Mitsubishi Pajero Fieldmaster (Gen 2.5) [continued]

[acertan]

Kayang i-connect yan, but you have to check kung paano nakaconnect yang mga wires baka ma-interchange eh. Hanap ka lang ng comparison, ma-identify mo na color connection niyan.The only problem is how to check if its still working

yun nga bro, as for the suggestion pati nadin sa youtube na try ko na din i tester yung harness nya mismo walang kuryente na lumalabas kahapon tinestdrive ko ok naman ang shifting nya im not sure sa nlex if around 100km/h eh kung stable siya sa 2,800rpm/3000rpm.

[acertan]

Kung A/T Paj mo me ECU yan. Infact dalawa nga 1 for the Super Select 4wd and the other A/T Ecu which I suspect is connected to the TPS. Why dont you give Joseph Atutubo a call? para mas ma enlighten tyo... Malay mo meron sya nyan di ba?

Or like what zix888 said, try mo din pa extract yung wire from the housing...

Yung mga sabi nila is comparable or less sa thermostat function or absence thereof... just theory..

anu number ni j atutubo tska san pla place niya?

thanks

[Ry_Tower]

09178405942 po.

anu number ni j atutubo tska san pla place niya?

thanks

[alrorskyz]

It might just be a loose connection. Just bring it to your trusted autoshop with a good electrician.

two electrical shops already tried troubleshooting this problem but still wasn't able fix. one shop told me to just replace to manual switch but i really like the climate control type. anyway guys, thank you.

[junerski]

anu number ni j atutubo tska san pla place niya?

thanks

09178405942
taga-multinational sa paranaque siya.
di ko lang sigurado ano exact address. give him a call na lang.

[acertan]

09178405942 po.

09178405942
taga-multinational sa paranaque siya.
di ko lang sigurado ano exact address. give him a call na lang.

thanks mga bro ill try to contact him

[silver V]

Sirs good day.has anybody experienced continous blinking on the 4x4 indicator even if not engaged?thanks

[Ry_Tower]

Sirs good day.has anybody experienced continous blinking on the 4x4 indicator even if not engaged?thanks

Read here sir.

4x4Wire's TrailTalk Forums: Borrowed HOW TO: Flashing ActiveTrac 4WD indicator light fix

[testament11]

Sirs good day.has anybody experienced continous blinking on the 4x4 indicator even if not engaged?thanks

I have and currently experiencing it after 4 years nung ma-solve ko ang problem.

I don't know kung may naka-experience nito. I have no blinking lights, pero there will be a time na nagpupumilit siyang mag-engage to 4wd mode. Once na magpupumilit siya, parang turboprop na eroplano ang tunog ng sasakyan. Then pag nag-full stop ka na, blinking lights will start. Remedyo ko, spray yun dalawang actuators ng 4wd, using electrical contact cleaner. Pero, andun pa rin ang problema. Mukhang kelangan kong silipin na ito sa ilalim, baka may hindi na tama.

[Ry_Tower]

I have and currently experiencing it after 4 years nung ma-solve ko ang problem.

I don't know kung may naka-experience nito. I have no blinking lights, pero there will be a time na nagpupumilit siyang mag-engage to 4wd mode. Once na magpupumilit siya, parang turboprop na eroplano ang tunog ng sasakyan. Then pag nag-full stop ka na, blinking lights will start. Remedyo ko, spray yun dalawang actuators ng 4wd, using electrical contact cleaner. Pero, andun pa rin ang problema. Mukhang kelangan kong silipin na ito sa ilalim, baka may hindi na tama.

oo nga baka sa iba na problem. Sa mga hose na vacuum sir puwede doon din problem. I think makikita mo naman yan kapag inisa-isa na.

[silver V]

Thanks for the link sir Ry_Tower,dami palang dapat i check hehe hassle.hanap muna ng gagawa.thanks sir

[silver V]

Sir testament11 kakaibang problema din yan.try ko din po silipin at linisin ang actuators baka nga ganun din ang sira nito sir.thanks

[blue_gambit]

Sirs good day.has anybody experienced continous blinking on the 4x4 indicator even if not engaged?thanks

It usually happens pag quick start pag di ako nag heater, pero very rare... One thing na observe is pag hindi maganda yung pag swith from 4H to 2 H... kapag switch ka, dapat itakbo mo pa ng ilang meters straight line yung front tires para properly disengaged ang front diff... and vice versa

[Blackspeed]

Sirs, tama po ba na dalawa ang pitman arm ng suspension natin?

