2022年3月11日 · This guide demonstrates how to gather diagnostic trouble codes and their definitions for GM manufactured vehicles made before 1995. Most GM cars (non classic) made before 1995 are equipped with the ODB1 computer operating system.

2024年3月21日 · Do you have a GM vehicle between 1980 to 1995? If so, there is a big chance your car has an OBD1 connector (ALDL). This connector is unique and applies to Pontiac, Chevrolet, GMC, Oldsmobile, Cadillac, and Buick, and more. The positive thing with the OBD1 connector is that you can read the trouble codes at home without any diagnostic tools.

Code Description Code 12 No distributor reference pulse (diagnostic test active) Code 13 Oxygen sensor circuit open or no

With our complete list of OBD1 codes, you can gain the knowledge and insights needed to decipher GM OBD1 codes, empowering you to take control of your GM car’s health and performance. Towards the end of the article, you can perform a self-diagnostic test with or without a scanner, and learn how to read the trouble codes, interpret them, and ...

GM OBD1 TROUBLE. CODES LIST. C o m p i l e d b y. www.obdcodex.com. Code 12. System OK ( Diagnosis. mode active ) Code 13. Oxygen O2 Sensor. Circuit open/no activity. Code 14. Coolant Temperature. sensor. Resistance too high or shorted circuit. Code 15. Coolant Temperature. Sensor. Circuit low or open Code 16. Direct ignition system

2005年4月28日 · INNOVA 3123 GM OBD1 Code Reader . Safely and easily access the on-board computer to read ECM and ABS codes on most General Motors vehicles (domestic cars & trucks) from 1982 to 1995.

In this comprehensive guide, we will explore the complex wiring system found in GM vehicles, specifically focusing on the OBD1 connector pinouts. By decoding these pinouts, mechanics and car enthusiasts can gain valuable insights into the inner workings of …

This document lists GM OBD1 diagnostic codes, their meanings, and related fault locations. There are over 70 codes listed ranging from issues with sensors like oxygen sensors, throttle position sensors, and coolant temperature sensors to transmission problems, ignition issues, and …

2022年6月11日 · Most GM vehicles, such as Cadillac, Buick, Chevy, Pontiac, GMC, and Oldsmobile, have the OBD1 connector situated below the steering wheel, under the dash. The connector usually has a black plastic cover, which you have to remove before accessing it. Besides, the connector is also typically black and comes with 12 pins on it.

To write this article, we consulted several reliable sources on how to check OBD1 codes as below: OBD-Codes, How to read GM 2-digit OBD codes for free. 2CarPros, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, and GM – 1983 to 1995 OBD1 code definitions and retrieval method. Do Not DPF Delete, 2019, How to check OBD1 codes with a paperclip.