Type Code 2 — Product Variant Code 3 — Software Version Level 4 — Software Version Release 5 — Software Version Patch

Apr 23, 2009 | 1999 Ford Taurus

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