OBD Guide
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B10D7

PATS Key System Programming Failure

B10D7 is an OBD-II diagnostic trouble code meaning: PATS Key System Programming Failure. Common causes: chip in the ignition key is faulty, problems with the immobilizer antenna. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • The immobilizer indicator is flashing
  • The system does not recognize the key

Causes

  • Chip in the ignition key is faulty
  • Problems with the immobilizer antenna
  • PATS module failure
  • Incorrect key programming
  • Damage to the PATS wiring harness

How to Fix

  1. Diagnostics of the PATS system using a scanner
  2. Checking the status of the key chip
  3. Checking the immobilizer antenna around the ignition switch
  4. Re-programming keys
  5. Replacing faulty PATS system components

Related codes

B10D6B10D8P0513

FAQ

What does the B10D7 code mean?

B10D7 is an OBD-II diagnostic trouble code that indicates: PATS Key System Programming Failure

What causes a B10D7 error code?

The most common causes of B10D7 include: Chip in the ignition key is faulty; Problems with the immobilizer antenna; PATS module failure; Incorrect key programming.

How do I fix a B10D7 diagnostic trouble code?

To fix B10D7: Diagnostics of the PATS system using a scanner. Checking the status of the key chip. Checking the immobilizer antenna around the ignition switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B10D7?

Yes, but get it checked soon

How much does it cost to fix B10D7?

The estimated repair cost for B10D7 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat