U2171 Mazda Rx-01 OBD Code

OBD/2 U2171 error code description and symptoms.

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.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U2171, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U2171 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U2171 Mazda Rx-01 Error Code Repair Process :

The rule of U2171 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of blower (fan) circuit short to vbatt. Likewise, overriding the OBD U2171 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Mazda Rx-01 U2171 OBD2 Code

A common cause of code U2171 is the failure of Blower (Fan) Circuit Short to Vbatt, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Dirty Oil
Faulty TCM or TCM programming
Spark plugs may be faulty

U2171 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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U2171 Mazda Rx-01 OBD Code

U2171 Mazda Rx-01 Error Code Repair Process :

Common Causes of Mazda Rx-01 U2171 OBD2 Code

U2171 code for other Mazda cars