2011 Mazda 6 s Touring PlusFACTORY OEM SERVICE PROCEDURE

Immobilizer System (Advanced Keyless Entry And Push Button Start System) DTCS

IMMOBILIZER SYSTEM - ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Detection condition Reference
Keyless control module PCM
B10D9:87 P1260:00 No detected communication with coil antenna (See SECURITY LIGHT: 11, DTC: B10D9:87/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D5:13 P1260:00
  • Coil antenna malfunction
  • PCM or keyless control module determined a malfunction in coil antenna even though it is normal
 (See SECURITY LIGHT: 12, DTC: B10D5:13/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D7:05 P1260:00 Key ID number program error (See SECURITY LIGHT: 13, DTC: B10D7:05/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D7:94 P1260:00 Key ID number data cannot be read (See SECURITY LIGHT: 13, DTC: B10D7:94/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D7:81 P1260:00 Keyless control module cannot read key ID number data normally (See SECURITY LIGHT: 14, DTC: B10D7:81/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D7:51 P1260:00 Keyless control module has detected unprogrammed key ID number (See SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
U0100:87 P1260:00 Communication error between keyless control module and PCM (no response/condition mismatch) (See SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10D8:00 P1260:00 Only one key or no key has been programmed (See SECURITY LIGHT: 21, DTC: B10D8:00/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10DA:51 P1260:00 Communication error between keyless control module and PCM (data transfer failure) (See SECURITY LIGHT: 22, DTC: B10DA:51/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10DA:62 P1260:00 ID number data in keyless control module and PCM do not match (See SECURITY LIGHT: 23, DTC: B10DA:62/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10E6:11 - Voltage less than the specification (2.2-6.5 V)  is detected for 0.5 s  while the coil antenna power supply circuit is active (See SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:11/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
B10E6:12 Voltage higher than the specification (2.2-6.5 V)  is detected for 0.05 s  while the coil antenna power supply circuit is not active (See SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:12/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
U0001:88 U0073:00 Module communication error (HS-CAN)
U0100:00 - Communication error with PCM
U3000:41 - Keyless control module internal malfunction (See DTC U3000:41 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.