The dead battery is most likely why the vehicle isn't unlocking. No power to the motors that work the door release. Does the key turn at all in the key slot? Most people only use the remote for locking so the mechanical part of the key slot gums up and stops working with lack of use. Try spraying inside the key slot with a releasing oil like WD40, leave it to soak in and try turning the key again. you might need to do this a few times.
Does the trunk have a key slot? Try that as well then you can simply climb over into the front of the van.
See if there are small holes on each side of the radio. If there is slip a paper clip in each one to release the clasps and pull out. Or take it to best buy, they'll fix you up. Did my f35
If it had to be charged, it probably has a leak. Check low side pressure. If low, repair leak and recharge. If pressure is good, please get back to us for next troubleshooting step.
follow and check these parts. put everything back as it was before, except the battery.
you may need to use a meter or a live tester bulb. check that voltage is connecting to the relevant connections.
The PCM detects that the MAP sensor voltage is more than 4.3 volts for 3 seconds.
This DTC may set due to poor idle characteristics. A possible cause may be uncontrolled fueling due to an open or high resistance in the HO2S 1 low signal circuit. Before replacing any component, ensure that this condition does not exist.
2
Turn ON the ignition, with the engine OFF.
Monitor the DTC information with the scan tool.
Is DTC P0641 also set?
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YES - Go to Diagnostic Trouble Code (DTC) List - Vehicle
NO - Go to Step 3
3
Observe the throttle position (TP) sensor parameter with the scan tool.
Press the accelerator pedal slowly until the throttle is in the wide open position.
Release the accelerator pedal slowly until the throttle is returned to the closed position.
Repeat this procedure several times.
Does the TP sensor parameter increase steadily to more than the first specified value, and then decrease steadily returning to less than the second specified value?
98%
1%
YES - Go to Step 4
NO _ Go to DTC P0121
4
Start the engine.
Observe the MAP sensor parameter with a scan tool.
Is the voltage more than the specified value?
4.3 V
YES - Go to Step 6
NO - Go to Step 5
I've had vibrations - was the tires - belts shifted - look for bulges or uneven wear.
Could be bearings or steering components (tie rods; ball joints; etc).
Could be a broken tie rod end or even something simple like a lost wheel weight. Look and see if one or more of the wheels has a mark where a wheel weight was and is now missing or just take vehicle to shop for tire balance and rotation.
It may just need an oil flush and filter change, yes. It could also be the oil pressure relief valve that is sticking.It may even be the oil pressure transmitter switch that is faulty (not a big job to replace..). However, try a filter and oil change first. Before the old oil is drained from the engine, try adding an oil sludge clearance additive. Link below will show you what it looks like. oil flush Google Search If the oil pressure relieve valve is sticking, the additive-flush may unstick it, before you fill with fresh oil. Use a quality oil - not a cheap brand To put things into context, as oil breaks down with miles and age it becomes less 'pumpable' around the engine. If there was something wrong with your engine in the crankcase area you would probably begin to hear knocks and rumbles as the bearings break down. You haven't mentioned any noises.. I don't think you have much to worry about. The first thing you do is flush the oil system using an additive and then refill with fresh oil and a filter. You can also add an 'oil booster' additive if you wish: oil booster Google Search
you may need to use a meter or a live tester bulb. check that voltage is connecting to the relevant connections.
