"Car without Tacho is like underwear without elastic for a petrolhead" - The D.I.Y. Devil
Been hunting for ages for a cheap good quality tacho for Hell's Angel, all quotes were north of 3.5k, so the search continued until Maruti launched Ritz/A-Star with Pod tacho. Inquired Maruti about that only to end up mail forwards to Maruti dealer and wash off by Customer Care.
And one fine day our own Varun posted his installs and inspired me to give a try. He had one spare and bought it from him. The entire story starts here. Very much thankful to him
I hope this will help all Maruti boys like me badly wanting to install tacho in their beasts. Wiring and all same for Alto/Wagon R (and maybe for 800s). For tacho price and details refer Varun's other thread.
Never get confused with the ECU. Searched for ECU diagram for this specific one, but failed. Wiring detail for Estilo was not availabel anywhere. No SVC, customer care or neighborhood mod shop guy unwilling to lend a hand, reached dead end and never thought of fitting this.
After sleeping with the tacho for exactly a month, lost patience and decided to fight out the ECU. After a search found ECU is similar to Baleno (series), but again let down was every other Maruti had 3 connectors while Estilo got 4 connectors #Fish#.
Then compared all Maruti/Suzuki workshop manuals and found out tacho signal is Brown for all Maruti models. In the end found Speedo console connector was same as Alto's (which I found long back even before started thinking about the tacho
). Philosophy over, let's start.
The ECU (lies just behind glove box). No need to mess/worry about it. Leave it alone.
The A-Star tacho (from Varun)
Tacho working for the first time, giving hope.
Redlined (not only tacho's first time, also the Angel's)
Sequence (front frame (insert screw driver from below, can deform the frame leaving it ugly)>>glass and other frames>>pluck the needle (careful)>>dial>>remove the leg/base (2 screws)>>remove 2 screws behind dial>>cup and circuit board comes out)
Feeble yellow backlit.
Custom red test.
SMDs stripped out from LED strip, connected directly to tacho positive and negative, eliminating separate backlit connections.
legs and clips hinders flat fit.
Cut and clean.
Check for the perfect place. Take into account minimal blind spots, no hindrance in cleaning dash, pillars, glass, etc.
All ready to fit. Used tired and tested foam tapes.
Connections - Red - To ACC positive, Black - Negative, Yellow with white stripes - Tacho signal, Yellow with blue stripe - Bakclit.