What does code P2D88 mean?

Q: What does code P2D88 mean?

Fan 1 Control Module Performance. P2D88 indicates that the powertrain control module (PCM) has detected a performance fault in the fan 1 control module circuit, meaning the cooling fan did not respond as commanded or the module's internal diagnostics reported an error. The PCM monitors the control circuit and fan operation, and when the actual fan behavior does not match the commanded state within a calibrated time, it stores this code and illuminates the check engine light.

DTC codes / P2Dxx · Hybrid propulsion / P2D88

P2D88Fan 1 Control Module Performance

P2D88 indicates that the powertrain control module (PCM) has detected a performance fault in the fan 1 control module circuit, meaning the cooling fan did not respond as commanded or the module's internal diagnostics reported an error. The PCM monitors the control circuit and fan operation, and when the actual fan behavior does not match the commanded state within a calibrated time, it stores this code and illuminates the check engine light.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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