U1297 Mercedes Viano OBD Code

OBD/2 U1297 error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U1297 Mercedes Viano Error Code Repair Process :

For glass break sensor failure check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U1297 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks glass break sensor failure with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes Viano U1297 OBD2 Code

A common cause of code U1297 is the failure of Glass Break Sensor Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Exhaust gas leaks
Fuel injectors harness is open or shorted
1Camshaft Position Sensor circuit poor electrical connection

U1297 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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U1297 Mercedes Viano OBD Code

U1297 Mercedes Viano Error Code Repair Process :

Common Causes of Mercedes Viano U1297 OBD2 Code

U1297 code for other Mercedes cars