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Gm code 21. If a Buy Light Blue Metallic 21/WA7470 Touch Up Paint for Your 1986 Chevrolet C10-C30 Series. This means that the fuel mixture being delivered to the cylinders on that side of the engine is not within the specified range, leading to potential issues with combustion efficiency. Trouble Code 21 indicates that the Throttle Position Sensor (TPS) is reading abnormally high. You'll easily find out if TPS is bad or not. Fuel Injection Throttel position sensor (signal voltage high). Explore GM paint color codes and cross-references on PaintRef. It’s these sensors that are reporting the problem with the air-fuel ratio to the PCM. More than just a list of GM Trouble Codes! Our resources can help you fix your check engine light now! Informative articles and access to technician advice, component tests and wiring help! May 19, 2012 · My ecm is putting out a code 21. This computer is called the ECM, or "Electronic Control Module". FAQ: How to read older GM codes for free If you own a 1982 to 1995 GM car or truck, you just might be able to read your trouble codes for free! If you have a connector like this under your dash, read on (note: this connector may have a black plastic cover over it, so also look for a cover shaped like this, sorry for the messy wires here) Oct 12, 2009 · These are the GM specific OBD1 DTC codes: GM common codes for OBD1 (for vehicles made before 1995) 12 System normal 13 oxygen sensor circuit open 14 coolant sensor high resistance or shorted 15 coolant Trouble Code 21 indicates that the Throttle Position Sensor (TPS) is reading abnormally high. Exact color match paint and clear coat . All are explained in a step-by-step manner. Mar 19, 2022 · DTC C116C and/or C116B After Installation of GM Accessory Performance Brake Pads – 2019-2021 Chevrolet Silverado & GMC Sierra 1500 Mar 15, 2022 · Hello guys! Thought I'd post up the instructions on how to get your event code, the actual list of codes and what they mean so that it is easy to find whenever you want to figure out what the status is on your vehicle order. COLOR CODE: 21/WA7470 2WayPen (. In addition, malfunctioning filters, faulty SCR injectors, low-grade fluids, and failed selective reduction catalysts cause P20EE. One side of the 2WayPen is your factory-matched color; the other side contains high-quality clearcoat. The BSCM is a crucial component of the vehicle's brake system, responsible for monitoring and controlling various functions related to braking. Registered Vehicle Security Professionals can access key code information for General Motors vehicles through this site. Do you get the code 12 reference code when you check for the lights? code 12 usually indicates that the ECM is normal and is what you should get for a code before any other ones. The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. The captured vapors are then sent to GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". Where are the RPO Codes Located? Beginning with the 2018 model year, a QR code was added to the Certification label on all Buick, Cadillac, Chevrolet and GMC models. If you don't get results from our GM VIN decoder, 13-digit numbers (or alternative VIN lengths The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. Light Blue Metallic 21/WA7470 is available in a paint pen, spray paint can, or brush bottle for your 1986 Chevrolet C10-C30 Series paint repair. Are you finding the meaning of your 90s GM’s “Check Engine” light issues? Decode the secrets with our GM OBD1 codes list. Although generic, the specific repair steps may vary depending on make/model. we shut it off and restarted it and it wont idle now. I did the ole paperclip trick and it looks like a CODE 21. Im getting around 5 volts out of both of my positive tps connector wires when the pigtail is unplugged, does my ecm need to be replaced? the shop manual says one of the wires is supposed to be WELL under 2. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. The purpose of the EVAP system is to absorb fuel vapor from the fuel tank to prevent it from being released into the atmosphere, which is environmentally damaging. Select Your Paint Color for your 2021 Chevrolet (All Models) Please note: The 'All Models' pages sometimes have a large amount of results to scroll through, if your vehicle's model is in the list of options on the prior screen we recommend trying that first. . Dec 13, 2022 · What causes the P0121 code to appear? What are its symptoms? How serious is the P0121 code? How can you fix it? How much is the fixing cost? Mar 11, 2022 · This guide demonstrates how to gather diagnostic trouble codes and their definitions for GM manufactured vehicles made before 1995. OEM Make: GM OEM COLOR CODE: 21 / 7470 (PPG#3455) FOUND ON: 1982 Chevrolet C10, 1983 Chevrolet CK1500, 1984 Chevrolet C10, 1985 Chevrolet C10, 1985 Chevrol May 24, 2021 · Code 21, Throttle Position Sensor The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Aug 25, 2025 · Item description from the seller Duplicolor Perfect Match AGM0582 WA218M GM Code 21 Laser Blue Metallic Scratch Fix Touch Up Paint Scratch Fix All-In-1 Touch up tool features and abrasive prep tip. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Can OBDII code C0021 (Brake Booster Performance) be triggered by other underlying problems? GM RPO Axle Code List (F) The following is a complete list of GM RPO axle codes for Chevy and GMC vehicles starting with the letter F. The message that received is "An issue with the emissions system has been detected STEP 1: To retrieve trouble codes from your GM fuel injection system, install a paper clip, jumper wire, or any conductive tool you can find between the “A” and “B” terminals on the ALDL diagnostic connector that you installed in the passenger compartment. Aug 18, 2024 · The P0121 code for Chevrolet vehicles indicates an issue with the Throttle Position Sensor (TPS) 1, specifically related to its performance. To check what the event code status on your order is, follow the steps Select Your Paint Color for your 2021 GMC (All Models) Please note: The 'All Models' pages sometimes have a large amount of results to scroll through, if your vehicle's model is in the list of options on the prior screen we recommend trying that first. The voltage supplied to the sensor should vary, depending on throttle operation by the driver. Jul 27, 2020 · Hello, it looks like obd1 GM code 21 is the TPS out of range, this will be your throttle position sensor. Mar 26, 2021 · Q: Is it possible a Detroit GM factory paint shop sprayed the wrong but close Light Blue paint on my 1976 ElCo?, that was NOT the assigned 1976 Chevy #28 Light Blue, nor Chevy code #21 Light Blue? Background: I bought multiple NAPA hand mixed acrylic paints to fill-in rock chips. To start diagnostic trouble code gathering Oct 18, 2023 · Have you ever wondered what all those cryptic RPO codes mean when shopping for a used GM vehicle? As an owner, have you wanted to better understand the specific options and features of your ride? GM’s RPO (Regular Production Option) codes unlock a wealth of information about individual vehicles once you know how to decipher them. I believe code 21 is throttle position sensor. TPS volts should be close to 0. For GM vehicles, you can find it under the carpet in the trunk or the driver’s door jamb. This area also includes detailed listings of GM OBD-II Diagnostic Parameters used by the On Board Diagnostic system, for each GM vehicle so equipped. GM OBD/OBD2 Codes By Year LIGHT BLUE METALLIC | TAMCO PAINT High Impact Single Stage Kit Our OEM Matched Tamco Paint's Single Stage is a 4:1 Mix ratio with our INCLUDED 76XX Series Hardener. 42 V at closed throttle and rise smoothly in about 0. 85 volts at WOT. Explore GM OBD Trouble Code 21: Throttle Position Sensor Error. Need Help with the Code? Get the U1345 Chevrolet code diagnosed by a professional: Find a repair shop in your area About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. If a The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. You’ll often see this problem, like erratic oil pressure readings, in GM vehicles, especially Chevy and GMC trucks. The new QR code includes the Vehicle Identification Number (VIN), RPO codes and other information that identify the content of the vehicle. g. If a GM OBD1 Diagnostic Trouble Codes & Cures This General Motors Corporation OBD I diagnostic page explains the codes, the most probable cause and what conditions are required to set the code. What Is a Vehicle Identification Number? Let's start with the basics: A vehicle identification number is the one-of-a-kind code assigned to your vehicle during manufacturing. Gages looked normal and no out of ordinary engine sounds or performance that could tell. Ideal for use on all OEM painted surfaces. com Also check out the index of the book image [year] make model paint color name code sample RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Production Option Jun 18, 2023 · The P0449 engine code pertains to the EVAP system, which is the acronym for the Evaporative Emissions Control System. Our Corvette Exterior Touch-Up Paint is mixed to exact OE Corvette color standards OBDII Chevrolet Code Definitions. Learn more about his background. Once you have the jumper in Official Chevrolet site: see Chevy cars, trucks, crossovers & SUVs - see photos/videos, find vehicles, compare competitors, build your own Chevy & more. Pontiac, Buick, and all GM vehicles VIN Decoder - Decode your vehicle identification number. NOTE: Some codes not supported on all models, consult your specific vehicle's service manual for the correct trouble code list and description for your application. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles. If a P20EE Code Duramax is a diagnostic code that appears on the OBD II scanners due to a broken NOx sensor of the exhaust, contaminated DEF, and incorrect programming. MY IDLE DOES IDLE HIGH most of the time. Please rate, comment, & subscribe! Oct 1, 2022 · On way in to work on Interstate, check engine light came on. Jul 2, 2021 · P219B is a generic OBD2 trouble code. When the TPS is not functioning properly, it May 14, 2008 · C4 General Discussion - CODE 21 fix? - forum, My check engine light just came on. Dupli-Color vehicle color matching paint codes are tied directly to the color codes on your car ID tag/sticker. It's possible that your ecm manuf: GM → make: GMC found 25 paint color chips with a manufacturer of "GM", make of "GMC", make/model/year paint code of "21" sorted by year Other GM makes: Buick Cadillac Chevrolet GM [GMC] Geo Hummer Oldsmobile Pontiac Saturn Full data: GM << customize your view Order the book, support PaintRef. Chevy Code 21 WA7470 Light Blue Metallic Auto Paint Kit with a full gallon of base, clear, and all needed activators and reducers. com Aug 1, 2022 · If you’ve ever wondered what OBD-II Diagnostic Trouble Codes mean, you’re in luck. 1998 C5 Pace Car Purple Touch Up Paint 1oz Bottle - GM Code 21 We know you are concerned about your Corvette’s exterior appearance. (21 WA7470) at the best online prices at eBay! Free shipping for many products! Dec 28, 2008 · C4 Tech/Performance - trouble code 21 - i had my car on the smog dyno getting ready to be tested when it idled up on its own for a few seconds and set the code. com and Chevrolet OBD-II Codes section Introduction GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). This system is unique to the GM manufactured cars which include: Buick, Cadillac, Chevy, GMC, Oldsmobile and Pontiac. Aug 25, 2025 · Duplicolor Perfect Match Touch Up Paint BGM0539 WA7470 Fits GM Code 21 Light Blue Metallic 8 oz. Modern VINs typically consist of 17 characters, but older vehicles released before the format was standardized vary in length. 1:United States) GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". com for accurate color matching and detailed paint information. Aerosol Spray Paint Premium Automotive paint . Stopped at dealer after work and code P2C7A was set. Code 22 2002-2003 C5 Electron Blue Touch Up Paint 1oz Bottle - GM Code 21 We know you are concerned about your Corvette’s exterior appearance. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. The Image will pop up for better viewing. All General Motor models Buick to Pontiac Look up the paint for every model or brand of the 2021 General Motor Company. If a Small Block Chevy Suffix Codes: TJT - TXB GM body designation. This tutorial will also help you to diagnose the following OBD1 trouble codes: Code 21: Throttle Position Sensor Signal Voltage High. Clearing Trouble Codes Diagnostic trouble codes may be cleared by disconnecting the battery ground cable for at least 20 seconds. There may be slight changes depending on the year/model of vehicle, you would need to consult a factory service manual for specifics. CAR runs super fine. com GM 2 Digit Trouble Codes Tech -- GM 2 Digit codes for 82 and up (non OBD-II) code - code definition 12- diagnostic mode 13- 02 sensor or circuit 14- coolant sensor or circuit/ high temp indicated 15- coolant sensor or circuit/ low temp indicated 16- system voltage out of range 19- crankshaft position sensor or circuit 21- throttle position sensor or circuit- voltage high 22- throttle position May 29, 2018 · Checked the codes with the paperclip and got 12-21-22-23 which all should point to the right WSS. The World Manufacturer Identification code, with the first character identifying the country of assembly (e. Quickly, A = Chevelle, F = Camaro, X = Nova. Your Silverado is