The control module detected that the Engine Coolant Pump Control Module System voltage stayed above the expected range.
TuningBot DTC Database · v4.37.15
P26D1 Engine Coolant Pump Control Module System Voltage High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P26D1 means
Related and nearby codes
How to read P26D1
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P26D1
What does P26D1 mean?
Engine Coolant Pump Control Module System Voltage High. The control module detected that the Engine Coolant Pump Control Module System voltage stayed above the expected range.
Is P26D1 generic or manufacturer-specific?
P26D1 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P26D1 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
