U203D Volvo 164 OBD Code

OBD/2 U203D error code description and symptoms.

The issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

U203D Volvo 164 Error Code Repair Process :

The scent may U203D signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U203D, so if the inside of your car heated wind shield relay short to vbatt (changed from failure 2/6/97) as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Volvo 164 U203D OBD2 Code

A common cause of code U203D is the failure of Heated Wind Shield Relay Short to Vbatt (changed from Failure 2/6/97), but there are several other possible causes as well, such as ;

Exhaust gas leaks
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Ignition coils circuit poor electrical connection
Oil flow restriction in the oil passages or the VCT valve body

U203D is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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U203D Volvo 164 OBD Code

U203D Volvo 164 Error Code Repair Process :

Common Causes of Volvo 164 U203D OBD2 Code

U203D code for other Volvo cars