For 1990-2009 cars

## Video Cassette Player (VCP) Always On Early Design

Entertainment Components
Power and Ground Distribution (Early Design)

### Circuit Description

The Video Cassette Player (VCP) plays pre-recorded VHS cassettes. The Tape Retract Module (TRM) supplies the VCP with voltage when the ignition is on and the LCD display screen is pulled down in the viewing position. When the ignition is turned off, the TRM and the VCP lose power at the same time. The TRM has a timer function that allows battery voltage to be restored to the VCP for 12 seconds to retract the cassette tape from the playback head, thus preventing cassette damage. Note that the "cassette in" indicator lamp in the VCP turns on during the 12 second period when the VHS tape is unloaded in the VCP.

### Diagnostic Aids

• | Check for the following conditions:

- | Short to B+ on the IGN voltage input to the TRM.

- | A faulty TRM.

• | An intermittent failure may be very difficult to detect and to diagnose accurately. Faulty electrical connections or wiring causes most intermittent problems. When an intermittent condition is suspected, check the suspected circuits for the following conditions:

- | Improperly formed or damaged terminals.

- | Wire chafing.

- | Damage to connector bodies.

### Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. Determines whether the LCD screen turns the backlight on when the ignition is not on.

2. Verifies repairs made to the VES system.

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: The Video Entertainment System (VES) components, the Video Cassette Player (VCP) and the Audio Video Module (AVM), do not turn off when the ignition switch is off. However, the VCP can be turned off by using the power button, and the AVM can be turned off by placing the video screen in the up (stored) position.
1 |

1. Operate the video entertainment system and play a video cassette.
2. Turn the ignition OFF.

Does the video entertainment system continue to play the video cassette?

--

Go to Step 2

Go to Video System Diagnostic Overview

2 |

1. Ensure that the ignition is OFF.
2. Backprobe the TRM connector and test for battery voltage on the Ignition voltage input circuit to the TRM.

Is voltage present at the test point?

--

Go to Step 3

Go to Step 4

3 | Repair the short to B+ on the Ignition voltage input circuit to the TRM.? Has the repair been made? | -- | Go to Step 5 | --
4 | Replace the TRM. Refer to Tape Retract Module Replacement . Has the repair been made? | -- | Go to Step 5 | --
5 |

1. Turn the ignition switch off.
2. Reconnect the connectors or components that were previously removed.
3. Verify that the VES operates properly.

Does the VES operate normally?

--

System OK

Go to Video System System Check

## Video Cassette Player (VCP) Always On Later Design

Entertainment Components
Power and Ground Distribution (Later Design)

### Circuit Description

The Video Cassette Player (VCP) plays pre-recorded VHS cassettes. The Tape Retract Module (TRM) supplies the VCP with voltage when the ignition is on and the LCD display screen is pulled down in the viewing position. When the ignition is turned off, the TRM and the VCP lose power at the same time. The TRM has a timer function that allows battery voltage to be restored to the VCP for 12 seconds to retract the cassette tape from the playback head, thus preventing cassette damage. Note that the "cassette in" indicator lamp in the VCP turns on during the 12 second period when the VHS tape is unloaded in the VCP.

### Diagnostic Aids

• | Check for the following conditions:

- | Short to B+ on the IGN voltage input to the TRM.

- | A faulty TRM.

• | An intermittent failure may be very difficult to detect and to diagnose accurately. Faulty electrical connections or wiring causes most intermittent problems. When an intermittent condition is suspected, check the suspected circuits for the following conditions:

- | Improperly formed or damaged terminals.

- | Wire chafing.

- | Damage to connector bodies.

### Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. Determines whether the LCD screen turns the backlight on when the ignition is not on.

2. Verifies repairs made to the VES system.

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: The Video Entertainment System (VES) components, the Video Cassette Player (VCP) and the Audio Video Module (AVM), do not turn off when the ignition switch is off. However, the VCP can be turned off by using the power button, and the AVM can be turned off by placing the video screen in the up (stored) position.
1 |

1. Operate the video entertainment system and play a video cassette.
2. Turn the ignition OFF.

Does the video entertainment system continue to play the video cassette?

--

Go to Step 2

Go to Video System Diagnostic Overview

2 |

1. Ensure that the ignition is OFF.
2. Backprobe the TRM connector and test for battery voltage on the Ignition voltage input circuit to the TRM.

Is voltage present at the test point?

--

Go to Step 3

Go to Step 4

3 | Repair the short to B+ on the Ignition voltage input circuit to the TRM.? Has the repair been made? | -- | Go to Step 5 | --
4 | Replace the TRM. Refer to Tape Retract Module Replacement . Has the repair been made? | -- | Go to Step 5 | --
5 |

1. Turn the ignition switch off.
2. Reconnect the connectors or components that were previously removed.
3. Verify that the VES operates properly.

Does the VES operate normally?

--

System OK

Go to Video System System Check