DESCRIPTION
The dome lamp is controlled by the instrument cluster which provides power at all times, regardless of the ignition switch position. The ground circuit for the lamp is switched through the integral dome lamp switch or through the door ajar switches via the instrument cluster.
The dome lamp lens and bulb are available for service replacement. If either of the lamp switch or bulb holders is faulty or damaged, the dome lamp assembly must be replaced.
For service of the dome lamp bulb, refer to the appropriate wiring information.
OPERATION
The dome lamp is activated by the door ajar switches via the instrument cluster. When all of the doors are closed, the lamp can be activated by depressing the lens. When any door is open, depressing the lamp lense to activate the lamp switch will not turn the lamps off.
The instrument cluster monitors the door ajar switches. When a door is open the instrument cluster grounds the low side drivers to turn on the lamp. Upon closing all doors, the instrument cluster initiates a 30 second timer. If any of the doors are opened during the "time out" cycle, the instrument cluster will reset the timer until all doors are closed. The instrument cluster will faid to off when the doors are closed and the ignition is turned ON, the time out expires or the power locks are activated.
Scheme 1
- Using a small flat blade, pry the left side (driver's side) of the dome lamp lens downward from dome lamp.
- Allow the lens to hang down (Scheme 1), this will disengage the right side of the lamp (passenger's side) from the headliner.
- Pull the right side of the lamp down and slide the lamp to the right (Scheme 2)
- Separate the lamp from the headliner.
- Disengage dome lamp wire connector from body wire harness.
- Separate dome lamp from vehicle.
Scheme 2
- Position dome lamp at headliner.
- Connect dome lamp wire connector to body wire harness.
- Position the left side of the lamp in the head-liner opening and slide lamp to the left (Scheme 1)
- Push the right side of the lamp in the head-liner opening and push the lamp lens up into the lamp to secure (Scheme 1)
The door ajar switches are integral to the door latches on each door. The switches close a path to ground for the Instrument Cluster when a door is opened.
The door ajar switches cannot be repaired and, if faulty or damaged, the door latch unit must be replaced. Refer to LATCH Front or LATCH Rear for the removal and installation procedure.
The door ajar switches close a path to ground for the Instrument Cluster when a door is opened. The passenger front door is connected in a parallel-series circuit between ground and the Instrument Cluster, while the driver side front door ajar switch is connected in series between ground and the Instrument Cluster to provide a unique input. The Instrument Cluster reads the switch status, then sends the proper switch status messages to other electronic modules over the Programmable Communications Interface (PCI) data bus network. The door ajar switches can be diagnosed using conventional diagnostic tools and methods. Refer to LATCH Front or LATCH Rear for the Removal and Installation procedures.
Scheme 3
- Disconnect and isolate the battery negative cable.
- Remove the glove box from the instrument panel. (Refer to «GLOVE BOX»(/dodge/pickup-r1500/1997-2012/remont/gauges-instrument-panels/#instrument-panel) ) for the procedures.
- Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to access the instrument panel wire harness connector on the glove box lamp and switch (Scheme 3)
- Disconnect the instrument panel wire harness connector from the connector receptacle on the back of the glove box lamp and switch unit.
- Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to depress the retaining tabs on the top and bottom of the glove box lamp and switch housing.
- While holding the retaining tabs depressed, push the glove box lamp and switch unit out through the hole in the mounting bracket on the instrument panel glove box opening upper reinforcement.
- Remove the glove box lamp and switch unit from the instrument panel.
INSTALLATION
- Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to feed the instrument panel wire harness connectors out through the hole in the glove box lamp and switch housing mounting bracket.
- Position the glove box lamp and switch unit to the instrument panel.
- Reconnect the instrument panel wire harness connector to the connector receptacle on the back of the glove box lamp and switch unit.
- Push the glove box lamp and switch unit into the hole in the mounting bracket on the instrument panel glove box opening upper reinforcement.
- Install the glove box onto the instrument panel. (Refer to «GLOVE BOX»(/dodge/pickup-r1500/1997-2012/remont/gauges-instrument-panels/#instrument-panel) ) for the procedures.
- Close the glove box.
- Reconnect the battery negative cable.
The overhead console in this vehicle is equipped with two individual reading and courtesy lamps. The lamp lenses are the only visible components of these lamps. Each lamp has its own switch, bulb, reflector and lens within the overhead console.
The overhead console reading and courtesy lamps are controlled by the instrument cluster which provides power at all times, regardless of the ignition switch position. The ground circuit for the lamps is switched through the integral reading and courtesy lamp switches or through the door ajar switches. Each lamp is designed and aimed to provide illumination that will be directed only to that side of the vehicle on which the lamp is located.
The reading and courtesy lamp lenses and bulbs are available for service replacement. The reading and courtesy lamp switches, bulb holders and wiring are only available as part of the overhead console wire harness. If either of the lamp switches or bulb holders is faulty or damaged, the entire overhead console wire harness assembly must be replaced.
For service of the reading and courtesy lamp bulbs, refer to the appropriate wiring information.
All reading and courtesy lamps located in the overhead console are activated by the door ajar switches via the instrument cluster. When all of the doors are closed, these lamps can be individually activated by depressing the corresponding lens. When any door is open, depressing the lamp lenses to activate the lamp switches will not turn the lamps off.
The instrument cluster monitors the door ajar switches. When a door is open the instrument cluster grounds the low side drivers to turn on the lamps. Upon closing all doors, the instrument cluster initiates a 30 second timer. If any of the doors are opened during the "time out" cycle, the instrument cluster will reset the timer until all doors are closed. The instrument cluster will faid to off when the doors are closed and the ignition is turned ON, the time out expires or the power locks are activated.
Scheme 4
- Disconnect and isolate the battery negative cable.
- Insert a long, narrow, flat-bladed tool between the curved (outboard) edge of the reading and courtesy lamp lens and the overhead console housing (Scheme 4)
- Gently pry inward and downward against the lens until the latch tab in the center of the outboard edge of the reading and courtesy lamp lens is disengaged from the overhead console housing.
- Pull firmly on the lens toward the outboard side of the vehicle to disengage the two pivot tabs on the inboard edge of the reading and courtesy lamp lens are disengaged from the overhead console housing.
- Remove the reading and courtesy lamp lens from the overhead console housing.
- Position the reading and courtesy lamp lens onto the overhead console housing.
- Align the two pivot tabs on the inboard edge of the reading and courtesy lamp lens with the two pivot holes in the overhead console housing.
- Push firmly on the lens toward the inboard side of the vehicle to insert the two pivot tabs on the inboard edge of the reading and courtesy lamp lens into the two pivot holes in the overhead console housing.
- Pivot the lens back up into position and press upward firmly until the latch tab in the center of the outboard edge of the reading and courtesy lamp lens snaps back into the overhead console housing.
- Reconnect the battery negative cable.