OBD Guide
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B1848

Ignition Tamper Circuit Short To Ground

B1848 is an OBD-II diagnostic trouble code meaning: Ignition Tamper Circuit Short To Ground. Common causes: wiring harness damage, ignition switch malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • Check engine light is on
  • Intermittent engine operation
  • Activation of the anti-theft system

Causes

  • Wiring harness damage
  • Ignition switch malfunction
  • Short circuit in the anti-theft system circuit
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check wiring harness for damage
  2. Check the ignition switch for faults
  3. Check the anti-theft system circuit for a short circuit.
  4. Replace damaged components if necessary
  5. Reset the error and check if it returns

Related codes

B1847B1849P0510

FAQ

What does the B1848 code mean?

B1848 is an OBD-II diagnostic trouble code that indicates: Ignition Tamper Circuit Short To Ground

What causes a B1848 error code?

The most common causes of B1848 include: Wiring harness damage; Ignition switch malfunction; Short circuit in the anti-theft system circuit; Problems with the engine control unit (ECU).

How do I fix a B1848 diagnostic trouble code?

To fix B1848: Check wiring harness for damage. Check the ignition switch for faults. Check the anti-theft system circuit for a short circuit.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1848?

Yes, but get it checked soon

How much does it cost to fix B1848?

The estimated repair cost for B1848 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat