WebFeb 16, 2024 · Interpreting the Brake Lamp Code Flashes 1, 11, and 12: ECU (engine control unit) Malfunction 2: Open Isolation Valve or Malfunctioning ECU 3: Open Dump Valve or ECU Malfunction 4: Grounded Anti-lock Valve Reset Switch 5: Excessive Actuations of the Dump Valve 6: Erratic Speed Signal 7: Shorted Isolation Valve or … WebApr 2, 2012 · The engine will not run with a "hard" code 12 set; Common Problems: Chances are you will never need to diagnose a code 12. Rather, the problem would be a crank, no-start condition. If code 12 does not flash, that would indicate a communication problem with the ECM. Code 12 does not show when reading codes with a scan tool.
GM Code 12 No Distributor Pulses - FreeAutoMechanic
WebApr 7, 2024 · How to fix code 32 and 35 on a 95 GMC 1500 Break & Fix Garage 71 subscribers Subscribe 63 Share 8K views 1 year ago DUNCAN I've noticed there aren't a ton of videos out for this truck … WebTrouble Code 35 indicates a problem with the Idle Air Control (IAC) circuit. It will be set when the closed throttle engine speed is 200 RPM above or below the desired (commanded) idle speed for 50 seconds. Possible causes include: Vacuum Leak (High Idle) - Also check … kitty cafe nottingham reviews
How to fix code 32 and 35 on a 95 GMC 1500 - YouTube
WebFeb 17, 2024 · The most common cause of flashing or blinking check engine light is a misfiring engine, which can be caused by several different engine issues. Ideally, you will want to troubleshoot the vehicle and check the DTCs to find out what’s causing the issues. For now, here are four possible causes worth considering. 1. Misfiring Engine WebMay 17, 2012 · How to read DTC codes on my 94 C1500. Jump to Latest Follow 1 - 7 of 7 Posts ... 78 Silverado Big 10 w/factory 454 00 S-10 Blazer 1976 Trans Am 2008 Harley Davidson Heritage Softail Classic. Save Share. Reply Quote. 84fiero123 ... 35 Posts #5 · Nov 3, 2011. Only show this user ... WebWhen in this mode, the ECM will begin by flashing code 12 (on the lamp) 3 times. This indicates the beginning of a diagnostic sequence. It will then flash any codes stored in … maghrib prayer time regina