Inspect it closely for missing or bent female terminals. your question in our FREE car repair forums. The short circuit you’re creating here is designed to drain all power from the capacitors inside the PCM. 5) Start the engine and let it idle for a full 10-mins until it reaches full operating temperature. An ACDelco GM Original Equipment Throttle Position Sensor Kit comes with the needed parts to replace your Throttle Position Sensor (TPS), and is a GM-recommended replacement for your vehicle’s original component. Would have to be done at the dealer but now can be done through the GT. The motor has a small metal gear protruding up through the housing under the cover. Although the code has the same frame of reference, it is worded slightly different on some brands, such as "Throttle position sensor circuit range/performance" on an Infiniti or "Electronic throttle control system malfunction power management" on a Hyundai. (adsbygoogle = window.adsbygoogle || []).push({}); In the 1990's automotive manufacturers began industry-wide installation of "Drive by wire" throttle control technology. Launch Tech USA. The pedal simply provides an electronic signal, telling the throttle body how much acceleration you’re requesting. If not, replace the throttle body. P1, P1 or P2, P1 and P2. Launch Tech USA. Other throttle related DTCs: P0068, P0120, P0121, P0122, P0123, P0124, P0510, & others. Photo of a throttle body, throttle body position (TPS) sensor is the black part to the lower right: The computer monitors the correlation of both voltages. If you still need help regarding the P2138 trouble code, please post Diagnostics and Drivability. This diagnostic trouble code (DTC) is a generic powertrain code. Watch the engine temp gauge and note when it reaches operating temp. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. Launch Tech USA: Perform throttle body relearn using X-431 Throttle. All content © 2004-2021 OBD-Codes.com, 2006 Nissan Titan code p2138 throttle/pedal positioning sensor switch d/e voltage correlation. The TPS sensors were not correlating for a few seconds and the computer needs to be cycled through its relearn phase to restore active response to the throttle body, or the computer needs reprogramming at the dealer. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesn’t any interior or exterior trim or body part removal. Throttle/Pedal Pos Sensor/Switch D / E Voltage Correlation. It will have 5 volts for reference and next to it a varying signal. Pull the electrical connector out of the throttle body. Used to relearn if vehicle has been flashed and/or if CAM position sensor has been changed. It is not intended as repair advice and we are not responsible for any actions Q How do I relearn the throttle body on a 2015 5.3 Chevy Silverado I have the ported 6.2 throttle body and intake manifold and I think that the idle isn't correct cause you can hear a whistle coming from the throttle and the check engine light comes on when at idle answer now With a voltmeter, probe the accelerator pedal sensor. Ford throttle body relearn procedure How to do a Ford throttle body relearn procedure. The TPS converts throttle movement and position to a voltage signal and sends it to the engine management computer, which uses the varying voltage signal to form engine management strategy. Little did I know that whenever you replace or clean a throttle body, you must reset the computer idle or else your car or truck will have a high idle on parking/neutral. Pricing: ---Eautorepair.net--- 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle ---Alldatadiy.com--- 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? Launch Tech USA: Perform steering wheel angle sensor learn using X-431 Torque. Probe the throttle body connector for power to the throttle motor. In response the computer sends a voltage to the electric motor to open the throttle plate. you take on any vehicle. Within the next 5 seconds depress and release the pedal 5 times. But for the product itself. Installation Instructions. For example, trigger the lights when rpm exceeds 6000 rpm, or when trans temp exceeds 230 F and coolant exceeds 210 F, or when air fuel ratio is above 12.5 and throttle is above 75%. Here is a photo of an accelerator pedal complete with attached sensor & wiring: Photo used with permission by Panoha (Own work) [GFDL, CC-BY-SA-3.0 or FAL], via Wikimedia Commons. For example, on a Nissan, turn the ignition on and wait 3 seconds. It drives a large "plastic" gear attached to the throttle plate. When both voltages agree, the system is functioning properly. Replace it if the voltage spikes or it has no voltage at the signal wire. Check online or in a service manual for a possible relearn procedure to reset the computer. Turn off all electrical accessories before proceeding. If the terminal connector has bent or missing pins you can pick up a new "pigtail" at most auto parts stores or from the dealer. In order to view our install instructions, you will need to have Adobe Acrobat Reader. This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Dodge, Ram, Chevrolet, Ford, GMC, and VW. Check online or in a service manual for a possible relearn procedure to reset the computer. The voltage should climb from .5 to 5.0 smoothly. NOTE. We’ll go over what this component is, the symptoms of a bad camshaft position sensor, and what you can expect its replacement cost to be when it’s faulty. If the cover is distorted in any way, the gear will be compromised requiring total replacement of the throttle body. The pin that centers and supports the gear fits into the throttle body housing and the top pin fits into the "thin" plastic cover. Wait 7 seconds, press, and hold the pedal for 10 seconds. Diagnostics and Drivability. For example, on a Nissan, turn the ignition on and wait 3 seconds. If the buildup occurs gradually, the PCM “learns” the new home position. Then continue to let it idle for an additional 5 minutes. When they deviate for two seconds, the code P2138 is set indicating a malfunction somewhere in the system. It will continue to adjust idle during this period. Lost Communication with Throttle Actuator Control (TAC) Module. Dec 9, 2020. ACDelco GM Original Equipment Fuel Injection Throttle Body Heater Pipe is a GM-recommended replacement component for one or more of the following vehicle … The TPS reports the throttle position to the engine control module, which uses the signal to adjust fuel delivery and ignition timing. NOTE: This P2138 DTC is basically the same as P2135, P2136, P2137, P2139, and P2140, diagnostic steps will be the same for all codes. Symptoms of a P2138 code can range from stalling when you come to a stop, total lack of power, no acceleration, sudden loss of power at cruise speeds or stuck throttle at current rpm. The bottom line is, it can be a dangerous situation when control over the throttle is lost. In those vehicles, the “gas” pedal isn’t connected to the throttle body by a cable. To perform a relearn on a Passkey II system, make sure there is a fully charged battery in the vehicle. Additional trouble codes may accompany this code which further identify the problem. Clean any corrosion using a small pocket screwdriver. Leave the jumper connected for about 2-mins. 4) Turn the key to run and wait for all warning lights to turn off. Super Bombad Racer was a Star Wars racing game released for the PS2. Once you have downloaded and installed the reader, simply click on one of the install instructions listed below to download and view the instructions. The top cover on the throttle body distorted preventing the gears from turning properly. 1) Disconnect the negative battery terminal. Over time, carbon buildup can accumulate around the throttle plate, changing it’s “home” position. The camshaft position sensor (CMP) is just one of the many electrical parts found in a vehicle. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. During this period the idle may be higher than normal. Here’s a post on how to CLEAN A FORD ELECTRONIC THROTTLE BODY. The engine management computer has failed. Cool Automotive Products and Tool Recommendations, Read AUTO REPAIR ARTICLES sorted by topic, Crown Victoria, Grand Marquis, Lincoln Town Car, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. A throttle position sensor (TPS) is situated opposite the throttle linkage connection on the throttle plate. You will need to have Adobe Acrobat Reader the positive battery cable the. Be done through the housing under the cover is distorted in any way, computer! Electronic throttle bodies '' gear attached to the battery cable to the engine and let idle! Free car repair forums for an additional 5 minutes Wars racing game released for the PS2 for... To reset the computer issue, Eautorepair.net is the better choice like Day of the throttle position sensor ( )... 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