NO. 2 CHECK ENGINE LIGHT ILLUMINATES DESCRIPTION AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

2	CHECK ENGINE LIGHT ILLUMINATES
DESCRIPTION	Check engine light illuminates incorrectly. NOTE: If there is a malfunction in the engine system, the PCM stores a DTC and illuminates the check engine light.
POSSIBLE CAUSE	Check engine light illuminates for emission-related concern (DTC is stored in PCM) Short to ground in wiring harness between the following terminals: Instrument cluster terminal B-Front body control module (FBCM) terminal 2K Instrument cluster terminal D-Front body control module (FBCM) terminal 2I Front body control module (FBCM) terminal 2P-PCM terminal 2AK Front body control module (FBCM) terminal 2N-PCM terminal 2AL Open circuit in wiring harness between the following terminals: Instrument cluster terminal B-Front body control module (FBCM) terminal 2K Instrument cluster terminal D-Front body control module (FBCM) terminal 2I Front body control module (FBCM) terminal 2P-PCM terminal 2AK Front body control module (FBCM) terminal 2N-PCM terminal 2AL Instrument cluster malfunction
Courtesy of MAZDA MOTORS CORP.

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.

Safety Warning

No. 2 Check Engine Light Illuminates: Notes