Chevy Trax: P219A Meaning, Causes, & Diagnosis

P219A is a generic OBDII code.  The code indicates that your Chevy Trax’s air/fuel ratio is out of balance (too rich or too lean). Your Trax 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

Chevy Trax 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 Chevy Trax).  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 Chevy Trax

P2097 is a generic OBD II code, which means that it has the same meaning for the Chevy Trax as it would any other vehicle.  It specifically indicates that your Trax 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

Chevy Trax U0073: Meaning, Symptoms, + Diagnosis

U0073 Definition: Control Module Communication Bus”A” Off U0073 is a fairly common trouble code.  It is generic, so it has the same meaning for your Chevy Trax as it would any other.  This code appears when something has interrupted the communication between two of your Trax’s control modules. The most common causes of U0073 are … Read more

Chevy Trax P2276: B2S3 O2 Sensor Stuck Lean

P2276 is a general diagnostic trouble code.  It means that your Chevy Trax’s third (from the exhaust manifold) “bank 2” downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   Having this code does not necessarily mean that the vehicle is running lean (although it can, but … Read more

Chevy Trax P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Chevy Trax is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Chevy Trax P2018:  Meaning + Diagnosis

P2018 is a generic diagnostic trouble code (DTC) that indicates an issue with your Chevy Trax’s intake manifold runner position sensor/valve (from here on out, we will be referring to this sensor by its common abbreviation of IMRC). P2018 Definition: IMRC – Switch Circuit Intermittent (Bank 1) IMRC The IMRC’s job is to help your Trax’s … Read more

Chevy Trax P0356: Coil Pack “F” Malfunctioning – Diagnosis

P0356 is a generic OBD II diagnostic code that indicates an issue with the ignition coil “F” (the sixth cylinder). Specifically with the primary or secondary wiring circuits. If your Chevy Trax has thrown this code, it will usually be accompanied by P0306.  Addressing P0356 should take care of P0306 on its own. P0356 is a … Read more