Toyota Quantum - Popular Questions, Answers, Tips & Manuals

The key there is what is the engine light telling you. Connect a scan tool and read the code. The code tells the problem and the fix. My guess is a sensor not connected properly (ECT)? Videos https://www.google.com/search?q=2014+Toyota+Quantum+2.5+diesel.+The+fan+turns+non+stop ..

Question edited for clarity and spelling. Question moved to model category. Some ideas in the link. A Pro Grade scan tool computer could record what happens when it warms up. https://www.google.com/search?q=2014+Toyota+Quantum+2.5+diesel.+loses+power+when+the+engine+is+hot ..

It seems like you have already checked most of the common causes of a non-starting engine. However, there are still a few things you can try: Check the fuel system: Make sure that the fuel pump is working properly and that there is fuel in the tank. You can also check the fuel filter to see if it's clogged. Check the battery: Even though you have two batteries, it's possible that one or both of them are not providing enough power to start the engine. You can have the batteries tested to make sure they are in good condition. Check the glow plugs: If the glow plugs are not working properly, it can cause the engine to have trouble starting. You can have the glow plugs tested to see if they are functioning correctly. Check the compression: If the engine has low compression, it can cause it to have trouble starting. You can have the compression tested to see if it's within the manufacturer's specifications. If none of these suggestions work, it might be best to take your vehicle to a certified mechanic who can diagnose the issue more accurately.

Never good and you probably need a transmission specialist. Hopefully it is just electronics. https://www.google.com/search?q=Toyota+Quantum+only+engages+4th+gear ..

no year car told. guess 2006 wild. turns signals dead all 4 corners,? hazard switch same, 4 dead lamps ? no country told THIS? In South Africa, the vehicle continued to be produced and was sold alongside the H200 Toyota Quantum (introduced in 2005) until the end of 2007 when a Taxi variant of the Quantum was introduced first we check fuses. for blown, all. then we scan the DLC port for DTC error codes. also buy the service manual to see wiring and do tests to find cause. our cars here, USA that year are BCM run totally , no flasher at all flashing became pure software in the BCM. body brain box. bbb.

need to check fuse --relay--switch and motor

It's just beside the block engine

Because there are many systems that control the engine, there are many reasons that the engine could stall. To narrow the cause you should use a scanner and see what code are stored in the computer. It could be as simple of a loose connector on a sensor or a relay that heats up and stops working.

NEED TO CHECK FUEL PRESSURE...COULD BE A BAD PRESSURE REGULATOR

As it is a common rail diesel system, it is difficult to diagnose many problems without the help of specialist equipment. As you have proved the engine will readily start using an ether spray it suggests the injectors could have bad spray patterns and the glow plugs aren't working as they should. It is also possible the cylinder compression pressure is low. It is worth knowing the electronic management system won't allow injection to begin until the required fuel pressure has been reached in the expected time. The high pressure fuel pump is highly stressed and can be subject to a high rate of wear. This can only be diagnosed with specialist equipment but it is worth checking the fuel lines, replacing the fuel filter and fitting a hand primer if it doesn't already have one.

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you can get guide from many sites.. i know few error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassembly, complete refurbish, repair, installation every single thing is covered

They should be in this link. http://www.championbrands.com/aera-torquespecs.pdf

It will need to go on a scan tool to clear the error and reset it.

Usually always under the dash..... Listen for a click when you turn the indicator on and follow the sound

Look for vacuum leaks. bank one. Check wiring for the MAF sensor. 2015, isn't this under warranty?

When did you change our fuel filter last? How is your fuel pressure?

Let a pro do it.

10 years old. When was it last serviced appropriate to the mileage?

Haynes Manual at auto zone or any part store.