GM Service Manual Online
For 1990-2009 cars only

Object Number: 258791  Size: SH

Notice: Do not attempt to insert any disc into a CD player except those discs which display the symbol shown on the disc label illustration. Insertion of a disc which does not display this symbol, such as the 76 mm (3 in) disc, may cause damage to the CD player and/or disc.

Power Cycling

If the CD is playing when the ignition voltage is removed, upon voltage return, the unit resumes playing from the position reached prior to the ignition shut off. The CD display shows track selected and CD is lit. If the battery and ignition voltages are removed from the unit, upon reapplication of power, the following action occurs:

    • The radio is in the OFF mode and indicates the time of day.
    • The CD lamp turns on.

When the radio is turned on, the following actions occur:

    • The CD is initialized.
    • The CD starts to play track 1.
    • The CD IN lights along with the time of play.

After 5 seconds the track selection displays.

CD Load


Object Number: 258796  Size: SH

The mechanism will automatically complete the loading cycle after you insert the CD (1) approximately 1/2 of the way. The mechanism begins to play track 1 on the disc.


Object Number: 65134  Size: SH

If a cartridge (1) is not presently loaded, the CD Load function is available at all times.

CD Eject


Object Number: 65130  Size: SH

The CD eject function is active with battery voltage. You may eject the disc (1) with the ignition switch in the off position. With the radio and ignition in the ON position, pressing the EJECT button mutes the disc and the audio switches to the previous radio function. The loading motors eject the disc. The CD indicator turns off.


Object Number: 65134  Size: SH

At any time, with the radio or the ignition in the ON position or the OFF position, if you do not remove an ejected disc from the CD load mechanism within 25 seconds the disc will automatically reload. The play mode will not activate.

Source Button

Press the Source button in order to switch between the radio and the tape. An arrow will appear when the tape is active. Press the Source button in order to switch between the CD and the radio. CD PLAY appears when the CD is active.

Play

Insert a disc part way into the slot, label side up. The player will pull the disc in. The disc will begin playing.

Recall Button

Press the RECALL button in order to display the current track number.

Pressing the button a second time within 5 seconds displays the length of time that the current track has been playing.

Pressing the button a third time within 5 seconds displays the time of day (TOD).

If successive depression of the RECALL button exceed the 5 second intervals, the display defaults to the TOD.

Stop

The following functions stop the CD player:

    • The AM/FM button
    • The SOURCE button (dual playback applications only)
    • Ejecting a disc
    • Loading a tape

Press the AM/FM button in order to switch the unit to the radio mode. This will display the last frequency and band selected. The SOURCE button switches the unit to cassette mode only on dual playback units with a cassette loaded. Load a tape in order to switch the unit to the cassette mode. Eject the disc, or CD changer cartridge in order to switch the unit to the tuner mode.

Previous Selection Button (PREV)

The PREV button moves the player and starts playback of the current track unless elapsed time is less than 8 seconds. If the elapsed time is less than 8 seconds, the player moves to the previous track. If the player is in random mode, the previous track is the track before the current track in the random library.

Next Select Button (NEXT)

Press the NEXT button in order to advance the player to the next track. If the player is in random mode, the next track is the subsequent preselected track in the random library.

Random (RDM)

The Random (RDM) button, if equipped, is a non-latching control. The RDM button that serves a dual function with one of the radio presets. Press the RDM function in the CD play mode, in order to stop playing the current selection while the microcomputer chooses a random playback order. Play then resumes, the tracks play in the random order that was chosen. When the final selection has been played, the unit continues playing in the original random order. Press the random push-button at any point during random playback in order to continue in the normal sequence beginning with the current track. For remote CD changer options, the Random feature operates between the tracks on all of the available discs. The Random symbol (RDM) displays when the feature is active.

Fast Reverse

The REV (fast reverse) button is a non-latching momentary contact control. The REV button serves a dual function with a radio preset button. The radio preset button is a press and hold type button. The button allows reverse movement within the disc at a faster rate than normal playback rate as long as the button is held. When activated, the audio level reduces by 6dB. The disc plays in the reverse direction at a rate of 6 times normal speed. Elapsed time within the selected track displays while in the REV mode. The following items display after you release the REV button:

    • The track number (disc number in CD applications)
    • The user selected default

Fast Forward

The FWD (fast forward) button is a non-latching momentary contact control. The FWD button serves a dual function with a radio preset button. The radio preset button is a press and hold type button. The button allows forward movement within the disc at a faster rate than normal playback rate as long as the button is held. When activated, the audio level reduces by 6dB. The disc plays in the forward direction at a rate of 6 times normal speed. Elapsed time within the selected track displays while in the FWD mode. The following items display after you release the FWD button:

    • The track number (disc number in CD applications)
    • The user selected default

Disc Select (CD Changer)

For CD changer applications, the radio SIDE button functions as disc select when you are in the CD mode. Each momentary button press increments the disc number by one, starting from the presently selected disc or at the lowest numbered disc, if a disc had not been previously selected. The disc count wraps back to the first available disc after the last disc is selected. Only the cartridge slot numbers with discs installed are available for selection. During the selection process the following actions occur:

    • The disc number displays.
    • The track number displays.
    • The audio mutes.

The disc and track numbers always display simultaneously. The disk and track numbers continue to display for 5 seconds after you select a disc. This function replicates on models that are equipped with steering wheel controls.

Error (ERR) Detection

The unit indicates an ERR in the display if any of the following conditions exist:

    • Moisture impairs the focusing mechanism.
    • A tracking problem occurs.
    • A servo problem occurs.
    • A disc is inserted upside down.

The unit switches to the radio mode and ejects the CD. The ERR remains lit in the display for 5 seconds, along with the normal information. If you insert CD upside down, the following actions occur:

    • The CD player is not able to initialize.
    • The unit will not shift into the audio modes.
    • An ERR is lit in the display.
    • The disc ejects.

The ERR graphics turn off under one of the following conditions:

    • 5 seconds expire
    • The CD is reinserted correctly.

The ERR display does not light unless the following conditions are true:

    • The CD player is active.
    • The CD player is in the play mode.

The ERR display also will not light under the following conditions:

    • The ambient temperature exceeds a preset temperature.
    • The CD operation is not functional.
    • The CD is in jeopardy of damaging the laser.

The disc ejects and ERR lights in the display. The ERR is maintained in the display until the temperature changes to a safe operating temperature. The unit does not accept a disc while the ERR is displayed.

Mode Switching

The unit changes status without popping on the audio lines. The lapses do not exceed 2 seconds between switching sources. After the initialization occurs there are no pauses.