Questions tagged [electronics]

Electrical components that monitor or control the engine and other vehicle systems, or that provide entertainment, information, or network access. Engine Control Units (ECUs), their sensors, radios, navigation systems, and rain sensors are examples of *electronic* components. Compare with *electrical* components which distribute, switch, and consume electricity as a source of power – such as the battery, alternator, fuses, lights, starter, and sparkplugs.

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623 views

1995 VM Jetta/Vento - ECU pinout for my car

I own a 95 Vento GL (Jetta for the american market), with an 1.8 8v, 90hp ADD model engine. The ECU for this model is marked with part number 037 906 021A. I have checked with VAG-COM software and it ...
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270 views

VSS accuracy at low speeds

Background I recently got a P1500 code on my 98 Mazda 626 GF. I hooked up my computer using ForScan and cleared the code. It didn't come back after three slow test drives around the parking lot. Here ...
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1answer
602 views

Is there a rev matching device?

I understand that rev matching is acquired skill by practicing and driving more. I'd like to know if there was a device you could attach to your car that would detect and notify you if engine rev is ...
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2k views

Disable the alarm on a 2001 Audi A6

I want to disable the alarm on a 2001 Audi A6 because its goes off arbitrarily, a lot. I want to disable the entire alarm. not just the internal movement sensor, How can I do this?
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64 views

Battery gets discharged…sometimes!

This is one of those intermittent issues driving mad any car driver: What I have: New battery, new alternator brushes, new current regulator, new belt. Polished brushes tracks. All properly ...
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0answers
484 views

What could have cause these scratches on my LCD?

I had to remove the anti-glare coating on my LCD (using plastic polisher) because the previous owner probably used ammoniac based cleaner on it. After removing it with Novus plastic polisher, I found ...
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0answers
766 views

X-Trail replacement remote key unlocking receiver

Has anyone got an idea of how fix a broken receiver for remote key unlocking on a 2007 nissan x-trail? both keys stopped working at exactly the same time - I've tried re-pairing (succesfully activated ...
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35 views

Missed a connector in my AC system?

I just changed the heater core in my 1999 Subaru Legacy Outback. I had to take the dash out, and disconnect many connectors. After putting it all back together, my heat now works (yay!), but my AC ...
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0answers
83 views

Blower resistor 2x3 connector replacement

I had an issue in a Citroën C4 2008 where the blower would work on settings 1-2-3 but not 4 (max). I took out the resistor and found this on the connector that plugs into the resistor: As can be seen,...
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0answers
45 views

Which Directed Electronics Module is This?

Isn’t water a wonderful thing? My '76 Corvette had a water leak in the windshield and the rain obliterated a module that was installed under the dash. I bought and installed it around 2012 or 2013. ...
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629 views

How to install bluetooth in a 05 Lexus ES330?

I’ve promised my girlfriend that for her birthday I will install a bluetooth system in her car like I have in mine. The day I got my car I simply had the head unit replaced with a new one with ...
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3k views

Smart ForFour power steering problem

The power steering of my 2005 Smart ForFour doesn't start immediately when I start the car. I first have to turn the wheel left and right a few times. Then I hear the soft click sound of a relay at ...
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9k views

How to calibrate / reset the MFD (touch screen) on 2007 Toyota Prius

I just bought a used 2007 Prius. Its MFD (touch screen) is miscalibrated such that I need to touch 1 or 2 centimeters above what I actually want to press. For on-screen menu options shown near the ...
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1answer
24 views

Volkswagen Polo 2009 bluetooth problem

I have a Volkswagen Polo from 2009 with some electronics I think are upgraded through the time. The display which shows the media radio and stuff also shows an option for phone, phone messages, and ...
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28 views

Climate Control Module Temp Numbers Jump Around

I have a 2003 Hummer H2 and if I wanted to change the temperature in my vehicle, I would do so by turning the knobs on the vehicle's climate control module. One of which is for the driver side while ...
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1answer
42 views

powered window and back windscreen wiper anomaly

At first i thought it was random, then i realised that there is clearly a pattern: I start the car then i check and both the wiper and the window works as expected. 20-30-40 minutes down the road i ...
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336 views

Ford Transit - ABS Pump no power

I have a 2.2 FWD Ford Transit from 2009. My ABS/ESP and the red brake warning is on as well. When reading the error codes I normally don't get any ABS related codes. But when erasing the error codes,...
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19 views

Nissan Primera P11-144: electro «control box»?

On my car, Nissan Primera P11-144, there is a couple of electrical malfunctions on secondary systems, namely on climate control and ceiling lighting: CC blows only hot air regardless of set ...
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15 views

S550 Mustangs - route wire from fuse panel to center console?

Are there any tip and tricks to routing wire from the passenger footwell fuse panel and into the center console? I'm looking to add an accessory that would require a power cord to pop out right below ...
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296 views

Will a magnet mount affect the performance of a radar detector?

I am in the market for a Uniden R3 radar detector but I'm not really enthused by most of the mirror mounts out there. It distracts from my line of sight to have something up on my mirror like that so ...
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18 views

Electronics Flicking on and off

so last week I pulled the rocker cover off my Celica 7th gen to get at the broken lift bolts (typical), also cleaned MAF sensor and throttle body while I was at it. After putting everything back ...
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409 views

2006 Honda Civic door locks won't work when key is off

We have a 2006 Honda Civic which has recently begun having an issue with the door locks. The power door locks will only work when the key is in the ON (II) position. If it's not in that position, then ...
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38 views

2000 Jeep Grand Cherokee Console not working

I am an owner of a 2000 Jeep Grand Cherokee. The roof console (the display attached to the center of the roof that normally displays compass direction and such) does not display anything. No idea what ...
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126 views

2005 Kia Amanti electronic systems turn on randomly without key in car

What would make my lights flash, radio come on, doors lock and unlock, seats move at random times day and night when you are not in car and key is not in ignition? Also my service engine light is ...
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183 views

Car stereo wiring for illumination

A friend gave me the Toyota PZ071 stereo head unit. He installed a different set in his car and the original head unit he gave to me. Unfortunately, the installer left the original connector harness ...
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26 views

FORD FIESTA 1.4 YEAR MODEL 2013

We vacuumed the car with a lighter-connected car vacuum cleaner- all of a sudden wipers and dash light went grazy- unplugged vacuum cleaner but now although dash lights come on- car wont start
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1answer
35 views

Do I need a battery maintainer, a portable jumpstarter, or a completely new 12V battery?

Hybrid vehicle has not been used for several months due to COVID-19 pandemic. Vehicle has a 3 year old 12V AGM battery. Battery is not used as a true "starter" battery; it just boots the ...
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34 views

How does engine braking mapping work?

Some recent cars and a lot of bikes can change engine mapping and change engine braking electronically. For instance, my bike is not an automatic bike, so it has mechanical gears and I am able to ...
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1answer
32 views

What type of terminal pins do radio harnesses use?

Brief backstory: I got a car that was a great deal and the radio is the only thing wrong with it. They told me that while they were swapping out the OEM radio it wouldn't accept the new one and then ...
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46 views

Alternator whine fix for aftermarket stereo

I bought a Dual MPR420 as a cheap replacement for my 22 year old Toyota Camry that I keep around as a utility car. I used the right Metra harness, spliced using heat shrink butt connectors and ...
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1answer
30 views

2012 nissan murano interior light won't go off

2012 nissan murano interior light doesn't go off after door is closed. It does go off after 15 min. as it says in the manual.
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30 views

What are my options to add Bluetooth connectivity to a 2007 Honda Civic FD4 (without FM Tx)?

2007 Honda Civic FD4 didn't come with Bluetooth support. I am aware of adding the Bluetooth connectivity through an FM transmitter to use the car audio setup, but I'm looking for a better way with ...
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28 views

Why there is ticking noise and turn indicator lights blinking in car while driving even if I'm not touching the lever?

I own a Tata motors Indica DLS V2. I've noticed that there is ticking noise (similar to the one produced during turn signal) and turn indicator lights blink while driving, even if I'm not even ...
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34 views

Car engine got wet through low water pass - any potential unseen damage?

Last night it was raining hard. There was a bridge that was flooded but I couldn't tell because the ruler marker sign was knocked down. As I approached it the car got deeper and deeper into water. ...
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53 views

What is this 5-pronged electrical outlet attached to the alternator used for?

I have the below hookup right next to the engine (CAT 3116) and I'm not sure what it is for. I tried googling this, but didn't find a hookup that was similar. The approximate circumference of the red ...
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2answers
65 views

Honda Civic 2000, Engine Control Unit replacement

I need to replace the engine control unit, ECU, of my Honda Civic 2000, my car doesn't have an immobilizer, it starts with a basic metal key, so, do I need to program the used ECU replacement?
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19 views

RX 300 (2001) doors lock/unlock problem

I have Lexus RX 300 (2001). 3 doors starts not responding to lock/unlock in most cases. But sometimes works. Only one rear and trunk doors works correctly. Also works correctly manually with keys....
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1answer
79 views

How do you quiz the electronics of a Mercedes?

I am planning to inspect a 2012 Mercedes S550 for possible purchase. How do I interrogate the electronic system of the car to get information about things that currently may not be working, or about ...
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42 views

2005 ford f150 5.4 triton

I have acquired through an auction a 2005 f150 FX4 with a triton 5.4 engine. It has sat indoors idle for about nine(9) years. Cab corners are the only body issue. Battery has gone dead at some unknown ...
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2answers
84 views

Is there a way to transmit a CAN bus signal over a high current DC line?

I would like to use a high current cable with batt + and chassis ground from the vehicle to the trailer, and also use the same cable to transmit a CAN bus signal to the trailer. Is there a way to get ...
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2answers
57 views

Installing electronics next to SRS Airbag controller in car

I have bought an add-on for my car stereo (GROM USB3) which adds USB and Bluetooth capability for playing music and answering calls. This module is contained in a little box with 4 ports, and connects ...
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150 views

Dashboard lights blinking wildly

Here's a video of my Subaru Forester dashboard. Temperature, cruise, skid control, maintenance lights are on randomly and blinking. I'm guessing all of these problems are related. What could be the ...
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0answers
627 views

Need service manual for Mahindra Scorpio CRDe 2006 model

I am trying to diagnose a problem with the ECU of my Mahindra Scorpio, I am looking for Fuses and Relays where it's being located, Specifically looking for schematics and wiring diagram of my car.. ...
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2k views

Radio intermittently drops out or looses settings (2009 Lexus ES350)

1) The radio in my 2009 Lexus ES350 periodically goes silent. This happens, typically, every fifteen minutes or so, and the silence lasts anywhere from a few seconds to several minutes. This happens ...