OBD Guide

P1015

Reductant Control Module Sensor Serial Communication Circuit Low Voltage

P1015 is an OBD-II diagnostic trouble code meaning: Reductant Control Module Sensor Serial Communication Circuit Low Voltage. Common causes: open or short circuit in the communication circuit, poor contact in connectors. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Problems with the SCR system
  • Possible errors regarding NOx emissions

Causes

  • Open or short circuit in the communication circuit
  • Poor contact in connectors
  • Reagent control module sensor malfunction
  • Problems with the reagent control module
  • Corrosion in electrical connections

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check the voltage in the communication circuit
  3. Clean contacts from corrosion
  4. Check the sensor and reagent control module
  5. If necessary, replace faulty components

Related codes

FAQ

What does the P1015 code mean?

P1015 is an OBD-II diagnostic trouble code that indicates: Reductant Control Module Sensor Serial Communication Circuit Low Voltage

What causes a P1015 error code?

The most common causes of P1015 include: Open or short circuit in the communication circuit; Poor contact in connectors; Reagent control module sensor malfunction; Problems with the reagent control module.

How do I fix a P1015 diagnostic trouble code?

To fix P1015: Check the integrity of wiring and connectors. Check the voltage in the communication circuit. Clean contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1015?

Yes, but get it checked soon

How much does it cost to fix P1015?

The estimated repair cost for P1015 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat