What is the p2138 code on GM vehicles?

GM has issued a technical service bulletin # 07-06-04-019D to address a P2138 Reduced Power issue. The P2138 trouble code may be stored in the computer along with a check engine light. The P2138 Reduced Power bulletin applies to the following vehicles:

Are there TSB’s for the 2011 Chevy Equinox?

The following TSB(s) may applyto your 2011 Chevrolet Equinox. The source of the information below is the National Highway Transportation Safety Administration (NHTSA), which maintains TSBs for vehicles sold in the United States. If there are no TSB’s listed for your vehicle, that does not necessarily mean there are none.

What is the p2138 throttle position sensor and switch?

P2138 Throttle/Pedal Pos Sensor/Switch D/E Voltage Correlation Trouble Code Fault Location Probable Cause P2138 Throttle position (TP) sensor/switch D/E Wiring, TP sensor/switch

Where is the p2138 reduced power Bulletin located?

The P2138 trouble code may be stored in the computer along with a check engine light. The P2138 Reduced Power bulletin applies to the following vehicles: 2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) The P2128 trouble code refers to Accelerator Pedal Position (APP) Sensor 1-2 Correlation.

When does p2138 come on on a Pontiac Grand Prix?

Hi all, I have a 2007 Pontiac Grand Prix with sunroof which is throwing code P2138. This has been going on for nearly a year now. When driving in rain or very wet road conditions the Reduced Engine Power message will come on along with the check engine. This only happens when wet and never on dry da…

What does the p0721 OBD-II trouble code mean?

The P0721 OBD-II trouble code is associated with the Transmission Output Speed Sensor. When the Powertrain Control Module (PCM) detects a malfunction within the Output Speed Sensor Circuit a wide variety of codes can be triggered depending on the specific vehicle and the specific automatic transmission.

What does p2138 mean on an Accelerator sensor?

P2138 Meaning The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor.

How does a mechanic diagnose the p2101 trouble code?

The Check Engine Light will be illuminated and the code is set in ECM memory as a fault. The engine will not accelerate and no throttle response will happen. The engine will idle and that is all. The idle may be lower or higher than normal. How does a mechanic diagnose the P2101 code?

What to do if your p2138 is not working?

Use the scanner to retrieve all stored trouble codes and write them down for future reference. You may also want to keep any related freeze frame data. Your notes may prove helpful if the P2138 is intermittent. Clear the codes and test drive the vehicle. If the code is reset, continue with the diagnosis.

What happens if the p0641 sensor is reset?

If the PCM enters readiness mode, the repair was successful. If the code is reset, the PCM will not enter readiness mode and you will know that you still have a problem. The severity of a stored P0641 depends upon which sensor circuit is experiencing an open condition.

What does trouble code p2128 mean on a GMC Sierra?

The P2128 trouble code refers to Accelerator Pedal Position (APP) Sensor 1-2 Correlation. Do NOT assume you have a bad accelerator pedal sensor. GM says the condition is caused by water leaking into the body harness connector that carries the APP signal to the PCM. The water changes the voltage readings from the APP.

Do you need a PCM for a GM car?

Depending on the year, model and engine of your GM vehicle, your starting system may be less complicated or use only some of the components shown here. For example, earlier anti-theft systems didn’t communicate the same way with the PCM. The bottom line is you MUST get the wiring diagram for your particular vehicle.

How to tell if your car has a p2127 code?

In all cases of the P2127 code, the Check Engine Light will be illuminated on the dashboard. In addition to the Check Engine Light, the car may not respond when the throttle is depressed, the vehicle may run poorly, and may stall or exhibit lack of power upon acceleration.

What does a p0122 code on a car mean?

That may include but is not limited to vehicles from Honda, Jeep, Toyota, VW, Chevy, Ford, etc. Although generic, the exact repair steps may vary depending on year, make, model and powertrain configuration. A P0122 code means that the the vehicle’s computer has detected that the TPS (throttle position sensor)…

What causes the p2138 code on a TP sensor?

Many problems can trigger the P2138 code, from a defective TP sensor to faulty wiring in the accelerator pedal. It usually takes a seasoned mechanic to pinpoint its exact cause. However, if you are confident with your automotive repair know-how, you can try to diagnose the code yourself.

How much does it cost to diagnose p2138 Chevrolet engine light?

The cost of diagnosing the P2138 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

How much does it cost to repair a p2138 Chevy?

An error occurred while retrieving sharing information. Please try again later. What does this mean? The cost of diagnosing the P2138 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

What does the p2563 code on a Duramax mean?

When your Duramax begins throwing a P2563 code, a scan tool will read ‘ Turbocharger Vane Control Position Sensor Performance ‘. The vane position sensor controls the unison ring and turbo vanes located within the Duramax’s Garrett turbocharger.

Where is the p2138 reduced power code stored?

What does the p2138 Chevrolet engine code mean?

Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. What does this mean? The cost to diagnose the P2138 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

What does the OBD code p0642 mean?

P0642: Code P0642 indicates the powertrain control module (PCM) has detected a low reference voltage for the sensor ‘A’ circuit. This typically indicates a short circuit. P0643: Code P0643 indicates the powertrain control module (PCM) has detected a high reference voltage for the sensor ‘A’ circuit. This typically indicates an open circuit.

How to diagnose and repair p0641 sensor reference voltage?

How to diagnose and repair P0641. 1 Perform a preliminary inspection. Sometimes P0641 can pop up intermittently. This is especially true if the code is a history code and not current. 2 Check the circuit. 3 Check the sensors. 4 Check the PCM.

What does trouble code p2135 mean on a car?

The automotive trouble code P2135 throttle/pedal position sensor/switch A/B voltage correlation refers to a problem related to the throttle’s ability to open and close properly. In the 1990’s automotive manufacturers began industry-wide installation of “Drive by wire” throttle control technology.

What are the possible causes of a p2135 Chevrolet?

P2135 Chevrolet Possible Causes. Faulty electric throttle control actuator (TP sensor 1 and 2) Throttle Position Sensor harness is open or shorted. Throttle Position Sensor circuit poor connection. Faulty accelerator pedal position sensor.

When to set the TAC code p2135?

A typical TAC system has two TP sensors and two APP sensors for fail-safe reasons. If the data between one of the sensor pairs (e.g, the two throttle position sensors) does not correlate, code P2135 is set. In most cases, the ECM will also force the vehicle into Reduced Power Mode.

What is the p2138 code on GM vehicles?