PowertrainP1236
CautionSeverity: Caution - get it checked when you can
The boost pressure sensor signal is implausible when the engine is not running.
Key terms: Boost pressure: extra air pressure made by a turbo or supercharger · 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 35
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1236 | Evaporative Emission Control System Purge Control Valve Circuit. Refuelling. - Stuck Closed Brand | Powertrain |
| Mercedes-Benz | P1236 | No description available | Powertrain |
| BMW | P1236 | Short circuit to positive Brand | Powertrain |
| BYD | P1236 | A/D converter Brand | Powertrain |
| Chery | P1236 | A/D converter Brand | Powertrain |
| Daewoo | P1236 | VSV 1 Circuit Brand | Powertrain |
| Daihatsu | P1236 | High fuel temperature abnormal Brand | Powertrain |
| DFFS | P1236 | The boost pressure sensor signal is implausible when the engine is not running Brand | Powertrain |
| DFFX | P1236 | A/D converter Brand | Powertrain |
| DFXK | P1236 | Boost pressure sensor signal implausible when engine not running Brand | Powertrain |
| EOBD | P1236 | A/D muundur Brand | Powertrain |
| Geely | P1236 | A/D converter Brand | Powertrain |
| GM | P1236 | No description available | Powertrain |
| Great Wall | P1236 | A/D converter Brand | Powertrain |
| Hafei | P1236 | A/D converter Brand | Powertrain |
| Holden | P1236 | Cylinder 5 Injector Control Circuit Shorted Brand | Powertrain |
| Honda | P1236 | OR P1237 BOOST PRESSURE CONTROL MONITOR DEVIATION TOO BIG Brand | Powertrain |
| Hyundai | P1236 | No description available | Powertrain |
| Isuzu | P1236 | No description available | Powertrain |
| Land Rover | P1236 | battery back-upPossible cause:open circuit or short circuit to ground Brand | Powertrain |
| Mahindra | P1236 | No description available | Powertrain |
| Mitsubishi | P1236 | A/D converter Brand | Powertrain |
| Nissan | P1236 | No description available | Powertrain |
| Opel | P1236 | VSV 1 Circuit Brand | Powertrain |
| Perodua | P1236 | High fuel temperature abnormal Brand | Powertrain |
| Peugeot | P1236 | No description available | Powertrain |
| Porsche | P1236 | Doppelbedatung cdcev5 Brand | Powertrain |
| Proton | P1236 | A/D converter Brand | Powertrain |
| Renault | P1236 | No description available | Powertrain |
| Saab | P1236 | VSV 1 Circuit Brand | Powertrain |
| Sprinter | P1236 | No description available | Powertrain |
| Subaru | P1236 | Intake Control Valve Solenoid Circuit High Brand | Powertrain |
| Suzuki | P1236 | ETC MOT-B2 Brand | Powertrain |
| Tata | P1236 | Boost Pr Brand | Powertrain |
| Toyota | P1236 | The boost pressure sensor signal is implausible when the engine is not running. 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 5
These 7-character codes are manufacturer-specific variants of P1236 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P123600 | Safety: target gear error Brand | Powertrain |
| Mercedes-Benz | P123649 | Communication with the steering column module has a malfunction. Die Botschaft fehlt. Brand | Powertrain |
| Mercedes-Benz | P12364A | Timeout EM01. Brand | Powertrain |
| Mercedes-Benz | P12365A | The Flexray Communication Controller has not reached the normal active state within the configured time afetr FlexRay startup Brand | Powertrain |
| Mercedes-Benz | P12365B | Unplausible Daten wurden vom 'Stillstandskoordinator' empfangen. Brand | Powertrain |
6Related codes
Browse Pxxx codes or P123xx codes.