[silver V]

Thanks sir blue_gambit.try ko din sir pero nagsawa nako kaka switch di mawala wala sir hehe parang meron talaga linisin na actuator hehe.tagal na niyang blinking tingin ko naman di sya naka engage hehe sana walang madamay or di masama.thanks sir

[junerski]

taken from PPAC website

Many Pajero's (including Montero / Shogun variants) owners at one time or another face the dreaded 4x4 Super Select flashing light problem. It only takes a small amount of crud in the wrong place to upset the system so it pays to acquaint yourself with it if you want to fix it yourself. (I understand that Super select is known as Active Trak in some models/countries).

Flashing super select 4wd lights most often occur when the front differential automatic disconnect is not engaging /disengaging when you select/deselect 4x4 drive. Causes are:

- front differential sensor switch is damaged or faulty
- actuator rod/shaft jammed / seized (perhaps sand/mud/dirt)
- vacuum lines leak/popped off fittings
- vacuum solenoid valves (x2) either maybe faulty
- electrical wiring connection issue (ecu/solenoids/switch)
- combination of the above

From the Montero / Pajero / Shogun forums, it is clear that another common problem is flashing lights after repair work, for example after installing a new gearbox, or even a new radio.

How it works
It helps troubleshooting if you understand how the system should work. Pajero's have a four wheel drive system that allows the driver to engage 2 or 4wd, The rear differential is always driven, selecting 4wd engages the front differential free wheel, using a vacuum powered system.

The transfer gearbox (4wd) is mechanical (1998 GDI 3.5) so the selected gear is just that. Whatever the position of the transfer gearbox sticks that is the gear you are in, it is a mechanical function.

The status of the system is indicated on the drivers console i.e. super select panel, however most often, problems occur causing flashing lights, because there is a discrepancy between engaging/disengaging mechanism on the front differential and the transfer gearbox (t-case) gearstick position.

[junerski]

Lights
At ignition, in 2wd, the bottom pair of green lights is lit and stay lit constantly, because these lights are lit constantly, failure usually means a blown bulb(s).

The top pair of green lights flashes briefly at startup but that is just an ECU start up check. If 4wd is properly selected and all the sensors are playing nicely, all four green lights are lit, and should not be flashing.

The main components of the system we need to look at are:

- super select light display
- Front differential
- Actuator
- Actuator shaft (and boot)
- Position sensor (the manual calls it the Free wheel engage switch)
- Vacuum control solenoid valves (x2)
- Vacuum piping (rubber and steel tubing)
- Vacuum tank (accumulator)
- 4WD ECU (electronic control unit)
- centre differential
- transfer gearbox

Troubleshooting
Most often the flashing light problem is an easy fix, primarily it happens because the 4wd system has not been regularly used. The 4wd must to be used regularly and exercised to keep it in good working order.

Assuming it's an Mk 1/2, the green lights are flashing because the system thinks that the front axle freewheel unit is still engaged and is trying to disengage it (or vice versa).

The system is operated via vacuum created by running engine (for petrol models) and is controlled by switches and electric solenoid valves-solenoid valves on the bulkhead in front of the driver typically near the master cylinder. In turn they are connecting to the actuator on the front axle by a mixture of steel and rubber piping. Once engaged (or disengaged) the position is verified by the free wheel sensor switch.

Fixing
This list should help you track down and the problem fault. Sometimes something simple, such as reversing a few metres helps disengagement with wheels straight helps too. If reversing doesn’t solve the problem you probably have a problem that needs further investigation.


Basics
Check your fluids. Check the transfer box oil and front differential oil levels. Remove the top filler plug; both should be filled to the level of the bottom of the fill hole.

Any foul/burnt smell gritty texture indicates the oil is spent and an oil change is needed. Identify the correct oil from your manual. It is a good idea to change the fill and plug washers at the same time. On mine, when the diff gets hot oil leaks from the fill plug (another thing to add to my things to do list).

Tyres
Double check that all your tyres are the exactly same size and equal pressures. Slightly different tyre size / uneven wear may prevent correct engagement/disengagement.

