GM OBD1 code 12? It means your engine's RPM signal isn’t detected during cranking. Common causes include a faulty crankshaft position sensor, defective wiring, or a malfunctioning ignition module. Haynes Manuals helps you diagnose and fix the problem step by step. Find your GM manual today at haynes.com. #HaynesManuals #HaynesShowsYouHow #GMRepair | Haynes Manuals
0:48
GM OBD1 code 12? It means your engine's RPM signal isn’t detecte…
2.1K views10 months ago
FacebookHaynes Manuals
4 Best OBD1 Code Readers Review for 2025
0:51
4 Best OBD1 Code Readers Review for 2025
May 29, 2019
obdsolaris.com
How To: Pull Codes Without Scanner
1:04
How To: Pull Codes Without Scanner
38.3K viewsNov 6, 2015
YouTubeThatOneVideo
EASILY Read FORD OBD1 Check Engine Light CODES (1980-1995) WITHOUT A SCANNER... (i.e. Code 51)
5:06
EASILY Read FORD OBD1 Check Engine Light CODES (1980-1995) …
33K viewsMar 17, 2022
YouTubeVanpocalypse
Innova 3120 OBD 1 & 2 Code Reader
4:39
Innova 3120 OBD 1 & 2 Code Reader
11K viewsOct 19, 2010
YouTubeDevilDogTools
This Cheap Scan Tool Changes Everything
10:40
This Cheap Scan Tool Changes Everything
1M viewsFeb 10, 2020
YouTubeScotty Kilmer
DIY GMT400 OBD1 Scanner Under $20
14:03
DIY GMT400 OBD1 Scanner Under $20
10.1K viewsJun 5, 2023
YouTubePixelDab
5:27
Read ALL 1980-95 GM Ford Chrysler Toyota OBD1 Engine Light Codes …
15.9K viewsJun 29, 2021
YouTube𝐃𝐞𝐫𝐞𝐜
What GM OBD1 Code 12 Means And How To Fix It
1.2K views10 months ago
YouTubeHaynes Manuals
11:09
GM OBD1 tuning with Moates APU1 Autoprom - burning 27SF512 chips
12.4K viewsJul 13, 2021
YouTubeGEARHEAD dezign
Autel For The Win (factory radio Theftlock reset)
69.5K viewsJun 6, 2020
YouTubeScannerDanner
2:55
GM ABS Trouble Codes
154.2K viewsJan 21, 2015
YouTubehoohoohoblin
18:57
OBD-I Scan Tool Review
11.2K viewsJun 18, 2021
YouTubeBits of Wisdom
7:32
GM Truck DTC Code 32
66.5K viewsSep 5, 2016
YouTubeFarmboy's Garage
14:13
Foxbody Mustang Innova OBD1 Code Reader
13.4K viewsSep 11, 2018
YouTubeMetalcop
2:51
Ford OBD1 Diagnostic Codes
128.7K viewsJul 29, 2013
YouTubeFordsRule351
19:40
Basic LT1 Tuning (Part 1): Getting Started
61.9K viewsOct 25, 2018
YouTubeJunkRacecars
11:06
GM Class 2 Network Diagnosis Tips
111.6K viewsJul 18, 2018
YouTubeTrained by Techs
2:20
How to Use an OBD-II Scanner
576.9K viewsAug 2, 2018
YouTube1A Auto: Repair Tips & Secrets Only Mechanic…
1:35
Toyota camry OBD scanner diagnosing
140.8K viewsMar 31, 2016
YouTubeAliMECH
5:02
Launch Code Reader Scanner 6001 Full OBDII/EOBD Diagnostic
1.5K viewsAug 22, 2017
YouTubeEBPMAN Tech Reviews
11:24
OBD2 Explained - A Simple Intro [v1.0 | 2019]
305.1K viewsJul 19, 2017
YouTubeCSS Electronics
18:26
3 Ways to Diagnose your BMW (+Foxwell Scanner Review)
49.8K viewsAug 10, 2021
YouTubeThe Bimmer Barn
8:45
How to scan OBD1 port yourself 1994 Chevy K1500
19.3K viewsFeb 12, 2016
YouTubeH&H Automotive Mods
7:46
OBDII Scanner Connector Replacement Step by Step Actron …
86K viewsOct 7, 2016
YouTubeKeith Noneya
2:15
Retrieving OBD Codes - 1994 Chevy C1500 350 TBI
64.3K viewsNov 26, 2016
YouTubeMoe C
2:32
How To Read Older GM OBD Diagnostic Codes
26.6K viewsJul 12, 2019
YouTubeTattsForLife
0:20
Actron GM Diagnostic Code Scanner - Pep Boys
6.6K viewsSep 18, 2014
YouTubePep Boys Auto
8:52
How to Read OBD1 Codes on Pre-96 Ford F150
209.9K viewsNov 17, 2020
YouTubeMinute Masters
4:43
How to Use an OBD-II Scan Tool
2.3M viewsMay 18, 2012
YouTubeCar and Driver
See more videos
Static thumbnail place holder