Question about XO Vision Car Audio & Video
Autodim function for screen operates correctly, but the dimmer control for the dash lighting does not affect the unit lighting, so the lights remain bright.
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Posted on Jan 02, 2017
SOURCE: Illumination v. Dimmer
The illum wire goes directly to the headlight switch and tells it when to light up, where as the dimmer wire is variable meaning it would dim up or down with your dash light control. Dimmmer is usually only need on factory radio's and not aftermarket. I suggest wiring only to the illuum lead and do not connect dim. Also about the clock make sure your red and yellow wires are not crossed, yellow is a constant hot and red is only hot when the ignition is on, so if they are backwards the radio would loose it's memory when you turn the key off.
Hope this helps
Posted on Mar 12, 2008
SOURCE: I just installed a Clarion
illumination wire does not need to be installed on this model. depending on your car, it may use odd voltage for the dash lights. Clip and tape off the illumination wire going to the harness.
Posted on Dec 26, 2008
havent a clue without looking at it but this is one of them things best left alone as i have had similar before where it runs through radio,including the alarm and the factory immobiliser cut in.just loop from another circuit to make the lights work
Posted on Jan 31, 2009
SOURCE: Dim Mode
Make sure the orange wire with white stripe is connected to your dash illumination/parking lamp circuit. There should be a tag on it that says 'ILLUM' (unless the installer clipped it). That should dim the display whenever your lights are on.
If that doesn't do it enough I think your going to have to dial down the brighness - and that will do it for all functions.
Posted on Feb 20, 2009
Tips for a great answer:
Mar 13, 2017 | 2002 Buick LeSabre
Sep 17, 2015 | Jeep Cars & Trucks
The IPC receives a class 2 message requesting illumination from the DIM.
There is a powertrain related code present.
The IPC receives a class 2 message requesting illumination from the PCM. Dash Integration Module (DIM)
The various DIM input and output circuits are described in the corresponding functional areas as indicated on the DIM electrical schematics.
The DIM functions include the following:
Class 2 communication requiring DIM interaction.
Control of exterior lamps.
Control of front fog lights.
Control of the headlights.
Headlamps on with wiper input.
Hood ajar switch input w/export.
Horn relay control.
Interior lamps incandescent dimming.
Low side temperature for HVAC compressor.
Power moding control over Class 2 serial data circuit.
Reverse lockout solenoid control.
Steering wheel controls input.
Storage of the clock settings and, sending a message out on the class 2 serial data circuit in response to requests from other modules.
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle the PMM is the DIM. The PMM receives 4 signals from the ignition switch.
To determine the correct power mode the PMM uses the following circuits:
Ignition 1 voltage
Ignition 3 voltage
Your having a module problem , need to have it checked for DTC'S . Dealer only one for that !
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