Vacuum Solenoid Valves
A solenoid valve is a fancy term for an electrically controlled valve, in this case controlling vacuum to the Front differential actuator. On RHD drive models, the vacuum control solenoids are mounted near the top of the inner wheel tub, near the master cylinder. Vacuum is needed both to open, and close the actuator. Each typically identified with a blob of paint, yellow and blue

Electronic signals from the transfer box, to the gearbox ECU govern the operation of solenoids that control the vacuum feed to open and close the actuator located on the front differential.

The vacuum line with yellow strip, just visible in picture, connects to the solenoid with yellow paint blob, and in turn connects to front differential actuator. Same with the blue striped hose connecting to the solenoid with the blue blob of paint.

- Check that both solenoids are not sticking and operate correctly.
- Check the electrical resistance, should be approx. 39/45 ohms (Haynes states 45 ohms)
- Check the harness connection, apply electrical contact cleaner to clean connectors

Mounted on the cross member, near the front differential is a vacuum storage vessel, or accumulator. It is about the size of a tin of baked beans. Worth checking for leaks, rust, lose connections, etc.

If you are greeted with flashing lights upon start up the vacuum accumulator (can) is unable to hold a vacuum, leaking or damage. Repair or replace. Also check that the vacuum line non-return valve is not leaking, causing accumulator to leak into the plenum overnight.

[junerski]

Vacuum Piping
The vacuum piping comprises a combination of steel tube and rubber hoses basically routed from the engine through the solenoid valves to the actuator. The piping might be leaking, disconnected or perished. Also it is easy to miss reconnecting if you have just done other work in that area (been there done that!). The non-return valve may also be faulty.

You need to make sure that all the vacuum piping and hoses, and all connections are good. And don't forget without a hand vacuum pump the engine needs to be running to create the vacuum.

To help trace any leakage:

- Inspect the piping- it might be damaged, leaking, spilt, cut, missing or perished.

- Temporary swap over the vacuum hoses (yellow and blue stripe outlet from solenoid valves) if lights stop flashing, the fault is either yellow stripe or blue stripe tubing. Replace hoses to original position and track pipe leakage. A hand vacuum pump is really handy since a vacuum leak can be difficult to identify.

- Test for continuity/blockage of piping. Use a hand vacuum pump if available or alternately blow through disconnected pipe with helper underneath.

If you identify a leak or disconnected pipe just reconnecting may not be sufficient to solve the problem since dust and dirt will have been sucked into the solenoid.

Centre Differential - Orange flashing light
The transfer box (t-case) houses the centre differential, permitting drive to both front and rear wheels. On the super select panel it is represented as the central orange colour lamp, it is labeled "C/D Lock"
If you have the orange flashing light it is most probably an electrical issue with the centre differential detent switches on the transfer gear box (t/case), possibly a broken wire or fouled switch, could also be a poor connection due to mud/etc. There are five centre differential detent switches on the t/case for checking and inspection.

Vacuum Tank
If your lights flash furiously even before firing up your engine, it most likely a problem with the vacuum accumulator or the non-return valve (refer to piping). The accumulator is a small vacuum tank, to "store" or retain vacuum, it looks like a small tin can, about the size of a can of baked beans (the universal size gauge) and it is located just behind the front differential with vacuum pipe connection.

Check the connection is secure, and tank itself is undamaged. Use hand vacuum pump if available to test for leakage.

On older models check for rust, if you are sure the tank is intact, perhaps add a coat of hammerite paint or equal. DONT paint or use any solvents until you are sure the can is sound, otherwise any weakness would allow contamination to be sucked into the vacuum system.


Transfer Gear box (t-case)
The wiring from the switches on the top of the transfer gearbox can perish/harden over time and have a tendency to break. Treat them with care! Check for wiring for clean connections, continuity and possible short circuit. Where possible clean connectors with electrical contact cleaner or equal.



4WD ECU
Very rarely the 4WD Electronic Control Unit (ECU) located behind the dash is faulty. I'd re-check all above first, and try to swap with a known, working ECU to confirm the ECU fault before replacement

[Ry_Tower]

^ Yan na nga yung a 4x4 autrlia na post. Tama si BG, sa iba, kelangan pa onti movement para sa disengage. Pero kapag matagal talaga, may issue na yan.

[silver V]

Sirs try ko din po mag reverse ng mahaba haba na tuwid.thanks!