Check ride control on dash car does not rise. some tines it rises sometimes it don't, vdm wiring diag. don't match mitchell

Have to restart what ? Vehicle ? Did you have the system check for code's ?
The four wheel air suspension system is comprised of the following components:

• Service switch
• Control module
• Two front height sensors
• One rear height sensor
• Compressor and drier assembly (includes vent solenoid)
• Air lines
• Front and rear air spring and shock absorber assemblies
• Four air spring solenoids
• Compressor relay
• Vehicle Dynamic Module (VDM) Diagnostic Trouble Code (DTC) Index NOTE: Repair all other DTCs before C1725 and C1726. Repair DTCs C1990 and C1991 last. DTCs Description Source Action B1317 Battery voltage high VDM Go To Pinpoint Test C . B1318 Battery voltage low VDM Go To Pinpoint Test C . B1342 ECU is defective VDM INSTALL a new VDM. REFER to Air Suspension Control Module in this section. SET the ride height. REFER to Ride Height Adjustments in this section. CARRY OUT the pneumatic test. TEST the system for normal operation. B2477 VAPS II steering assist curve not complete VDM REFER to Section 211-00 . C1445 Vehicle speed signal circuit failure VDM GO to Symptom Chart . C1724 Air suspension height sensor power circuit failure VDM Go To Pinpoint Test D . C1725 Air suspension front pneumatic failure VDM Go To Pinpoint Test E . C1726 Air suspension rear pneumatic failure VDM Go To Pinpoint Test E . C1760 Air suspension rear height sensor signal circuit failure VDM Go To Pinpoint Test F . C1770 Air suspension vent solenoid output circuit failure VDM Go To Pinpoint Test G . C1790 Air suspension LR air spring/shock solenoid output circuit failure VDM Go To Pinpoint Test H . C1795 Air suspension RR air spring/shock solenoid output circuit failure VDM Go To Pinpoint Test H . C1830 Air suspension compressor relay circuit failure VDM Go To Pinpoint Test I . C1840 Air suspension disable switch circuit failure VDM Go To Pinpoint Test J . C1873 Air suspension RF air spring solenoid output circuit failure VDM Go To Pinpoint Test H . C1877 Air suspension LF air spring solenoid output circuit failure VDM Go To Pinpoint Test H . C1881 Air suspension RF height sensor circuit failure VDM Go To Pinpoint Test F . C1889 Air suspension LF height sensor circuit failure VDM Go To Pinpoint Test F . C1897 Steering VAPS circuit loop failure VDM REFER to Section 211-00 . C1964 Air suspension compressor actual run time exceeded allowed run time VDM Allow the air compressor to cool down. CLEAR the DTC. REPEAT the self-test. C1990 New control module initialization (requires ride height calibration and pneumatic test pass) VDM REFER to "Clearing DTC C1990 or C1991". C1991 Plant ride height setting and/or tests incomplete VDM REFER to "Clearing DTC C1990 or C1991".

Hi, you don't give any detail to the exact problem, but if you remove the connection wire from the fuel tank, the with the ignition on - put the wire to earth. if the fuel gauge rises to full on the dash it means the transmitter in the tank is knackered. if the fuel gauge doesn't rise then its the gauge in the dash, hope this helps.

There's a relay under hood on frt radiator support under plastic headlamp tray near hood latch.very common.harness connector heats andwires corrode.

air ride system is leaking

Possibly the wires at the drivers door where they go into the body,sometimes from the door
being opened more than the rest ,the wires will break there.
Should be able to cut a **** in the rubber boot that covers them and look for a broken wire.
If they break at the drivers door neither switch will work.

Possible wiring from sensor ( need to verify it is overheating, with Thermal Gun or probe) if it is overheating, check Fan operation and possible radiator restriction ?

The most common cause of this is leaking air suspension bags (also called air springs).

Hi! The MAF (mass air flow) sensor is surely faulty. The MAF has big contribution on the engine performance specially on the idling an vacuum supply. If the MAF is faulty the rpm will drop eratically or die. Regarding the overheating problem, you may want to check the radiator blower for it may be tripping that sometimes it works and sometimes won't. This can be a good cause. Hope this helps and thank you for using FixYa!

The cooling fan is required to operate when the engine temperature rises above the maximum operating temperature threshold.
After the car is started, it will usually take some time for this temperature to be reached.
Ensure fan runs when fan control temperature sensor switch demands.

I have done tons of work to my air ride. But, it sounds like it may have been jacked up to many times without the air ride turned off. There is a computer that moniters the height of all 4 wheels maybe that could it. Also could be the ride height sensor, it is connected to a rod that comes out of your control arm and connects to the strut. Or it could be the solonoid that plugs into the airbag.