OBD Guide
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B2469

Auxiliary Heater Coolant Pump Circuit Open

B2469 is an OBD-II diagnostic trouble code meaning: Auxiliary Heater Coolant Pump Circuit Open. Common causes: broken or damaged pump wiring harness, coolant pump malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Auxiliary heater does not work
  • Reduced interior heating efficiency
  • Check Engine light comes on

Causes

  • Broken or damaged pump wiring harness
  • Coolant pump malfunction
  • Relay or fuse problems
  • Control unit malfunction

How to Fix

  1. Check the pump fuse and relay
  2. Inspect the wiring harness for damage
  3. Check pump resistance
  4. Replace pump or relay if necessary
  5. Clear error code and check system

Related codes

B2468B2470

FAQ

What does the B2469 code mean?

B2469 is an OBD-II diagnostic trouble code that indicates: Auxiliary Heater Coolant Pump Circuit Open

What causes a B2469 error code?

The most common causes of B2469 include: Broken or damaged pump wiring harness; Coolant pump malfunction; Relay or fuse problems; Control unit malfunction.

How do I fix a B2469 diagnostic trouble code?

To fix B2469: Check the pump fuse and relay. Inspect the wiring harness for damage. Check pump resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2469?

Limited driving only, diagnose soon

How much does it cost to fix B2469?

The estimated repair cost for B2469 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat