2010 Cadillac Escalade Esv P0138 Fault Code Check

When you check 2010 Cadillac Escalade Esv car engine light came on code P0138 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Cadillac manufacturer may have a different definition for the P0138 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

A good ground connection is also extremely important. P0138 2010 2010 Cadillac Escalade Esv engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

2010 Cadillac Escalade Esv P0138 OBD-II Diagnostic Powertrain (P) Trouble Code Description 2010 Cadillac Escalade Esv car P0138 OBD-II Trouble Code The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture Reason For 2010 Cadillac Escalade Esv P0138 Code The reason of 2010 Cadillac Escalade Esv P0138 OBD-II Fault Code Check is P0138 O2 Sensor Circuit High Voltage Bank 1 Sensor 2.

2010 Cadillac Escalade Esv P0138 Possibble Fix Ways :

Overheating can be caused by a few different factors. The simplest cause may be that your car needs more coolant. Yet depleted coolant can be caused by bigger problem, like leaks or faulty hoses, so always check for the underlying cause before simply filling it up with more. Another common reason for overheating may be that the radiator fan which keeps your engine cool is faulty, so check your fan motor connection and fan thermostat.

The P0138 2010 2010 Cadillac Escalade Esv Check Engine lamp 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. P0138 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 P0138 2010 2010 Cadillac Escalade Esv with your car's computers to find out exactly what's prompting the light to turn on.

What does fault code P0138 mean for 2010 Cadillac Escalade Esv ? What does a diagnostic reading P0138 mean for 2010 Cadillac Escalade Esv ? How to fix OBD2 Code P0138 for 2010 Cadillac Escalade Esv ? What do we know about P0138 code for 2010 Cadillac Escalade Esv ?