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I have a 2008 Range Rover HSE. i get a suspension fault error. normal height only. i just put in a new engine and suspension is sitting all the way down.

Initially thought it was a faulty air compressor and had that changed but still no resolution. changed air suspension relay, 60A fuse gets power but 5A air suspension fuse has no power. compressor never kicks in, i'm guessing because 5A fuse has no power. i cleaned the control module in the center console because previous owner was pretty much a pig but still no changes. i pretty much am out of ideas and don't know what to do. any ideas would help or additional questions also i get error code c1a27-14 when i hook the car up to an autel diagnostic machine

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Posted on Jan 02, 2017

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SOURCE: 1997 lincoln continental air suspension

just change the compresser i want thru the same thing this past week.

Posted on Feb 10, 2009

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SOURCE: what are the most common repairs on a Land Rover

dont f with it

Posted on Jan 05, 2010

  • 54 Answers

SOURCE: i have a 2003 range rover the air suspension inactive came on

it could be from many reasons...sometimes even the ABS system will cause this fault or even the Steering position Sensor. if it comes and goes then inspect your height sensors as the early version of the height sensors are getting weak and like melting so it gives wrong reading which cause the fault...offer more info. and you'll get your solution

Posted on Jul 05, 2010

  • 1 Answer

SOURCE: Where is the control module for the air suspension

2001 lincoln rides to hard and on dash says ride data error

Posted on Jul 22, 2010

alicantecoli
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SOURCE: 05 Range Rover HSE inactive air suspension

Sorry computer controlled and it needs the dealer software to find the fault ,lot of money i would imagine to repair in the dealers

Posted on Feb 14, 2012

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2 Answers

I dont have power going to my air ride pump? What could it be


Fuse , relay maybe.
Fuse #109 50 amp . under hood fuse/relay box .

Air Suspension Compressor Relay, 4.6L C1000
Near right headlamp
Air Suspension Compressor Relay, 5.4L C1000
Near right headlamp

Feb 19, 2017 | Cars & Trucks

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Rear suspension will deflate but why won't it inflate?


That could work , You mite be able to test the sensor in question with ohm meter . Test the front one an see what the resistance is ,then check the back one. I don't know what it should be with out looking it up in the service info . You could also check to see if the sensor is getting power from the control module , an see if there is a return input to the module .
There are a few DTC'S this able to set !
Air Suspension Control Module Diagnostic Trouble Code (DTC) Index
Air Suspension Control Module Diagnostic Trouble Code (DTC) Index DTCs Description Source Action B1318 Battery Voltage Low Air Suspension Control Module Go To Pinpoint Test C . B1342 Air Suspension Control Module Air Suspension Control Module INSTALL a new air suspension control module. REFER to Module-Air Suspension Control . SET the front ride height. REFER to Air Suspension Initialization (Clear DTC B2140). CLEAR the DTCs. REPEAT the self-test. B1485 Brake Pedal Input Circuit Battery Short Air Suspension Control Module RERUN On-Demand Self-Test. MAKE SURE that the brake pedal is not pressed. If DTC is returned again, REPAIR brake pedal position (BPP) circuitry. B1566 Door Ajar Circuit Short to Ground Air Suspension Control Module Go To Pinpoint Test D . B2140 Initialization Failure (Vehicle Ride Height Not Programmed) Air Suspension Control Module REFER to Air Suspension Initialization (Clear DTC B2140). C1439 Vehicle Acceleration EEC-V Circuit Failure Air Suspension Control Module Go To Pinpoint Test E . C1724 Air Suspension Height Sensor Power Circuit Failure Air Suspension Control Module Go To Pinpoint Test F . C1726 Air Suspension Pneumatic Failure Air Suspension Control Module Go To Pinpoint Test G . C1760 Air Suspension Height Sensor High Signal Circuit Failure Air Suspension Control Module Go To Pinpoint Test H . C1770 Air Suspension Vent Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test I . C1790 Air Suspension LR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test J . C1795 Air Suspension RR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test K . C1830 Air Suspension Compressor Relay Circuit Failure Air Suspension Control Module Go To Pinpoint Test L . C1917 Steering Electronic Variable Orifice (EEVO) Out-of-Range Fault Air Suspension Control Module Go To Pinpoint Test Q .
  • Uneven vehicle height
  • Circuitry.
  • Rear pneumatic fault.
  • Air compressor assembly.
  • Air suspension control module.
  • Go To Pinpoint Test I .

Nov 06, 2015 | 2002 Lincoln Navigator

1 Answer

How do i get the on bored compressor to work on my 2003 Hummer H2


There is a lot involved in is air ride suspension system ! A 60a Fuse in the under hood fuse block Marked VSES / ECAS .This is the power for the compressor . There is a air suspension control module , Ride height switch , Fuse in the I / P fuse block 4 WD 15a supply's B+ to ride height switch . There is a electronically controlled air suspension relay that the control module energizes to send power to turn on the compressor.