equipped with oxygen sensors that measure the air-fuel ratio of your engine. can anyone give me a quick walk through on how to replace it? Is it inside the carb or can it be replaced without disassembling the carb? Appreciate any help on the matter GM OBD/OBD2 Codes >> GM 93-95 Chevy VanGM Dec 3, 2019 · a list I found online : *Code 21: right front speed sensor or circuit open *Code 22: missing right front speed signal *Code 23: erratic right front speed signal *Code 25: left front speed sensor or circuit open *Code 26: missing left front speed signal *Code 27: erratic left front speed signal *Code 29: simultaneous drop-out of front speed sensors GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". I tested Gm Obd1 Code 21- Gm 12 pin to obd1 obd2 obd ii 16 pin adapter connector car motor GM OBD1 Codes List Free Download OBD Advisor 10. With our Color Match Corvette Touch Up Paint, you can repair minor chips caused by rocks or door dings and scratches with the assurance of factory OE matching color accuracy. Oct 25, 2024 · Witness the mystery of GM OBD-II codes unravel as you delve into the world of cryptic messages and abbreviations that hold the key to your vehicle's secrets. Understanding these codes is key to maintaining engine health and keeping your vehicle running smoothly. Mar 13, 2013 · Codes 21 and 22 mean your getting a reading that is to low voltage (code 22) and to high voltage (code 21) If you have a new TPS in it it could be a wiring issue or like you said a bad ECM. Check for technical service bulletins (TSBs) on your vehicle by make, model, and year. Most GM cars (non classic) made before 1995 are equipped with the ODB1 computer operating system. Every Model Mar 3, 2023 · 21-NA-149 Chevrolet Engine Control System TSBMake: Chevrolet Number: 21-NA-149 Title: Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs Date: 3/3/2023 Models: 2019-2021 Silverado 1500 2019 Silverado 1500 LD 2022 Silverado 1500 LTD 2021 Suburban 2023 Suburban 2021 Tahoe Aug 20, 2010 · FIND THE PERFECT MATCH – Color code is 21 WA7470. 3 oz. 1200-1300 rpm. manuf: GM → model: Buick found 12 paint color chips with a manufacturer of "GM", model of "Buick", make/model/year paint code of "21" sorted by year Buick paint collections: yellow &nbsp red &nbsp blue &nbsp green &nbsp black &nbsp white &nbsp orange &nbsp gold &nbsp silver &nbsp brown &nbsp gray &nbsp pink &nbsp purple &nbsp GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". Code 21 states that the input voltage from the sensor is too high when compared against normal values. GM OBD Trouble Codes Note: See this page for generic OBD-II codes (they start with P0XXX). Buick, Cadillac, Chevy, GMC,and Special Vehicles. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. 5 volts Its a ccc em4e quadrajet, 1986 Monte Carlo Feb 25, 2025 · When your Chevy vehicle experiences an engine issue, your onboard diagnostics system generates diagnostic trouble codes (DTCs) that point to specific problems. If a Let’s dive in! GM OBD2 Codes List and Meaning [FULL] Free Download: Full GM OBD2 Trouble Codes List and Meaning PDF This list applies to GM’s cars, including Chevy, Cadillac, Buick, and GMC. NAPA mixed 3 Chevy Code colors ( # 21, 28 & 35) & we pulled 3 other, near colors off the NAPA mix chart. ) by ExpressPaint combines two paint repair pens into one cost-effective solution for fairly small nicks and scratches . This is TPS sensor high voltage at PCM. GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". Conclusion To sum up, fixing the P0521 code quickly involves a few steps. If a The P25A2 code for Chevrolet indicates an issue with the Brake System Control Module (BSCM) requesting the Malfunction Indicator Lamp (MIL) to illuminate. 3L V6 equipped Buick and Oldsmobile vehicles. In previous model years, the Service Parts Identification (SPID) label, often located in Nov 3, 2021 · This tutorial will help you to test the throttle position sensor (TPS) on 3. GM OBD1 Codes GM OBD2 Codes Please see our generic list of GM OBD2 codes or specific model pages below. Have measured right at the contact to the WSS and from the plug I marked in the picture at the ABS central. The ECM is constantly controlling, adjusting, and monitoring engine conditions. changed tps and cleared code and it didnt help. Be sure to double check the codes. GM OBD/OBD2 Codes >> GM 92-95 C/K Pickup GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". HELP!!!!!!!!!!!! Identification and scaling of J1979 mode 6 test values and limits data available on GM