OBD Guide
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P1516

IMRC Input Error (Bank 1)

P1516 is an OBD-II diagnostic trouble code meaning: IMRC Input Error (Bank 1). Common causes: imrc drive fault, open or short circuit in control circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Rough engine idling
  • Check Engine Light Is On
  • Dips during acceleration

Causes

  • IMRC drive fault
  • Open or short circuit in control circuit
  • Mechanical jamming of the intake manifold flaps
  • Connector problems
  • Engine control unit malfunction

How to Fix

  1. Check the condition of the IMRC dampers for mechanical damage
  2. Check the integrity of the IMRC drive control circuit
  3. Check connectors and contacts for oxidation
  4. Replace faulty IMRC drive if necessary
  5. Reset the error code and check if it returns

Related codes

P1517P1518P1520

Error P1516 by Vehicle Brand

BuickCadillacChevroletChryslerFordGMGMCJaguarLincolnMazdaMercuryOldsmobileSaturnSubaruVolkswagen

FAQ

What does the P1516 code mean?

P1516 is an OBD-II diagnostic trouble code that indicates: IMRC Input Error (Bank 1)

What causes a P1516 error code?

The most common causes of P1516 include: IMRC drive fault; Open or short circuit in control circuit; Mechanical jamming of the intake manifold flaps; Connector problems.

How do I fix a P1516 diagnostic trouble code?

To fix P1516: Check the condition of the IMRC dampers for mechanical damage. Check the integrity of the IMRC drive control circuit. Check connectors and contacts for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1516?

Yes, but get it checked soon

How much does it cost to fix P1516?

The estimated repair cost for P1516 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat