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Rear power window switch box LED install

 
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Old 10 Oct 2016, 03:28 am
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Default Rear power window switch box LED install

Following on from the LED install in the front power window switch box....
Front power window switch box LED install

....let's move onto the back!

Note: As @sanatanadharma and @handy_cruiser point out, not all of the PTC models came with switches that could be lit up. I'm unsure whether the panel lamps driver voltage is present in those vehicle's looms or not also, however if it is then it might be feasible to swap out the switches themselves to "enabled" the lighting option.

Note 2: This install will also require modification of the wiring loom to add in a series current-limiting resistor to the wires corresponding to pin 6 ("panel lamp driver") of each switch header. As it is set up (correct me if I'm wrong) the existing LED is internally current-limited. Yours may not be. Refer to the calculations below in selecting an appropriate resistor for your chosen LED.

The box is removed similarly to the front one. A plastic spudger or other non-metal item wedged behind the top edge pops her out. The two connectors are easy to pull off and are only retained by the plastic clip.

So we have this:




Like the front box, this is a fascia clipped to a black plastic rear shell. We need to remove the fascia before getting to the switches....

Start with the small tabs. Apply parting pressure with the forefinger and gently prise up the edge until the tab clicks underneath slightly. Do the same to the lower tab and finally to the top tab again if it doesn't open.






Next we do the same to the larger clipped tabs:






....and then we can part the two....

__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens

Last edited by Prostheta; 10 Oct 2016 at 04:23 am.
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Old 10 Oct 2016, 03:32 am
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Default Re: Rear power window switch box LED install

The switches themselves are two identical (save for colour) switches clipped into the rear housing. These clips are easily opened and both switches can be removed.






....this is where an old sock and denatured alcohol are your friend to disinfect years of grime and detritus....
__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens
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Old 10 Oct 2016, 03:45 am
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Default Re: Rear power window switch box LED install

Each switch looks like this. A switch cap, a top cover and the rear assembly.




First, remove the cap gently by prying from underneath with a flat tool.






Revealing the LED! Note the two protruding actuators for the switch. These are loose and will fall out in the next steps if you allow them to....don't! They'll happily find the darkest dustiest corner of forever to hide from you. This is not an option.

__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens
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Old 10 Oct 2016, 03:50 am
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Default Re: Rear power window switch box LED install

These tabs can be pretty tricky to separate without using excessive force, so work your way between them and give it a bit of patience. Once free, DO NOT part the shell.






Part the two halves with the LED facing downwards. That is, keep the blade connectors facing upwards otherwise the two actuators will fall out.




A bit of sense.




So this is what we're looking at. A green 12v current-limited 3mm LED soldered between a pair of hooked contacts.



__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens
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Old 10 Oct 2016, 04:19 am
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Default Re: Rear power window switch box LED install

Remove the existing LED, and with desoldering wick, as much of the solder as possible. I hate other people's solder....




With a continuity meter, confirm which is the positive side (anode) and which is the negative-going (cathode). Pin 6 is positive ("panel lamp driver bus" anyway) and pin 7 is ground.




Take your LED, and using the old LED as a height guide, preform your leads to 90°. I'm using rectangular blue LEDs as these were used for the front switch box. Nothing like consistency!




Solder it in the correct way around (internally, the anode is the smaller structure within the LED with the longer of the two leads).




Clip the leads back neatly.




Get reassembling!

__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens

Last edited by Prostheta; 10 Oct 2016 at 04:24 am.
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Old 10 Oct 2016, 11:49 pm
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Default Re: Rear power window switch box LED install

TEMPORARY NOTICE

If you've made it this far, DO NOT re-install the box as-is. From what I can figure, the panel lamps driver bus will straight out blow the LEDs since we don't have current limiting resistors in line right now. I'm operating on minimal at the moment thanks to a bout of pneumonia, so please forgive me if I don't want to go outside in -2°C temps to carry out and photo the process.

I'll try and get it done this week, deathly illness permitting.
__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens
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Old 15 Oct 2016, 09:57 am
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Default Re: Rear power window switch box LED install

Okay, so I dragged myself out with a soldering iron plus intentions.

These are the connectors. Pins 5 and 6 (ground and panel lamps driver respectively) are on the flat side in the middle. Here, 6 is on the left (second along) and 5 is on the right (third along). Verify with a DVM using the stalk dimmer, remembering to disengage the front lockout of course!




Better view. Yellow is pin 6 (panel lamps driver) and black is ground. We'll be inserting a 390Ohm resistor in series on the yellow cable.




Trimming back that awful sticky fabric tape gives you better access. Clip the wire (disconnect the battery of course before electrical work....) and remove about an inch of cable. Strip a 1/4" of insulation. This should be enough so that the resistor can sit in line straight.




After soldering the cable end (so that I can slip some heatshrink over and up out of the way) complete the second.




Shrink 'er back!




Looking good....




....and we have a winner! Bright deep blue. The camera doesn't quite capture the colour correctly, however it's definitely a blue and not a cyan....

__________________
2001 2.0l PT Cruiser Touring Edition
Mods: New gear knob, blue LED re-lighting, token chrome bits.
215'000km (55.9% distance to the moon, 71.7% of a second at light speed, Usain Bolt running for 200 days)

"People demand freedom of speech as a compensation for the freedom of thought which they seldom use" - Søren Kierkegaard
"What can be asserted without evidence can be dismissed without evidence" - Christopher Hitchens
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