PowertrainP001B
CautionSeverity: Caution - get it checked when you can
Lost communication with dual function sensor module
Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions
1What it means in plain English
This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.
2Common causes
- Dirty or faulty mass air flow sensor
- Vacuum or intake air leak
- Weak fuel pump or clogged fuel filter
- Faulty fuel injector
- Faulty oxygen sensor
- Wiring or connector fault
3Can I drive?
Have it diagnosed promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, or stalls, stop safely and get professional help.
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 23
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P001B | No description available | Powertrain |
| BAIC Motor | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| BYD | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Chery | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Daewoo | P001B | No description available | Powertrain |
| DFFS | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| DFFX | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| DFXK | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| EOBD | P001B | 'A'-kamaxelprofilaktuator 'A'-styrkrets låg bank 1 Brand | Powertrain |
| Geely | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| GM | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Great Wall | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Hafei | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Holden | P001B | No description available | Powertrain |
| Honda | P001B | No description available | Powertrain |
| Hyundai | P001B | No description available | Powertrain |
| Land Rover | P001B | 'A' Camshaft Profile Control Circuit Low Bank 1 Brand | Powertrain |
| Opel | P001B | A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Peugeot | P001B | No description available | Powertrain |
| Porsche | P001B | Nockenwellensteuerung (Auslass,Bank2) - plaus Brand | Powertrain |
| Saab | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| MG (SAIC) | P001B | 'A' Camshaft Profile Control Circuit/Low Bank 1 Brand | Powertrain |
| Toyota | P001B | Lost communication with dual function sensor module 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 2
These 7-character codes are manufacturer-specific variants of P001B and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P001B00 | The output for solenoid 1 'Intake' (cylinder bank 1) for CAMTRONIC has a short circuit to ground. Brand | Powertrain |
| Mercedes-Benz | P001B11 | Der Ausgang für Stellmagnet 1 der CAMTRONIC hat Kurzschluss nach Masse. Es liegt ein Kurzschluss nach Masse vor. Brand | Powertrain |
6Related codes
Browse Pxxx codes or P001xx codes.