This system can an will store DTC"S in the control module !
Diagnostic Starting Point - Air Suspension
Begin the system diagnosis with the Diagnostic System Check - Air Suspension . The Diagnostic System Check will provide the following information:
?€¢
The identification of the control module(s) which command the system.


?€¢
The identification of any stored diagnostic trouble codes (DTCs) and their status.

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
If you don't know about this stuff , I strongly suggest you take it to a repair shop ! Do you know about electrical circuits , relay's fuse's ? Do you know how to use a volt meter, read a wiring diagram. The first thing to do would be hook up a scan tool ,not a code reader. This system can set several DTC'S -diagnostic trouble codes.
DTC B2795 DTC C0563 DTC C0569 DTC C0626 DTC C0631 DTC C0660 DTC C0696 DTC C0702 DTC C0707 DTC C0711 DTC C0712 DTC C0713 DTC C0716 DTC C0717
You need to be able to test for B+ at different points in the wiring !

Mar 15, 2015 | 2003 Hummer H2

2 Answers

I have a 99 expedition, air ride suspension went out. Changed the air compressor and still will not air up. Checked the relay and seems to be working. One other time this happened and friend changed a...


Your best bet take it an have it diagnosed ! This is computer controlled an may have DTC'S - diagnostic trouble codes stored !
C1724 Air Suspension Height Sensor Power Circuit Failure Air Suspension Control Module GO to Pinpoint Test F . C1726 Air Suspension Rear Pneumatic Failure Air Suspension Control Module GO to Pinpoint Test G . C1760 Air Suspension Rear Height Sensor High Signal Circuit Failure Air Suspension Control Module GO to Pinpoint Test H . C1770 Air Suspension Vent Solenoid Output Circuit Failure Air Suspension Control Module GO to Pinpoint Test I . C1790 Air Suspension LR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module GO to Pinpoint Test J . C1795 Air Suspension RR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module GO to Pinpoint Test K . C1830 Air Suspension Compressor Relay Circuit Failure Air Suspension Control Module GO to Pinpoint Test L
Symptom Chart Condition Possible Sources Action
  • No communication with the air suspension control module
  • CJB Fuse 4 (15A), 6 (5A) and 20 (5A).
  • Circuitry.
  • Air suspension control module.
  • Air suspension switch.
  • GO to Pinpoint Test A .

You replaced a part that you probably didn't need !
  • The compressor is inoperative
  • BJB Fuse 109 (50A).
  • Air compressor assembly.
  • Circuitry.
  • Air suspension relay.
  • GO to Pinpoint Test Q .

There is a lot to this system an guessing as to what the problem is ,isn't the way to fix it.
Measure the voltage between air compressor relay C1000 Pin A, Circuit 1053 (LB/PK), harness side and ground.
  • Is the voltage greater than 10 volts?
Yes GO to Q3 .

No REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Measure the resistance between air compressor C1000 Pin B, Circuit 538 (GY/RD), harness side and air compressor assembly C194M Pin 4, Circuit 538 (GY/RD), harness side.
  • Is the resistance less than 5 ohms?
Yes GO to Q4 .

No REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Air Suspension Height Sensor
One air suspension height sensor is mounted on the vehicle. The air suspension height sensor sends a voltage signal to the air suspension control module. The output ranges from approximately 4.75 volts at minimum height (when the vehicle is low or in full jounce), to 0.25 volts at maximum height (when the vehicle is high or in full rebound). The air suspension height sensor has a useable range of 80 mm (3.2 in) compared to total suspension travel of 200-250 mm (8 to 10 in) at the wheel. Therefore, the air suspension height sensor is mounted to the suspension at a point where full rear suspension travel at the wheel is relative to 80 mm (3.2 in) of travel at the air suspension height sensor. The air suspension height sensor is attached between the No. 5 frame crossmember (upper socket) and the panhard rod (lower socket). Replace the air suspension height sensor as a unit.
When the air suspension height sensor indicates that the rear of the vehicle is lower than trim under normal driving conditions, the air compressor will turn on and pump compressed air to the air springs. When the sensor indicates that the rear of the vehicle is raised above trim under normal driving conditions, this will cause the air to be vented from the air springs to lower the vehicle back to its trim height level.
Compressor Relay
The compressor relay is energized by the air suspension control module to allow high current to flow from the battery to the compressor motor.
  • A solid state relay is used in the air suspension system for air compressor control. The relay incorporates a custom power metal oxide semi-conductor field effect transistor (MOSFET) and ceramic hybrid circuitry. The relay switches high current loads in response to low power signals and is controlled by the logic of the air suspension control module.
  • Air Suspension Control Module
    NOTE: The 4WAS air suspension control module is used for the RAS system. The internal processor recognizes external circuitry to determine if it is installed in a 4WAS or a RAS equipped vehicle.
    NOTE: The air suspension control module is calibrated with information from the air suspension height sensor. A new or exchanged air suspension control module requires a ride height adjustment calibration process to be performed.
    The air suspension control module controls the air compressor motor (through a solid state relay), and the air spring solenoids. The air suspension control module also provides power to the air suspension height sensor. The air suspension control module controls vehicle height adjustments by monitoring the air suspension height sensor, vehicle speed, a steering sensor, acceleration input, the door ajar signal, transfer case signals, and the brake pedal position (BPP) switch. The air suspension control module also conducts all fail-safe and diagnostic strategies and contains self-test and communication software for testing the vehicle and related components.
    The air suspension control module monitors and controls the air suspension system through a 32-pin two-way connector. The air suspension control module is keyed so that the air suspension control module cannot be plugged into an incorrect harness. There are two sides of the harness connection to the air suspension control module. Each is uniquely colored and keyed to prevent reversing the connections.

