PowertrainP20FF
CautionSeverity: Caution - get it checked when you can
Reductant control module performance
Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
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 16
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P20FF | Metering Pump. Open Circuit Or Short Circuit To Battery Positive Brand | Powertrain |
| BYD | P20FF | No description available | Powertrain |
| Daewoo | P20FF | No description available | Powertrain |
| EOBD | P20FF | Reduktantkontrollmodul ytelse Brand | Powertrain |
| Ford | P20FF | No description available | Powertrain |
| GM | P20FF | No description available | Powertrain |
| Holden | P20FF | No description available | Powertrain |
| Isuzu | P20FF | No description available | Powertrain |
| Land Rover | P20FF | Reductant Control Module Performance Brand | Powertrain |
| Maserati | P20FF | Reductant Control Module Performance Brand | Powertrain |
| Mitsubishi | P20FF | No description available | Powertrain |
| Opel | P20FF | No description available | Powertrain |
| Peugeot | P20FF | No description available | Powertrain |
| Saab | P20FF | No description available | Powertrain |
| Tata | P20FF | No description available | Powertrain |
| Toyota | P20FF | Reductant control module performance 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 30
These 7-character codes are manufacturer-specific variants of P20FF and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Volvo | P20FF13 | No description available | Powertrain |
| Volvo | P20FF1B | No description available | Powertrain |
| Volvo | P20FF1E | No description available | Powertrain |
| SsangYong | P20FF42 | Drive Control Unit (DCU) data error Brand | Powertrain |
| SsangYong | P20FF44 | Drive Control Unit (DCU) internal error (RAM/flash) Brand | Powertrain |
| SsangYong | P20FF45 | Drive Control Unit (DCU) internal error (memory) Brand | Powertrain |
| SsangYong | P20FF47 | Drive Control Unit (DCU) internal error (watchdog) Brand | Powertrain |
| Volvo | P20FF49 | No description available | Powertrain |
| Mercedes-Benz | P20FF4B | No description available | Powertrain |
| SsangYong | P20FF4B | ECU circuit temperature high Brand | Powertrain |
| Mercedes-Benz | P20FF61 | UHtrTnkOvrTemp: Die Signalberechnung ist fehlerhaft. Reductant Control Module Performance Brand | Powertrain |
| Sprinter | P20FF61 | UHtrTnkOvrTemp: Die Signalberechnung ist fehlerhaft. Reductant Control Module Performance Brand | Powertrain |
| Mercedes-Benz | P20FF62 | 24275,501,S_WRST: Der Signalvergleich ist fehlerhaft. Symptom-Name: WRST Brand | Powertrain |
| Sprinter | P20FF62 | 24275,501,S_WRST: Der Signalvergleich ist fehlerhaft. Symptom-Name: WRST Brand | Powertrain |
| Mercedes-Benz | P20FF64 | No description available | Powertrain |
| Mercedes-Benz | P20FF68 | No description available | Powertrain |
| Mercedes-Benz | P20FF81 | No description available | Powertrain |
| Mercedes-Benz | P20FF92 | No description available | Powertrain |
| Sprinter | P20FF92 | No description available | Powertrain |
| Volvo | P20FF92 | No description available | Powertrain |
| Mercedes-Benz | P20FF94 | No description available | Powertrain |
| SsangYong | P20FF96 | Drive Control Unit (DCU) circuit temperature error Brand | Powertrain |
| Mercedes-Benz | P20FFE0 | 24275,501,S_L_SIDE_RDU_SHO: Reductant Control Module Performance Brand | Powertrain |
| Sprinter | P20FFE0 | 24275,501,S_L_SIDE_RDU_SHO: Reductant Control Module Performance Brand | Powertrain |
| Mercedes-Benz | P20FFFA | 24275,1439,S_TEST_ABC: Symptom-Name: TEST_ABC Brand | Powertrain |
| Sprinter | P20FFFA | 24275,1439,S_TEST_ABC: Symptom-Name: TEST_ABC Brand | Powertrain |
| Mercedes-Benz | P20FFFE | 24275,501,S_H_SIDE_RDU_OPEN: Reductant Control Module Performance Brand | Powertrain |
| Sprinter | P20FFFE | 24275,501,S_H_SIDE_RDU_OPEN: Reductant Control Module Performance Brand | Powertrain |
| Mercedes-Benz | P20FFFF | 24275,501,S_H_SIDE_RDU_SHO: Reductant Control Module Performance Brand | Powertrain |
| Sprinter | P20FFFF | 24275,501,S_H_SIDE_RDU_SHO: Reductant Control Module Performance Brand | Powertrain |
6Related codes
Browse Pxxx codes or P20Fxx codes.