20 Most Recent 1999 Mitsubishi Diamante Questions & Answers

i had a similar problem, i noticed it only went off when i locked the car with the key. use the key to unlock the car, now only lock the car from buttons inside and not with the key.

your diamente, has split rear folding seats, however I can't remember how it operates, I believe the release is on the seat inside the car. you can gain access to the truck this way and there is an emergency trunk release (red handle) inside the trunk.. you can use this to open the trunk.. after you open it check all you mounting hardware for loose bolts or damaged hinges, it sounds as if it has shifted and the latch although is functioning it cannot release the trunk or the mechanism itself is not fully operating

Hi!

Try resetting the radio first. If it still doesn't help then try this--

1. Take out the front panel off that surrounds the radio and temperature buttons, it will snap straight out.
2. Get the serial number off the radio. It is on a sticker on the top, left side.
3. Call Mitsubishi with the serial number. They will ask for proof of ownership, so have the title ready.
4. Input the 4 digit code and enter it by pressing cd button.
5. Also, try to find it written in the owners manual on the back pages.

Please rate this solution.

Thanks
Rylee

The lock actuator is a soliniod but sounds like your door latch is stuck or rusted on the inside you can try some wd40 inside the latch might help. also check that the child safety switch in the door is not in a middle position it's located on the door latch.

Your 1999 Mitsubishi Diamante is a 3.5L MFI SOHC 6cyl engine. MFI = multi-port fuel injection SOHC = single overhead camshaft This answer covers Mitsubishi Diamante1.8L, 2.4L, 3.0L (SOHC and DOHC), 3.5L, and 1997-2000 1.5L Engines. 2.4L engine shown, others similar. Fig.1 - CKP position and its two mounting bolts In Fig. 1, the two arrows point to the CKP (crankshaft position sensor) mounting bolts to remove. 2.4L engine shown. Fig.2 - CKP reluctor removal Remove the sensor and slide the reluctor wheel off of the crankshaft-2.4L engine shown. 1. Disconnect the negative battery cable. 2. Remove the timing belt. 3. Unplug the sensor connector. 4. Unfasten the two retaining bolts, then remove the CKP sensor from the vehicle. 5. Installation is the reverse of the removal procedure. Reference: Autozone online repair guide: Mitsubishi Galant/Mirage/Diamante 1990-2000, at www.autozone.com Fig.3 - photo - new 99Diamante CKP, a Wells part #SU4313

run the fault codes check that the cam shaft is turning (broken timing belt) check immobiliser for correct operation---flat fob battery

Can you check for power to the coil itself ?

Hi, fuse should be under the dash. There is a fuse box just above kick panel next to steering wheel. The other fue box is in the engine bay next to battery. Good Luck. Remember use same size fuse as replaced.

either look in glove box or trunk for the code on a label or take the car to the dealer.

The two are unrelated. A knock sensor code can mean the timing is off. Can also be caused by the ECU running lean, sometimes because of a O2 sensor. May be a dirty air filter. Can also be caused by bad gas or the wrong octane grade, or the cam belt has slipped. There's usually other error codes as well. The effect is poor gas milage, lack of power. It MIGHT cause other engine problems. Have all the above checked. The blower motor failure is usually the switch in the dash. A common fault is that only some or one speed works.

If you have the turbocharger pushing too much air into the engine, you'll run the chance of a piston, piston rod or crank shaft fail. This will cause catastrophic internal damage to your engine. The knock sensor tells the computer this and then adjusts the engine to prevent it.

Bad ignition switch or bad ground to the battery.