Mazda Needs a New Brain

June 26, 2017
Some 2011-2013 Mazda6 models equipped with the 2.5L engine with VINs lower than 1YVHZ****D5M07793, produced before June 18, 2012, may experience a MIL on with DTC P0600:00 (serial communication link) stored in memory. As a result, the customer may also notice a loss of engine power while driving due to engine fail-safe mode initiation.

Some 2011-2013 Mazda6 models equipped with the 2.5L engine with VINs lower than 1YVHZ****D5M07793, produced before June 18, 2012, may experience a MIL on with DTC P0600:00 (serial communication link) stored in memory. As a result, the customer may also notice a loss of engine power while driving due to engine fail-safe mode initiation.

The MIL illumination may be cleared by disconnecting the negative battery cable, however, the DTC P0600:00 remains stored in memory. The concern may be caused by improper PCM control logic of PCM, which has been changed.

1. Verify the concern.

2. Replace the PCM with the updated PCM. PCM replacement requires MASH authorization prior to repair. Contact MASH at (888) 832-8477, option 2, to obtain authorization.

3. After PCM replacement, perform the following:

  • PCM configuration (manual section 01-14 PCM CONFIGURATION [MZR 2.5]).
  • Immobilizer system component replacement / key addition and clearing (section 09-14).

4. Verify the repair.

NEW PCM P/N                         APPLICATION

L5A8-18-881G……………........2011-2013. M/T, Calif.

L5H6-18-881A……………........2013, A/T, Calif.

L5A9-18-881F…………….........2011-2012 A/T, Calif.

L5A3-18-881G……………........2011-2013 M/T, Fed./Canada

L5A4-18-881G……………........2011-2013 A/T, Fed./Canada

Sponsored Recommendations

Learn how electronic parking brake actuators have replaced manual systems and now play a key role in advanced safety features like automatic emergency braking. This WIYB Training...
Not all fuel injectors are created equal. In this WIYB Training Series, we compare Standard® Fuel Injectors against OE, low-cost imports. See why precision engineering and rigorous...
Carrying active OEM subscriptions for all manufacturers is not possible for many shops. However, access to this software is required for certain modern vehicles and repairs, and...
Learn how to properly lubricate your AIRCAT air tools to keep them running at peak performance. Discover essential daily maintenance and storage techniques, along with the right...

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!