vehicles, for use with a generic scan tool. Sep 10, 2024 · Are There Specific Vehicles More Prone to P0521 Code? Some cars are more likely to show a P0521 code. Regular maintenance can help prevent these issues. If a Apr 14, 2014 · Hi guys, jumped a & b terminals, got code 12, and code 21. All the paint charts here pop up and turn into a gallery. If there is an engine malfunction caused or detected by any one of the many sensors connected to Looking at Code 21 on 1987-95 GM trucks. What do you do when this dreaded light turns on? In every GM W-Body car, there is a computer that controls virtually allaspects of the engine's operation. I am NOT VERY MECHANICALLY INCLINED. In the end, you’ll have the information you need to diagnose your … Oct 18, 2025 · Find many great new & used options and get the best deals for Dupli-Color BGM0539 Light Blue Metallic GM Exact Match Paint 8 oz. Reconnect negative battery cable and recheck codes to confirm the repair. Find all paint codes for General Motors from 1980 to 1989. Testing the TPS involves only 3 tests. Easy to use high quality, fast drying acrylic lacquer formulated to match the exact color of the original factory applied coating . The TPS measures the amount of throttle plate opening or angle and relates this information to the engine computer. The following article will help you decipher GM codes and learn about the meaning of each. Click to learn more! 5Q9 : MOLDING 915, B/S, CUSTOM (SEO) 5R2 : SEAT RR, INTERMEDIATE, DELETION 5R3 : CHASSIS PACKAGE, POWER TRAIN ECONOMY 5R4 : CHASSIS PACKAGE, 110 IN W/B LOW PRO 5R9 : SPEAKER SYSTEM, RR, DELETE 5U3 : COVERING, FLOOR MAT, 10 INCH 5U9 : COVERING, FLOOR MATS, FRT 5V1 : CARRIER, SPARE WHEEL W/O TIRE 5V4 : APPEARANCE PACKAGE, VEHICLE PROVISIONS #l GM OBD1 TROUBLE CODES LIST Compiled bywww. 8. The TPS is a crucial component of the engine control system, as it monitors the position of the throttle valve and sends signals to the engine control unit (ECU) to adjust air-fuel mixture and ignition timing. Whether you drive a Chevy Silverado, Camaro, or Malibu, this guide will help you interpret these codes and take appropriate action ITEM / MFR. 02 volt increments to a maximum reading of about 4. This code indicates that your Chevy Silverado’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. They are called code pulling tools. In addition, we’ll talk about the differences between GM codes and OBD-II trouble codes. If a 7. You can buy a metal tool at most auto parts stores for about $2. CHEVROLET Technical Service Bulletins (TSBs). A key code is a series of alphanumeric characters used by locksmiths to create a key. Is OBDII code C0021 (Brake Booster Performance) an urgent issue that needs immediate attention? - Yes, addressing this code promptly is crucial to ensure the proper functioning of your vehicle's braking system and overall safety. Aug 25, 2024 · The P219B Chevrolet code indicates a fuel trim imbalance in bank 2 of the engine. Code Description Code 12 No distributor reference pulse (diagnostic test active) Code 13 Oxygen sensor circuit open or no General Motors OBD-II Trouble Codes The OBD-II DTC codes here generally apply to all OBD-II GM vehicles from 1996 and newer: GMC, Chevrolet, Buick, Cadillac, and former brands Oldsmobile, Pontiac, and Saturn. The fuel trim values are used by the engine control module (ECM) to adjust the amount of fuel being injected into the cylinders Description, diagnostic and repair information for Chevrolet OBD2-OBDII engine codes | Page 1 | Engine-Codes. The system collects fuel vapors via a canister filled with active charcoal. Just scroll to the year section and click on an image. When diagnosing P219B For 1995-previous model year EFI-equipped GM vehicles. See also: Chevy Check Engine Light @ Check-Engine-Light. Chevy fault codes are unique codes that your vehicle's data processor produces when it detects a malfunction or impairment in your car. obdcodex. If the code is retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code field. All these are identified here. changed ecm no help. If you're looking at the engine code - this is already known. Learn about symptoms, testing methods, and solutions to get your vehicle running smoothly again. Can I prevent OBDII code P21DD from occurring? While some causes of this code may be unavoidable, regular maintenance and prompt attention to any warning lights or unusual symptoms can help prevent issues that trigger this fault code. yjpek hvcp8lt uk9z hbc 3dw tawcnmg tth0 mvxp mvy jhb1s9