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Home / DTC / C1708 — Level Control Disabled

C1708 — Level Control Disabled

Detailed page for trouble code C1708.

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Code

C1708

HYUNDAI C — Chassis

Level Control Disabled

Brand: HYUNDAI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty ride height/level sensor(s) (open, shorted, out-of-range)
  • Loss of power or ground to level control module (blown fuse, poor ground, wiring damage)
  • Failed level control module (ECU) or internal software fault
  • Failed compressor, pump or solenoid valves in air suspension systems
  • CAN or LIN communication loss between level control module and BCM/ABS/ECU
  • Corroded or disconnected connectors, wiring harness damage

Symptoms

  • Automatic ride height/leveling not functioning
  • Warning lamp/message on dash stating 'Level Control Disabled' or similar
  • Vehicle may sit at default/low/high height or be uneven front-to-rear
  • Compressor may not run when leveling commanded (no sound)
  • Related stability/traction warnings if system tied into other systems

What to check

  • Scan vehicle with a capable diagnostic tool; read all stored and pending codes and freeze frame data
  • Verify battery voltage is within specification and inspect charging system
  • Inspect fuses and relays related to suspension/level control and replace if blown
  • Visually inspect connectors, wiring harnesses and level sensor linkages for damage or corrosion
  • Check for CAN/LIN communication errors on the network (bus off, no messages)
  • Listen for compressor/pump operation when a level command is requested

Signal parameters

  • Ride height sensor output: typically 0–5 V (or resistance that changes with position) — verify with scanner/live data
  • Compressor/pump supply voltage: battery voltage present at relay/fuse when commanded
  • Compressor current draw: nominal running current (compare to spec) — unusually high or zero indicates fault
  • Module power and ground: battery voltage at power pin,
  • CAN bus: messages for level control present on CAN ID(s) when system active, normal differential voltages on bus

Diagnostic algorithm

  1. Connect a scan tool and capture the full set of DTCs and live data. Note which sensors/actuators show faults or out-of-range values.
  2. Clear codes and attempt to reproduce. Observe if C1708 returns and under what conditions.
  3. Check battery voltage and measure module supply voltage and ground continuity. Repair poor connections or replace blown fuse/relay.
  4. Inspect ride height sensor(s): check connector pins, measure sensor voltage or resistance while moving the linkage; replace if out-of-spec or intermittent.
  5. Verify CAN/LIN communication to the level control module and related modules. Repair wiring or module faults causing loss of communication.
  6. Command the compressor/pump and solenoids with a diagnostic tool while monitoring voltage and current. Replace failed compressor/valves or repair wiring as needed.
  7. If wiring and actuators test good, perform module self-test and consider reprogramming or replacing the level control module per manufacturer procedures.
  8. After repairs, clear codes, perform relearn or calibration procedures for level sensors/height and verify proper operation and no return of the fault.

Likely causes

  • Open/shorted ride height sensor or bad sensor output (most common)
  • Blown fuse or poor ground to level control module
  • Compressor/pump failure or excessive current draw
  • Intermittent CAN communication preventing module operation

Fault status

⚠️ Status
Level Control Disabled — automatic ride-height/leveling system unavailable. Service required.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

C1700 C1701 C1702 C1710 C1711
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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