OBD Guide

P1560

Back-Up Voltage Circuit Malfunction

P1560 is an OBD-II diagnostic trouble code meaning: Back-Up Voltage Circuit Malfunction. Common causes: open or short circuit in the backup voltage circuit, faulty backup circuit fuse. Estimated repair cost: $6–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–167 (est.)

Symptoms

  • Resetting ECU settings (adaptations) every time the ignition is turned off
  • Problems starting the engine
  • Check Engine Light Is On
  • Immobilizer malfunctions
  • Loss of saved data (radio stations, settings, etc.)

Causes

  • Open or short circuit in the backup voltage circuit
  • Faulty backup circuit fuse
  • Problems with the ignition relay or main relay
  • Corrosion or poor contact in ECU connectors
  • Malfunction of the control unit (ECU) itself

How to Fix

  1. Check the fuses associated with the backup power circuit
  2. Check the integrity of the wiring from the battery to the ECU
  3. Check ECU contacts and connectors for corrosion
  4. Check the functionality of the ignition relay and main relay
  5. If necessary, replace the control unit (ECU)

Related codes

Error P1560 by Vehicle Brand

FAQ

What does the P1560 code mean?

P1560 is an OBD-II diagnostic trouble code that indicates: Back-Up Voltage Circuit Malfunction

What causes a P1560 error code?

The most common causes of P1560 include: Open or short circuit in the backup voltage circuit; Faulty backup circuit fuse; Problems with the ignition relay or main relay; Corrosion or poor contact in ECU connectors.

How do I fix a P1560 diagnostic trouble code?

To fix P1560: Check the fuses associated with the backup power circuit. Check the integrity of the wiring from the battery to the ECU. Check ECU contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1560?

Yes, but get it checked soon

How much does it cost to fix P1560?

The estimated repair cost for P1560 is $6–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat