Nissan Maxima U1000: Meaning, Causes + Diagnosis

U1000 is a manufacturer-specific trouble code.  It is very common to see in the Nissan Maxima, and any other Nissan-made vehicles (Nissan or Infiniti). How the Maxima’s CAN Bus System Works Before jumping into figuring out what is causing U1000 in your Nissan Maxima, it’s important to have an understanding of the CAN bus system. … Read more

Nissan Maxima:  Bad Knock Sensor Symptoms

Modern vehicles use knock sensors to detect engine detonation.  This allows the PCM (powertrain control module) to run very aggressive spark timing.  If you are concerned that your Nissan Maxima has a bad knock sensor, we’ve listed them out below. A knock sensor works by listening to your engine and determining if your Maxima is … Read more

Nissan Maxima: AC Compressor Not Turning On – Diagnosis

No matter where you live if your Nissan Maxima’s AC compressor is not turning on, it can turn a pleasant commute into a nightmare (particularly if you have kids that are riding with you). The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (it’s going to depend … Read more

Nissan Maxima U0101:  Meaning, Causes, + Diagnosis

U0101 is a generic powertrain code, which means it has the same definition for the Nissan Maxima as it would any other vehicle.  It means that your Maxima’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the  TCM itself. U0101 … Read more

Nissan Maxima P219B: Causes, Diagnosis, + Symptoms

P219B is a generic OBD2 trouble code.  This code indicates that your Nissan Maxima’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. Your Maxima is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are … Read more

Nissan Maxima: P219A Meaning, Causes, & Diagnosis

P219A is a generic OBDII code.  The code indicates that your Nissan Maxima’s air/fuel ratio is out of balance (too rich or too lean). Your Maxima is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio.   With P219A are … Read more

Nissan Maxima U0100:  Lost Communication with ECM/PCM “A”

U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Nissan Maxima).  This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has … Read more

P2097 Nissan Maxima

P2097 is a generic OBD II code, which means that it has the same meaning for the Nissan Maxima as it would any other vehicle.  It specifically indicates that your Maxima detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter is too rich. (too much fuel for the amount of fuel … Read more