Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
66A
Specific fault index within the subsystem.
Frequently asked questions about P066A
What does P066A mean?
Cylinder 1 Glow Plug Control Circuit Low. The control module detected that the signal in the Cylinder 1 Glow Plug Control circuit stayed below the expected operating range.
Is P066A generic or manufacturer-specific?
P066A is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P066A 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.
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU