Question about 1993 Geo Prizm

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How do i fix the overdrive ligh flashing on my 1993 geo prizm? it takes off in 2nd gear in drive but will go into 1st when you put it in that gear

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The overdrive light is flashing because there is a diagnostic code stored in the Transmission control mudule.You will need to have the codes pulled to know where the problem is.The 2nd gear only condition is not a symptom, it is limp mode caused by the code being stored.There are about 30 different problems that can cause limp mode,so there is no way to guess.There is a procedure to pull codes that I can give you if you want to do it yourself.Just let me know,Thanks!

Posted on Mar 25, 2011

  • 3 more comments 
  • jcainmc Mar 30, 2011

    I have same problem, but Meineke tech told me it was the solenoids going out and throwing the O/D light on. How do you read the tranny codes?

  • Donald Britton
    Donald Britton Mar 30, 2011

    What year ,make and model of car do you have?

  • jcainmc Mar 31, 2011

    Sorry, its a 1996 Mercury Mystique. Thanks in advance for any help you can provide. :)

  • Donald Britton
    Donald Britton Mar 31, 2011

    You can take your car to a parts store and they will pull the codes for you.If you will write down the codes and get back with me I will help you diagnose the problem.

  • ronponton
    ronponton Jan 30, 2013

    I'm game. this has been an intermittet problem since I got the car many years ago..

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1 Answer

99 Expedition stuck in overdrive


Chances are there is a major problem with the transmission and what you actually have is a limp mode situation. The transmission can allow you to use 1st and 2nd gears to get you back home or to a garage without causing more damage.

Mar 15, 2016 | Cars & Trucks

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General Motors gear ratios hide] 1 GM Rear Wheel Drive...


General Motors gear ratios
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GM Rear Wheel Drive Transmissions

PTU = Power Transfer Unit (Crossover SUV AWD/4WD)

6 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
MNK Allison 1000
MNZ Allison 1000
MW7 Allison 1000
MYB
MYC

5 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M74 Allison 1000
M22 5L50-E
M82 5L40-E
MTW Allison 2400
MX4 Allison 2000
MX5 5L40-E with PTU*
MV3 5L50-E with PTU*

4 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M30 4L60-E
M32 4L60-E HD
M32 4L65-E
M33 4L60-E Hybrid
M41 4L30-E
M70 4L70-E Super Duty
M99 2ML70 2-mode Hybrid*
MD8
ML4 4L30-E
MN8 4L80-E HD
MN8 4L85-E
MT1 4L80-E
MW9 HM 200-4R
  • EVT Mode 1 The 2ML70 can operate in electric mode or non-electric mode in first gear with a gear ratio of infinity to 1.70:1.
  • EVT Mode 2 The 2ML70 operates in non-electric mode with a gear ratio of 1.70 - 0.738:1

3 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M40
M41
M65
MD2
MD3 HM-180
HM-200C
HM-350
HM-400

GM Front Wheel Drive Transaxles

6 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MH2
MH4
MH6 6T75 (AWD)
MH7
MH8
MY9 6T75 (AWD)

5 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
Aisin-AW 55-51LE
M09 Aisin-AW AF33-5
M43 Aisin-AW AF23-5
M45 Aisin-AW AF33-5
M98 AF33-5
MJ7 Honda 5AT
MJ8 Honda 5AT w/PTU*
MLS Aisin 50-40E
MU3 Saab 76.5mm

4 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MLQ Aisin 81-40LE
Aisin ZF 4HP 16
HM 325-4L
Jatco JF405-E
M10 Jatco JF403-E
M13 4T60-E HD
M13 4T60-E
M15 4T65E
M45 Aisin-AW AF33
M57 A245-E
M76 4T65E with PTU*
MD7 4T65E
ME7 4T45-E BAS Hybrid
ME8
ME9
MH1 4T80-E
MN3 4T65E
MN4 4T40/45-E
MN5 4T45-E
MN7 4T65E HD
MS7 A240-E
MU4 A246-E
MU5 U341-F

3 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
M60 GEO Metro
MB3 A131L
MD9
MX1 A131L
GEO Storm
HM-425

GM Manual Transmissions

6 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M10 Tremec 85mm
M12 Tremec T56
ML6 ZF S6-650
ML9 ZF S6-40
MM6 Tremec T56
MV1 Aisin 85mm
MV5 Aisin D173 AY6
MV6 Aisin 85mm
MZ6 Tremec 85mm

5 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M35 Getrag 260
M35 Getrag 260 (2003-2004 Cadillac CTS)
M49 BW 5spd
M50
M59 GEO Tracker
M86 Getrag F23 75mm
M94 Getrag F23
M96 Tremec 109mm
MA5 Aisin AR5 82mm
MG3 Getrag F23
MG5
M50
M51
MH3 Tremec T-5
MK5 C59
ML2 Tremec T-5
ML3 Tremec T-5
MT8
MU3 Saab F25
MW2
MW3 NV4500 109mm
TR-3450
TR-4050
TR-4050
2007 Chevrolet Optra and Spark (Trans code Y4A)
2007 Chevrolet Optra and Spark (Trans code Y4M)

4 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M20 HM-117
M73 Isuzu
MC0 Getrag
MC9
MY6 NP260

More GM Manual Transmissions

6 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
MT2 Opel F40 83mm
MU9 Opel F40 83mm
MTN Toyota C60

5 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
D-16 (2005-2008 Chevrolet Aveo 1.4 DOHC / 1.5L)
D-16 (2005-2008 Chevrolet Aveo 1.4 SOHC)
Y4A (2007 Pontiac Matiz)
YM4 (2005-2007 Chevrolet Aveo)
D-20 (2005-2007 Chevrolet Epica)
L73 Pontiac LeMans F16
M42 Geo Metro
M43 AF23
M49 BW 5spd
M58 Geo Metro
M79 LeMans F13
M86 Getrag F23 (5T45MI)
M94 Getrag F23
M98 Aisin 55-51E
MB4 Geo Prizm 1.8L
MB5 Geo Prizm
MFB 2008 Chevrolet Epica 5-Speed S/R (D24)
MFN 2008 Chevrolet Epica 5-Speed S/R (D33)
MG1 HM-282
MG2 HM-282
MG3 Getrag F23
MJ1 Isuzu
MK7 Isuzu
MLM Y4M (2008 Chevrolet Aveo 1.6 DOHC)
MR3 Isuzu
MU3 Saab F25
MV2 Chevrolet Sprint
MY7 Early J-car

GM Continuously Variable Transaxles

RPO Trans Name Lowest Highest
M83 V20-E
M75 V25-E
M16 V25-E AWD

on Apr 15, 2015 | GMC Cars & Trucks

1 Answer

I Have a 1993 GEO Prizm that the O/D light is flashing and it starts off I 2nd or 3rd gear.. the codes that was pulled are 26 and 36.. how do I fix this problem?


1.6L or 1.8L? engine.there are 3 engines,
1.6L with one injector and one with 4 and the 1.8L with 4.
and the ecu is different on each.

tell which terminals were jumped. and which lamp flashed?
Corolla - jump DLC terminals TE1 and E1 with a short lead 1

which transaxle.?
A131, A240i, a241h, or A245e, (the e trans is tcm shifted)
The 7AFE engine has the TCM and ECU in same box.
the 1.6L single injector engine runs a pure hydraulic trans.(no TCM)
TCM's engine/trans setups.
the 4speed, has 3 ranges switches, and 3 solenoids. and speed sensors., the MPI engine ecu shifts the transmission the TBI engine does not. MPI has 4 injectors, this your car?

if the OD flashes driving, this means TCM sees errors.
can be bad sensor inputs to the TCM
or bad shifter switch, (really they are sensors too, status switches)
and the TCM can see bad speed sensors.
the TCM can also flash if the solenoids are dead. or transmission slips. (nut shell answers)
IF it skips gears, the TCM may be in limphome, they do that on errors. to protect the transmission for damage.


first, off , prizm is just a toy corolla and those are really corolla

best page on car., but i cant find your codes? are you sure you counted correclty? 26 is too rich running. (fuel ratio) 36 I can not find anywhere, (stumped me)
http://www.troublecodes.net/toyota/toyota-celica-94-95-corolla-93-95/

post vin on car and we can look up what's under the hood.
put xxxx and end of VIN. for privacy.

May 06, 2015 | Geo Cars & Trucks

1 Answer

Shift lock


It could possibly be a bad electrical connection or poor connection with the transmission. Did the mechanic get any error codes?

Nov 08, 2013 | 1996 Geo Prizm

1 Answer

I have a 1993 f-250 u have to manually shift to 1st to take off shift to 2nd and still in 1st gear. Shift to overdrive and transmission will shift through 2nd 3rd 4th and then to overdrive with no problem....


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1 Answer

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1 Answer

Mazda Sentia 929 auto failure


Rebuilt gearbox probably... unfortunately!
If the HOLD light in the in strument cluster is flashing at you, it is giving you a transmission diagnostic code (like a kind of Morse Code). A transmission specialist or a Mazda Dealer will be able to read this code and plug their computer into the cars computer, and tell you what is wrong.

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1 Answer

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Happened to mine ,, Simple solution : Take it to transmission maintenance,, they clean up the mesh and fresh fluid,, will shift properly, will run like new.

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