What does code P2D89 mean?

Q: What does code P2D89 mean?

Fan 1 Control Module Supply Voltage Circuit. P2D89 indicates that the powertrain control module (PCM) has detected an abnormal voltage condition on the power supply circuit feeding the fan 1 control module, which is the electronic unit that regulates the primary engine cooling fan. The PCM monitors this circuit and sets the code when the voltage falls outside the expected range, typically because of a wiring fault, a failing control module, or a charging system issue.

DTC codes / P2Dxx · Hybrid propulsion / P2D89

P2D89Fan 1 Control Module Supply Voltage Circuit

P2D89 indicates that the powertrain control module (PCM) has detected an abnormal voltage condition on the power supply circuit feeding the fan 1 control module, which is the electronic unit that regulates the primary engine cooling fan. The PCM monitors this circuit and sets the code when the voltage falls outside the expected range, typically because of a wiring fault, a failing control module, or a charging system issue.

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.