Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1998MOUNTAINEER 5.0 P, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 41 (ELECTRONIC SUSPENSION SYSTEM)
1998 Mercury Mountaineer 5.0 P, AWD
Section 41 (Electronic Suspension System)
1998 Mercury Mountaineer 5.0 P, AWDSECTION Section 41 (Electronic Suspension System)
WARNING: This page is about a different car, the 2001 Mercury Mountaineer, 2001 Ford Explorer, 2000 Mercury Mountaineer, and 2000 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- Description
- Operation
- Notes
- Component Locations
- Air Compressor Assembly
- Air Suspension Control Relay
- Air Compressor Vent Solenoid
- Air Shock Absorber
- Air Suspension Height Sensor
- Air Suspension Switch
- CHECK AIR RIDE SYSTEM Warning Light
- Data Link Connector (DLC)
- Door Ajar Switch
- Generic Electronic Module (GEM)
- Lamp Switch (Door Ajar Switch)
- Rear Gate Solenoid
- Vehicle Speed Sensor (VSS)
- Air Compressor Assembly
- Air Compressor Relay
- Air Shock Absorber
- Air Suspension Control Module
- Air Suspension Height Sensor
- Fill Solenoid
- Rear Gate Solenoid
- Steering Sensor
- Adjustments
- Diagnosis & Testing
- Connector Identification
- Diagnostic Tests
- Notes
- Test A: No Module Communication Or Only Intermittent Communication
- Test B: DTC C1439 - Acceleration Input Signal Circuit Fault
- Test C: DTC C1724 - Height Sensor Power Circuit Fault
- Test D: DTC C1726 - Rear Pneumatic Fault
- Test E: DTC C1760 - Rear Height Sensor Circuit Fault
- Test F: DTC C1770 - Vent Solenoid Circuit Fault
- Test G: DTC C1830 - Air Compressor Relay Circuit Fault
- Test H: DTC C1865 - Rear Fill Solenoid Circuit Fault
- Test I: DTC C1869 - Rear Gate Solenoid Circuit Fault
- Test J: DTC B1318 - Battery Voltage Low
- Test K: DTC B1342 - Ecu Internal Fault
- Test L: DTC B1485 - BRAKELIGHT Switch Input Short To Power
- Test M: DTC B1565 - Door Ajar Input Short To Power
- Test N: Air Suspension System Is Inoperative
- Test O: Air Suspension System Functions With Switch Off
- Test P: Compressor Cycles Continuously With Key Off
- Test Q: Excessive Compressor Noise
- Test R: Air Compressor Test
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.