OBD Guide
ENFRDEESPT

C1842

Air Suspension Disable Switch Circuit Short To Battery

C1842 is an OBD-II diagnostic trouble code meaning: Air Suspension Disable Switch Circuit Short To Battery. Common causes: wiring harness damage, air suspension cut-off switch malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Disabling the air suspension
  • Suspension fault indicator is on
  • Uneven body height
  • Hard suspension operation

Causes

  • Wiring harness damage
  • Air suspension cut-off switch malfunction
  • Short circuit in the circuit
  • Problems with the air suspension control module

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance of the switch
  3. Check the voltage in the circuit
  4. Replace damaged components
  5. Reset the error and check the system operation

Related codes

C1840C1841C1843

FAQ

What does the C1842 code mean?

C1842 is an OBD-II diagnostic trouble code that indicates: Air Suspension Disable Switch Circuit Short To Battery

What causes a C1842 error code?

The most common causes of C1842 include: Wiring harness damage; Air suspension cut-off switch malfunction; Short circuit in the circuit; Problems with the air suspension control module.

How do I fix a C1842 diagnostic trouble code?

To fix C1842: Check the integrity of the wiring harness. Check the resistance of the switch. Check the voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1842?

Limited driving only, diagnose soon

How much does it cost to fix C1842?

The estimated repair cost for C1842 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat