OBD Guide
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C2198

Initialization Switch for Test Mode DTC

C2198 is an OBD-II diagnostic trouble code meaning: Initialization Switch for Test Mode DTC. Common causes: wiring harness fault, problems with the control module. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Car diagnostic problems
  • Restraint system failure

Causes

  • Wiring harness fault
  • Problems with the control module
  • Software glitches
  • Damage to connectors

How to Fix

  1. Check the wiring harness for damage
  2. Check connectors and contacts for oxidation or corrosion
  3. Scan the control module for errors
  4. Update control module software
  5. Replace damaged components if necessary

Related codes

C2197C2199B0001

FAQ

What does the C2198 code mean?

C2198 is an OBD-II diagnostic trouble code that indicates: Initialization Switch for Test Mode DTC

What causes a C2198 error code?

The most common causes of C2198 include: Wiring harness fault; Problems with the control module; Software glitches; Damage to connectors.

How do I fix a C2198 diagnostic trouble code?

To fix C2198: Check the wiring harness for damage. Check connectors and contacts for oxidation or corrosion. Scan the control module for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2198?

Do not drive — repair immediately

How much does it cost to fix C2198?

The estimated repair cost for C2198 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat