Question about 1997 Chevrolet Malibu

1 Answer

DTC P1652 set by PCM after tapping into #2 Cooling fan to install manual switch for operation...

This was AFTER testing everything & coming up empty handed...The switch works GREAT, does what is suppose to do, but w/MIL ON, driving in LIMP MODE isnt WORTH it! Found reversed polarity for the Fan MODE relay (where it plugs in to the fuse/relay center)...Its a 5 pin, so isnt just turned around..anyone know what could cause this to happen? (the switch got put in AFTER finding this issue) What REALLY gets me is, if the PCM notices output voltage CHANGE from the #2 fan circuit and sets the P1652, WHY CANT IT REALIZE THE ENGINE IS HOT & FANS NEED TO BE ON? Love the car, but this is getting ridiculous!

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 45 Answers

Sounds like fan is shorted check fan

Posted on Nov 20, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
leetamara
  • 702 Answers

SOURCE: Cooling fan wont work

The water temp sensor is located near the thermostat housing. This sensor is what tells the ECM to turn the fan on/off. The water temp sending unit is located near the same area. You know you have the correct sensor is because the water temp sensor has a 2 prong plug. The water temp sending unit only has 1 prong.

Posted on Sep 27, 2008

  • 4 Answers

SOURCE: engine cooling fan not coming on

It may be the fan itself. Try to find the plug going to the fan, it should be close to the fan and might plug diresctly into the relay. Use two jumper wires straight from the Bat one from the pos+ side and one from the neg- side and plug them into the two holes in the connector the fan should start WATCH YOUR FINGERS. If it starts its elec prob before the fan if not its the fan.

Posted on Jun 12, 2009

  • 323 Answers

SOURCE: reverse works no forward gears

ask the rebuilder, maybe a warranty item

Posted on Jul 04, 2009

  • 22 Answers

SOURCE: cooling fans not working

Ok might sound stupid but did you check the fuses (maxy fuses 40 amps probably). I propose you to also check the fans grounds if they are not damaged or coroded.If OK then, if the fans work when you feed them electricity, if you're temperature gauge in the car works great, if you're solenoids click and you don't se a cut or worn out wire, then the problem comes from the fact that the PCM does not or can not triger the fans on. It could be that the cooler sensor signal doesn't get to the PCM (improbable since i think the PCM feed the IPC info on the engine, temp, volt ...) it could be the PCM triggers the fan but the signal never gets to the solenoid (open circuit or bad ground) or it could simply be that the pcm never trigger the fans on (internal problem). Start you're engine and start the A\C (it need to be fonctional), if one of the two fans starts, the PCM is ok.
PCM = powertrain control module
IPC = instrument panel cluster

Posted on Aug 06, 2009

outdoorsman5
  • 631 Answers

SOURCE: cooling fans 4 radiator won t come on

You have 2 engine coolant sensors one on front of engine, near thermostat housing and the other on the right side of the engine above the starter motor. You probably need to change the other one.

Posted on Aug 19, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hi guys just want to know the process to rest limp mode for Holden Captiva 2007 petrol


Read out the codes, fix the faults , cancel the codes, test drive if any codes come back the fault is not fixed , it won't come out of limp mode till the faults are fixed.

May 02, 2017 | Holden Cars & Trucks

1 Answer

Hi i have a 2009 diesel x type jaguar when first starting car i have gearbox fault and car goes into limp mode but after 10 minutes driving when you switch off and restart car everything is fine


When the limp home is engaged by the processor a fault code or codes is set in memory, it may be a Transmission code or engine fault code. You nee it tested with a full function scanner, a code reader will not read the transmission faults.

Jan 19, 2017 | Cars & Trucks

1 Answer

Car on limp mode- changed AC compressor-water pump-harmonica balancer- pulliies belt air cleaners-battery was flat all good now went good on test drive next day it went to limp mode after short drive now...


use a fault scanner to reset the CPU program If everything is good it should work . if not the fault codes will reappear and you will know what to fix.

Dec 25, 2014 | AC Cars & Trucks

1 Answer

Traction Control and REduced Engine lights come on while driving and it will decrease to 5mph. wait 15 seconds and it will restart and do it again. Had code read this morning and after the ABS and brake...


If your only able to go 5 mph, your in Limp Mode

You have different strategy on different vehicles

Some are for overheating,most for cylinder misfires,
if it is a type one converter ruining type verse a fixed
or steady MIL Lamp type two,& yours appear to have
a Reduced Throttle situation for a reason

It will be more trans related to protect it, than an abs issue

Instead of what you did,the generic code read thing,you
have to start over with a professional scan tool & get into not
only generic but enhanced data & look at all modules, then
diagnose the codes one at a time, component testing & making
any repairs as you go.

It is not uncommon to throw out half the codes you got, as
that is the unexplained thing that happens

So knowledge,experience & proper professional test tools
are your ONLY Solution, to even finding the MAIN Issue

So-- do you have an abs,trac control,sensor,trans,throttle
control issue,only looking at data will give you place to start
your testing for the cause,no codes require any parts replacement

Have to find a problem-- then the solution

For now you can't use it at all,only go into limp or ruin something

Mar 08, 2014 | Chevrolet Equinox Cars & Trucks

1 Answer

Limp home mode


Recommend you consult with your local certified transmission mechanic. They will have code readers that can talk to the transmission and not just the general codes.

If possible remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan is typically an indication of mechanical failure such as clutches, meaning a rebuild.

If it comes to a rebuild, have yours rebuilt versus a swap out. This way you'll know everything bolts up correctly and you have all the brackets, etc.

Feb 05, 2018 | Chevrolet S 10 Cars & Trucks

1 Answer

Went on trip, drove a little over 500 miles to destination. When went from one freeway to another car seemed to go into a limp mode after slowing to bout 20- 25 mph. I reset by putting it in park turning...


PO456 is most times a gas cap or gasket,
to get an incorrect gear ratio the transmission has probably started to slip.

Change the fluid and filter first off in the transmission and use only atf+4 fluid and possibly the govenor pressure sensor,and change gas cap.

Jun 02, 2010 | 2003 Dodge Intrepid

1 Answer

My Xtype 2.5 Y Reg suffers from a strange fault. After driving on the Motorway for approximatly I hour or more the MIL light comes on the Temp gauge motors to full scale the overtemp light comes on. If you...


1. check electric fan comes on.( this is done by bridging the wires coming from the switch on the rad
2. replace themostat could be intermitant sticking, i am not sure but there may be 2 one in the engine and one in the water pump, depends on the engine set up

Dec 05, 2009 | 2002 Jaguar X-Type

3 Answers

EML, Check Engine, Limp Mode


What is limp mode, and it is MiL light( mal function indicator light)it is not EML. Please specify so i can help

Jul 24, 2009 | 2001 BMW Z3

Not finding what you are looking for?
1997 Chevrolet Malibu Logo

88 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

80339 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...