U1631 Trouble Code

View U1631 obd/2 error code description and symptoms. U1631 engine photo

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

U1631 Error Code Repair Process :

The scent may U1631 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 U1631, so if the inside of your car lamp headlamp high-beam circuit open 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.

U1631 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.

Common Causes of U1631

A common cause of code U1631 is the failure of Lamp Headlamp High-Beam Circuit Open, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Faulty TCM or TCM programming
Faulty Variable Camshaft Timing (VCT) position solenoid
Clogged or faulty fuel injector (s)

U1631 code for all cars

You can view according U1631 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U1631 Audi Allroad

+U1631 Vauxhall Astra H

+U1631 Minerva 30

+U1631 Citroen Eole

+U1631 Nissan Vanette

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

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