OBD Guide

P2170

Exhaust Pressure Regulator Vent Solenoid Control Circuit Low

P2170 is an OBD-II diagnostic trouble code meaning: Exhaust Pressure Regulator Vent Solenoid Control Circuit Low. Common causes: open or short circuit in solenoid control circuit, exhaust pressure regulator solenoid malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • The engine goes into emergency mode

Causes

  • Open or short circuit in solenoid control circuit
  • Exhaust pressure regulator solenoid malfunction
  • Problems with wiring harness or contacts
  • Engine control unit (ECU) malfunction
  • Corrosion or oxidation of contacts

How to Fix

  1. Check the integrity of the solenoid control circuit
  2. Check the resistance and operation of the solenoid
  3. Inspect the wiring harness and contacts for damage
  4. Clean contacts from corrosion and oxidation
  5. If necessary, replace the exhaust pressure regulator solenoid

Related codes

Error P2170 by Vehicle Brand

FAQ

What does the P2170 code mean?

P2170 is an OBD-II diagnostic trouble code that indicates: Exhaust Pressure Regulator Vent Solenoid Control Circuit Low

What causes a P2170 error code?

The most common causes of P2170 include: Open or short circuit in solenoid control circuit; Exhaust pressure regulator solenoid malfunction; Problems with wiring harness or contacts; Engine control unit (ECU) malfunction.

How do I fix a P2170 diagnostic trouble code?

To fix P2170: Check the integrity of the solenoid control circuit. Check the resistance and operation of the solenoid. Inspect the wiring harness and contacts for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2170?

Yes, but get it checked soon

How much does it cost to fix P2170?

The estimated repair cost for P2170 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat