U1505 Mazda Activehicle OBD Code

OBD/2 U1505 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

U1505 Mazda Activehicle Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine U1505 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If door handle switch circuit failure so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the door handle switch circuit failure.

Common Causes of Mazda Activehicle U1505 OBD2 Code

A common cause of code U1505 is the failure of Door Handle Switch Circuit Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Engine Control Module (ECM)
Faulty variable valve timing (VVT)
Faulty Fuel injector

U1505 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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U1505 Mazda Activehicle OBD Code

U1505 Mazda Activehicle Error Code Repair Process :

Common Causes of Mazda Activehicle U1505 OBD2 Code

U1505 code for other Mazda cars