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2013-2015 CX-5 – VARIOUS ELECTRICAL SYSTEM MALFUNCTION(S) RELATED TO C-15 CONNECTOR CORROSION
APPLICABLE MODEL(S)/VINS
2013-2015 CX-5 vehicles with VINs lower than JM3KE******554564 (produced before Nov. 24, 2014)
Vehicles may experience one or more of the following symptoms in connection with a malfunction related to the C-15 connector.
- The driver side power window does not operate.
- The door does not open when using the advanced keyless system.
- The warning lamp stays ON even after the ignition switch is turned OFF.
- DTC B10E7:17 (START STOP UNIT, IG1 Relay Circuit Malfunction) and DTCs related to communication errors may be stored in PCM memory.
The symptoms listed above may be caused by corrosion of the C-15 connector terminals due to water intrusion through the front door.
In low ambient temperatures, the door harness hardens.
If the door is fully opened, it may create a gap between the door and the door harness grommet, which may allow water to enter through the gap.
MASS PRODUCTION CHANGES:
- The front door harness grommet has been changed to improve sealing performance.
- Holes inside the front pillar (which are made for weight reduction), have been covered to prevent water intrusion.
- The C-15 connector has been improved.
REPAIR PROCEDURE
OUTLINE:
If one or more of the above mentioned symptoms can be confirmed, disconnect the C-15 connector (which joins the door harness and the rear harness). Inspect for any signs of corrosion of the C-15 connector terminals referring to the inspection procedure below.
- If there is any corrosion at the C-15 connector, replace the door harness and repair the rear harness according to the following repair procedure.
- If there is no corrosion found at the C-15 connector, this bulletin is not applicable. Troubleshoot the concern(s) according to the MS3 online instructions or the Workshop Manual.
