Question about 1999 Saturn SL

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How to fix a code P1651 Quad Driver Module B Quick Set Detected A Fault on a 1999 saturn

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This is very likely a failed PCM module and will need a replacement

Posted on Sep 13, 2009


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It's a 1995 Saturn sl the clutch on ac compressor kicks on with direct power the engine fan also changed relays still get the code 26 quad drive modal need some help

This info is from 1998 Saturn Sl , my service info doesn't go to 95 . It's the same except for code numbers , My info is P0xxx #'s . The quad driver is part of the ECM - engine computer !
Here is a description from Saturn service info .
A quad driver module (QDM) is an electronic switch which completes a ground circuit when switching ON. The QDM independently controls 4 separate outputs. A load is connected between battery voltage and the QDM allowing the QDM driver to control the output. Each QDM has fault detection logic which compares QDM driver input and output voltages. The logic expects to measure less than 3 volts when the QDM driver is ON and greater than 7 volts when OFF. The QDM has only one fault line that will detect a fault on any of the 4 outputs. The scan tool can be used to cycle the outputs ON or OFF. The scan tool can also perform an automated test which can isolate the faulty circuit.
The quad drive it self may be bad , GM had a problem with these !
Did you check fuse's ?
Conditions for Setting the DTC
DTC P01650 and/or P1651 will set if:
There is an open, short to ground or short to voltage on any of the QDM output circuits

MIL (SERVICE ENGINE SOON) telltale circuit

Upshift lamp circuit

Cooling fan relay circuit

A/C relay circuit

Fault detected for 5 seconds for DTC P1651. Fault detected for 20 seconds for DTC P1650.

Important: The QDM circuit is continuously checked when the engine is running.

May 18, 2015 | 1995 Saturn Sl

1 Answer

Codes trouble olds engine troublecodes

quad driver A fault
ECM module have input and ouput, quad driver are there to activate a solenoid or relay
quad driver A drive a few of those output
example quad driver A control canister purge solenoid and the solenoid is defect . the quad driver will kick off until you change the solenoid
there is two kind of driver 1984 to will reset if trouble is repair
the other one is the ecm module itself have to be change after is repair .....(quad driver act has a driver or big fuse)

Oct 18, 2013 | 1992 Oldsmobile Cutlass Ciera

1 Answer

97 pontiac firebird 3.8 trouble code p1651 how to solve this problem

Google the code to find out the system with the fault

Don't know why you would be frustrated,these systems
have been on all vehicles for over 30 years,nothing new there

Feb 28, 2013 | Cars & Trucks

1 Answer

Quad driver module computer circuit #2 fault ?

I will start by pinout check current + to ECM and - ground there is many .
A Quad driver work like a big fuse d?pends some are resettable and other not reset(ECM defect) if it is so then you have to check all solenoid not short to ground before replacing ECM it will burn without checking the solenoid
hope it help

Feb 08, 2012 | 1988 Oldsmobile Delta 88

1 Answer

The code P-1651 and 1650 come on on my Saturn SC 1 auto. Does any body know WHAT that code means ? The light is itermitent, some times it stays off for 60 miles some time comes back on in 6 feet . Thanks...

p1650 and p 1651 are quad driver module codes the quad driver controls 4 outputs hence the name quad they are the1 cooling fan circuit
2 a/c clutch
3ses light(service engine soon)
4and shift light

if any of these issuses are malfunctioning they will set the codes you are talking about, the sneaky thing is that if the ses bulb is bad in the instrument cluster it will set the code as well. hope this helps

Feb 05, 2011 | 1997 Saturn SC

1 Answer

Ses light on code 26

code 26 quad-driver module (computer) circuit #1 fault
replace the computer.

Apr 10, 2010 | 1994 Saturn Sl

1 Answer

Have 95 saturn sl with code 26 and 27 quad driver

well the quad driver may not be at fualt and most likely is not.

there is a fualt line that the computer uses to monitor for fualts but the thing is one line monitors four different things and the code is to get you in the general area but not to the exact fualt. so from here you need to test for failed components. that code and the quad driver monitors the a/c , evap solniod , egr solenoid and coolant fan relay. the fan relay and egr are the most common i see all the time. and with you having an isssue with that coolant light i want to say check the fan circuit.

let me know if you have more question thank you and good luck

Nov 26, 2009 | 1995 Saturn Sl

1 Answer

Codes 1640 1641 1650 1651

P1640 Driver 1-Input High Voltage

P1641 FC Relay 1 Control Circuit

P1650 Driver 2-Input High Voltage

P1651 Fan 1 Relay Control Circuit

Feb 09, 2009 | 1997 Saturn SL

1 Answer

We have a code of p1650 and 1651 can u help us with what to replace to get ride of them

P1650 Saturn Cooing Fan Relay Circuit Fault

P1651 Saturn Fan On Relay Control Circuit/Output Driver Module (Quad Driver) 'B' Quickset Fault (Saturn)

Jan 23, 2009 | Saturn SL2 Cars & Trucks

3 Answers

1992 saturn coupe 4 cyl motor twin cam

that code is your egr valve or your egr solenoid.sometimes you can remove valve and clean thoroughly with brake cleaner for a cherap alternative.

Sep 22, 2008 | 1992 Saturn SL

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