OBD Guide
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P16D7

PCM Internal F-CAN Communication Circuit Malfunction

P16D7 is an OBD-II diagnostic trouble code meaning: PCM Internal F-CAN Communication Circuit Malfunction. Common causes: internal pcm fault, pcm power problems. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Incorrect engine operation
  • Gear shifting problems (for automatic transmissions)
  • Loss of communication with other modules
  • Reduced engine power

Causes

  • Internal PCM fault
  • PCM power problems
  • Damage to the F-CAN wiring harness
  • Corrosion of connector contacts
  • PCM ground problems

How to Fix

  1. Check PCM power and ground
  2. Inspect the F-CAN wiring harness for damage.
  3. Check the condition of the connector contacts
  4. Run PCM diagnostics using a scan tool
  5. If necessary, reflash or replace the PCM

Related codes

P16D8P16D6P16D9

FAQ

What does the P16D7 code mean?

P16D7 is an OBD-II diagnostic trouble code that indicates: PCM Internal F-CAN Communication Circuit Malfunction

What causes a P16D7 error code?

The most common causes of P16D7 include: Internal PCM fault; PCM power problems; Damage to the F-CAN wiring harness; Corrosion of connector contacts.

How do I fix a P16D7 diagnostic trouble code?

To fix P16D7: Check PCM power and ground. Inspect the F-CAN wiring harness for damage.. Check the condition of the connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P16D7?

Limited driving only, diagnose soon

How much does it cost to fix P16D7?

The estimated repair cost for P16D7 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat