OBD Guide
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P16C0

Powertrain Control Module A/T Control System Incomplete Update

P16C0 is an OBD-II diagnostic trouble code meaning: Powertrain Control Module A/T Control System Incomplete Update. Common causes: failure during pcm software update, control module power supply problems. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • Incorrect operation of the automatic transmission
  • Delayed gear shifting
  • Check Engine Light Is On
  • It is possible to switch to emergency mode of operation of the gearbox

Causes

  • Failure during PCM software update
  • Control module power supply problems
  • PCM damage
  • Faulty wiring harness or connectors

How to Fix

  1. Check history of latest software updates
  2. Diagnose the integrity of electrical wiring and connectors
  3. Attempt to update the PCM software again
  4. If necessary, replace the transmission control module
  5. Repair only from an authorized dealer

Related codes

P0606P0700P16C1

FAQ

What does the P16C0 code mean?

P16C0 is an OBD-II diagnostic trouble code that indicates: Powertrain Control Module A/T Control System Incomplete Update

What causes a P16C0 error code?

The most common causes of P16C0 include: Failure during PCM software update; Control module power supply problems; PCM damage; Faulty wiring harness or connectors.

How do I fix a P16C0 diagnostic trouble code?

To fix P16C0: Check history of latest software updates. Diagnose the integrity of electrical wiring and connectors. Attempt to update the PCM software again. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P16C0?

Do not drive — repair immediately

How much does it cost to fix P16C0?

The estimated repair cost for P16C0 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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