OBD Guide
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B2782

Power Source Control ECU Malfunction

B2782 is an OBD-II diagnostic trouble code meaning: Power Source Control ECU Malfunction. Common causes: malfunction of the power supply control unit, wiring harness damage. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Check Engine light comes on
  • Problems starting the engine
  • Failure of passive safety systems
  • Unstable operation of electrical equipment

Causes

  • Malfunction of the power supply control unit
  • Wiring harness damage
  • Short circuit in the circuit
  • Problems with ECU power supply

How to Fix

  1. Check the wiring harness for damage
  2. Check the ECU supply voltage
  3. Scan the ECU for additional errors
  4. Replace the power supply control unit if necessary

Related codes

B2781B2783P0562

FAQ

What does the B2782 code mean?

B2782 is an OBD-II diagnostic trouble code that indicates: Power Source Control ECU Malfunction

What causes a B2782 error code?

The most common causes of B2782 include: Malfunction of the power supply control unit; Wiring harness damage; Short circuit in the circuit; Problems with ECU power supply.

How do I fix a B2782 diagnostic trouble code?

To fix B2782: Check the wiring harness for damage. Check the ECU supply voltage. Scan the ECU for additional errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2782?

Limited driving only, diagnose soon

How much does it cost to fix B2782?

The estimated repair cost for B2782 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat