OBD Guide
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B2240

Rear Cargo Door Reset Switch Stuck Short to Ground

B2240 is an OBD-II diagnostic trouble code meaning: Rear Cargo Door Reset Switch Stuck Short to Ground. Common causes: short circuit to ground in switch circuit, damaged or stuck reset switch. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of the automatic rear door
  • Error message on display
  • Reset/set door position function does not work

Causes

  • Short circuit to ground in switch circuit
  • Damaged or stuck reset switch
  • Wiring harness damage
  • Contact corrosion

How to Fix

  1. Check the condition of the rear door reset switch
  2. Examine the switch circuit for a short circuit.
  3. Check wiring harness for damage
  4. If necessary, replace the switch or repair the wiring

Related codes

B2235B2236

FAQ

What does the B2240 code mean?

B2240 is an OBD-II diagnostic trouble code that indicates: Rear Cargo Door Reset Switch Stuck Short to Ground

What causes a B2240 error code?

The most common causes of B2240 include: Short circuit to ground in switch circuit; Damaged or stuck reset switch; Wiring harness damage; Contact corrosion.

How do I fix a B2240 diagnostic trouble code?

To fix B2240: Check the condition of the rear door reset switch. Examine the switch circuit for a short circuit.. Check wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2240?

Yes, but get it checked soon

How much does it cost to fix B2240?

The estimated repair cost for B2240 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat