Code 26 quad driver module 1 circuit

Download Driver Here --> https://tinyurl.com/2amtde2e (Copy and Paste Link)

 · What means code quad driver module circuit? - Answered by a verified Buick Mechanic. We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled www.doorway.ruted Reading Time: 3 mins.  · news is this is called a "QUAD" driver. That means it drives four devices. Even worse, there are usually TWO quad drivers, so you have a total of EIGHT devices to check for just this one SES light. That's right, code 26 means that one of 8 devices (and a 9th, the driver itself), could cause the problem. You have to check 8 different things. Probable causes.  · Code # Coolant Temperature Sensor Circuit Low. Got a code 26 on my 93 firebird trans am it is the evap it is always runnin and causein car to run bad how do I fix. Its a code 26, quad driver module fault 5 people found this helpful. Mark helpful. Quad-Driver Module (QDM) #1 circuit applies to: AIR pump relay circuit - EGR solenoid - EVAP.

SC2. Re: CODE What is a "Quad Driver Output Module"? Light bulbs, EGR, Evap are all possible. EGR is a 26+32 if solenoid open circuit or disconnected. So, EGR solenoid is not likely the problem as the normal failure is open on a solenoid. Don't forget the FAN and A/C relays. Code 26 is for the quad drivers inside the ECM. In most cases, it is the ECM that is the issue but must be confirmed. I attached a wiring diagram for you as well. Verify power to the fuses on both sides for the ECM. Roy CIRCUIT DESCRIPTION: The PCM is used to control several components such as those in the wiring diagram above. 13, Posts. #4 · . Only show this user. Your scanner is not giving you the correct definition. Acording to the official published DTM lists from GM code 26 is only quad driver for 93 cars. In its the evap code. And to me that makes sense because the 93 uses a completly different computer set up than the Quad driver.

Quad-Driver Module (QDM) #1 circuit applies to: AIR pump relay circuit - EGR solenoid - EVAP solenoid. 3 people found this helpful. Mark helpful. 2 Jul Code 26 QDM 1 means the ECM has seen a shorted condition in a circuit connected to QDM 1. It is not the fault (usually) of the ECM. You must. By Roy, BAT Auto Technical Probably not but, if the vehicle is early gm and has a constant check engine light with a quad driver fault code.