What does code P26C9 mean?

Q: What does code P26C9 mean?

Chassis Control Module 2 Requested MIL Illumination. P26C9 is a generic powertrain code indicating that the Chassis Control Module 2 (CCM2) has sent a network request to the engine control module (ECM) to illuminate the Malfunction Indicator Lamp (MIL). The ECM stores this code because it received a valid but unexpected MIL illumination request from the chassis control module, which typically means the CCM2 has detected a fault within its own system and is asking the ECM to turn on the dashboard warning light.

DTC codes / P26xx · Computer and output circuits / P26C9

P26C9Chassis Control Module 2 Requested MIL Illumination

P26C9 is a generic powertrain code indicating that the Chassis Control Module 2 (CCM2) has sent a network request to the engine control module (ECM) to illuminate the Malfunction Indicator Lamp (MIL). The ECM stores this code because it received a valid but unexpected MIL illumination request from the chassis control module, which typically means the CCM2 has detected a fault within its own system and is asking the ECM to turn on the dashboard warning light.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.