Jun 09, 2017 | 2000 Ford Expedition

1 Answer

Have 98 range rover hse when I leave it overnight on the highest level the rear suspension does stay up, when I put it on middle level the rear suspension goes down overnight can you please help


The problem is in the valves that control the height. There will be a small leak in the unit that is causing the fault. Have them /it checked and replace faulty unit

Mar 02, 2013 | Cars & Trucks

1 Answer

05 Range Rover HSE inactive air suspension


Sorry computer controlled and it needs the dealer software to find the fault ,lot of money i would imagine to repair in the dealers

Feb 14, 2012 | 2004 Land Rover Range Rover

1 Answer

Am receiving a message on my Range Rover 2004 Inactive suspension


Welcome to Fixya

Air suspension is currently in fault mode. It will have to be re-set by someone who has the Land Rover scantool (either a dealer or an independent shop). The EAS system is inaccessible with a regular OBDII scantool. The car will not allow you to control the suspension height (raise/lower/defeat) until the fault is cleared. Please see this link .

Thank you for using Fixya!

Apr 07, 2011 | 2004 Land Rover Range Rover

1 Answer

2000 ford explorer, fuse box don't show me what fuses are for


There are two fuse boxes. A baqttery junction box under the hood on the drivers side and one inside on drivers side. Good luck.


Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

1 60A** I/P Fuse Panel

2 40A** Blower Motor Relay

3 50A** 4 Wheel Anti-Lock Brake System

(4WABS) Module

4 30A** Power Windows, Power Moon

Roof, Power Seat

5 50A** Ignition Switch, Starter Relay

6 20A** Transfer Case Relay

7 - Not Used

8 20A** Air Suspension

9 40A** Air Suspension

10 30A** PCM Power Relay

1 10A* A/C Relay

2 30A* Heated Seats

3 30A* Heated Backlight

4 15A* Fog Lamps and Daytime Running

Lamps

5 4 3 2 1

10 9 8 7 6

12 11 10 9

8 7 6 5

4 3 2 1

15 14 13

2 1 1

9

6

10

8

7

5

4

1

3 2

175

MEGAFUSE

Roadside emergencies

197

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

5 - Not Used

6 10A* Powertrain Control Module

7 30A* 4 Wheel Anti-Lock System

(4WABS) Module

8 15A* Rear Wiper Motor

9 20A* Fuel Pump Relay and RAP

Module

10 15A* Horn Relay

11 15A* Parklamps Relay and Mainlight

Switch

12 30A* Mainlight Switch and

Multifunction Switch

13 15A* Heated Oxygen Sensor, EGR

Vacuum Regulator, EVR Solenoid,

Camshaft Position (CMP) Sensor,

Canister Vent Solenoid

14 30A* Generator/Voltage Regulator

15 - Not Used

1 - Wiper Park Relay

2 - A/C Relay

3 - Wiper High/Low Relay

4 - PCM Power Relay

5 - Fuel Pump Relay

6 - Starter Relay

7 - Horn Relay

8 - Rear Wipe Down Relay

9 - Blower Motor Relay

10 - Rear Wipe Up Relay

1 - Not Used

1 - DRL Diode
2 - Electronic Engine Controls Diode

Apr 06, 2011 | 2000 Ford Explorer

2 Answers

I changed my air compressor for my air ride suspension and now i have no power to my compressor. i changed the compressor relay as well.


check the fuses and the switch in drivers side rear compartment to make sure there is power to it.

Feb 17, 2011 | 1999 Ford Expedition

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