OBD Guide

C161E

Electric Pump Relay Circuit System Stuck

C161E is an OBD-II diagnostic trouble code meaning: Electric Pump Relay Circuit System Stuck. Common causes: relay contacts sticking, open or short circuit in control circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of the electric pump
  • Engine overheating
  • Check engine light comes on

Causes

  • Relay contacts sticking
  • Open or short circuit in control circuit
  • Electric pump malfunction
  • Wiring Harness Problems

How to Fix

  1. Check the electric pump relay for sticking
  2. Check the integrity of the relay control circuit
  3. Check the operation of the electric pump
  4. Replace relay or pump if necessary

Related codes

FAQ

What does the C161E code mean?

C161E is an OBD-II diagnostic trouble code that indicates: Electric Pump Relay Circuit System Stuck

What causes a C161E error code?

The most common causes of C161E include: Relay contacts sticking; Open or short circuit in control circuit; Electric pump malfunction; Wiring Harness Problems.

How do I fix a C161E diagnostic trouble code?

To fix C161E: Check the electric pump relay for sticking. Check the integrity of the relay control circuit. Check the operation of the electric pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C161E?

Limited driving only, diagnose soon

How much does it cost to fix C161E?

The estimated repair cost for C161E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat