Repair Cut (Incomplete) Digit Car Odometer Display

Repair Cut (Incomplete) Digit Car Odometer Display

After received an input from a friend (Andre Lukmana), ODOmeter/TRIPmeter display shows incomplete digit is a common problem in Daihatsu Ceria car (alias: Daihatsu Mira, Daihatsu Cuerio, Perodua Kancil). He shared the repair method which is very simple. The cause of this common problem is only an intermittent LCD Display connection.

Tools and Materials Required:

•          Short Philips Screwdriver (+) (the longer one is not so useful here)
•          Wide slotted tip screwdriver (-)
•          A small sheet of paper, or a plastic tape, or anything as a shim.
•          Scissors
•          Cleaning mop/tissue (A good time to do cleaning while being dismantled  J )

Repair Steps:

1.       Open 2 screws underneath top hood of the instrument panel using short philips screwdriver.

2.       Pull the plastic hood of the panel (there are hooks on top, bottom, right and left side. Shake while pulling to release the hooks). If it is too difficult to be released, you can help by using thin plastic screwdriver/lever, thus the material will not be scratched.

3.       Open 1 front screw and 2 rear screws using short philips screwdriver.

4.       Open the instrument panel back cable connector by lifting/rotating the lock. Follow the direction as follows:

5.       Open the hooks surrounding front cover using wide slotted tip screwdriver. Take care not to break the hooks. Hooks location is indicated in orange circle:

6.       Pull the instrument pointer hand with straight motion upward. Any non straight motion could cause breaking J

7.       Open mica cover sheet

8.       Release 4 LCD Bracket Hooks with slotted tip screwdriver. If you can not successfully release it, unfortunately you have to dismantle back cover to release the hooks.

If you need to dismantle back cover::

• a.       Loosen 4 screws

• b.      Release the LCD bracket  hooks from back side(PCB side).Be careful not to damage the PCB and any electronic component on it  J  :]

9.       Put a small sheet of paper (a fold of 2 plies), or tape on top of LCD connection rubber, as a shim to secure the connection. It will avoid intermittent/cut character/shaking display.

10.   Close back LCD bracket hooks. Take note on “shim” position between LCD and the bracket: must be hidden to be neat.

11.   Finish… Close back everything you dismantled (if you forgot, just please scroll up… )

When you put back instrument pointer hand, stack at starting position at the left side (you can refer back to step no. 3 and 6 as reference).

12.   Perform testing by turning on the engine before screwing back to dashboard:

If you are satisfied, wipe all the dirts with tissue, a good oportunity while being dismantled J  ;]

And while being dismantled too, it is just a perfect occasion if you intend to replace the backlight bulbs with LED to beautify the look;] J (The bulbs are the blue things on above step no. 8. Turn it counter clock wise to open.)

Profil Ceria:

Baru kesampaian memiliki Daihat*u Ceria di 30 Juli 2017. Kondisi 2^nd murah-meriah, dengan beberapa PR yang perlu di-optimasi. Kesempatan untuk belajar bertahap, dan mencicil biaya perbaikan pelan-pelan, daripada kredit Mobil Baru melibatkan bank/leasing/rentenir = dosa riba :[   L Wallahu musta’an

Repair Car Lighter

Repair Car Lighter

Buying a used “old” car may have several drawbacks; some of them are aging parts. On electrical side, there is usually just a “simple” breakage on connection. Such as: loose connection, rusty/oxidation, or rotten cables (due to heat or humidity exposures).

Following tutorial is an example of malfunctioning car lighter repair. The impact of this malfunction is not functioning USB charger which is plugged into it.

 Tools and Materials Preparation:

•       Multimeter (Voltmeter and Ohmmeter)
•       Pliers
•       Cutter/file
•       Contact Cleaner or any anti rust spray (such as WD4o*)

Repair Step:

1. Measure voltage on (+) terminal and (-) of the lighter using voltmeter. Normal voltage shall be greater than 12V.

a.      If it is 0V, there must be loose wire or connection. Measure resistance between both terminals. Resistance must be 100K Ohms, or oL (no connection, there must be no short circuit). If there is short circuit, trace “wild connection” which causes the short, and break it. Change the Fuse after the wild connection has been broken.

b.      If it is less than 12V, there is usually an oxidation or rust at connecting terminal. The example on my case is only 9V which is insufficient to power up USB Charger.

    2. Unplug and measure the voltage at connector behind the lighter. If it is greater than 12V, meaning the voltage up to the connector is good. The damage location is at the lighter after the connector.

         3.       Remove cover panel of the lighter by pulling it straight forward: 

    4. Measure the terminal connection resistance:

            a. Measure terminal connector (-) to the body of the lighter using Ohmmeter. The resistance must .

               be less than 3 Ohms. 

           b. Measure terminal connector (+) to centre screw (terminal) of the lighter using Ohmmeter. The 

                 resistance must be less than 3 Ohms.

             c.  If terminal resistance above is high, meaning there “damage” is at the terminal. The example on my case is the resistance between terminal (+) to the centre screw intermittently varies between 17 to 150 Ohms. This means there is bad connection.

             d.  Trace every connection using Ohmmeter, where is the location of the problematic resistance:

      5.      After the problematic resistance location is found, repair the connection at the place as following: open the crimping, scratch the metal contact surface using cutter or file from rust/oxidation.

      6.      Fasten it back using pliers.

     7.      Spray Contact Cleaner/anti rust WD4* to prevent the rust growing back. Do not wipe off.

     8.      Re-measure the resistance at the ex-problematic location to ensure it is already less than 3 Ohms.

     9.      Measure the resistance between (+) and (-) too. There must be no short circuit (the resistance must be above 100 Kilo Ohms, or oL (no connection)).

     10.      Install back, check the function:

Profil Ceria:
Baru kesampaian memiliki Ceria di 30 Juli 2017. Kondisi 2nd murah-meriah, dengan beberapa PR yang perlu di-optimasi. Kesempatan untuk belajar bertahap, dan mencicil biaya perbaikan pelan-pelan, daripada kredit Mobil Baru melibatkan bank/leasing/rentenir = dosa riba :[  

Wallahu musta’an