PowertrainP066A
SeriousSeverity: Serious - have it checked soon
Cylinder 1 Glow Plug Control Circuit Low
Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine computer or one of its output circuits has a fault.
2Common causes
- Engine control module fault
- Power or ground connection problem
- Low battery or charging voltage
- Wiring short or open circuit
- Software or memory fault
3Can I drive?
If the engine runs normally, drive carefully to a workshop for diagnosis. If it runs badly, stalls, or will not restart, have the car towed.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 30
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| BAIC Motor | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| BYD | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Chery | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Daewoo | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| DFFS | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| DFFX | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| DFXK | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| EOBD | P066A | Cylinder 1 glødestiftstyringskreds lav Brand | Powertrain |
| Geely | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| GM | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Great Wall | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Hafei | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Holden | P066A | Glow Plug Control Module Control Circuit Brand | Powertrain |
| Honda | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Hyundai | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Isuzu | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Land Rover | P066A | Cylinder 1 glow plug - circuit low Brand | Powertrain |
| Maserati | P066A | Cylinder 1 Glow Plug Circuit Low Brand | Powertrain |
| Mitsubishi | P066A | No.1 cylinder glow plug short Brand | Powertrain |
| Opel | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Peugeot | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Porsche | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Proton | P066A | No.1 cylinder glow plug short Brand | Powertrain |
| Saab | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| MG (SAIC) | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Subaru | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Tata | P066A | Cylinder 1 Glow Plug Control Circuit Low SAE | Powertrain |
| Toyota | P066A | Glow Plug 1 Control Circuit Low Brand | Powertrain |
| Volkswagen | P066A | Glow plug cylinder 1: short to ground; Short to plus Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 3
These 7-character codes are manufacturer-specific variants of P066A and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P066A00 | Internal malfunction in #1 glow plug controller Brand | Powertrain |
| Mercedes-Benz | P066A11 | Der Ausgang für Glühkerze (Zylinder 1) hat Kurzschluss nach Masse. Es liegt ein Kurzschluss nach Masse vor. Brand | Powertrain |
| Sprinter | P066A11 | Der Ausgang für Glühkerze (Zylinder 1) hat Kurzschluss nach Masse. Es liegt ein Kurzschluss nach Masse vor. Brand | Powertrain |
6Related codes
Browse Pxxx codes or P066xx codes.