OBD p1242 ,p0703,p0702 grand cheeroci

Question edited for clarity

The ECM and the engine need to be from the same vehicle and then the ECM needs programming with your VIN Number and your mileage.

Code U0100 What Does the U0100 Code Mean? DTC U0100 stands for "Lost Communication with ECM/PCM 'A. '" It is triggered once there is a loss of communication between your PCM and a particular module. Once this happens, the vehicle may shut off and it may not restart unless you address the issue triggering the code.May 2, 2021

U0100 Code: Lost Communication with ECM/PCM "A"

https://www.carparts.com > blog > u0100-code-lost-comm...
Search for: Code u0100

P062f - generic PCM eprom code, means the pcm either has an internal fault, or its internal memory is well and truly scrambled.
https://www.google.com/search?q=2010+Suzuki+Kizashi+SE+P062f

P0703

P0703 OBD-II Trouble Code: Torque Converter/Brake Switch ...

https://www.yourmechanic.com > Articles
P0703 Code means the PCM has registered a fault in the brake switch B circuit due to failed brake lamp switch, faulty fuse or socket.

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no engine options stated, now THAT is a challenge, x100.
4.0L or 4.7L?? 3.1L, 2.7L AND 4.7HO (EXPORT)
ASKING WITH OUT ENGINE TYPE IS HOPELESS. !!!
i Just wing it, and try to guess.
this is not the Diesel engine , right? is this a USA car or export?
this is a USA site so we must ask that. (nobody does but...must)

the FSM covers this, the factory service manual.
45RFE and 545RFE automatic transmission
the p07 are all transmission errors from the TCM brain.
p04xx is EGR, failure, so skip that. for now.
a/t limp means the TCM , see's gross errors. why it does, takes TESTING. by a technician,
not Gue$$ing, .


here is book for 2002. (USA only, ok ?)
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

see emission page for all DTCs.
700, 702 and 703
702 is not listed, is that a non USA market engine?
i see lots of posts on 702 or Diesel , why is that? and missing in the gas, FSM i have. ??????
700 means ,Ive got tranny errors see others for why.
703 is brake lamp stuck on failure.
579 --
Cruise control system inoperative 1130
P1130 Oxygen Sensor Circuit Low Variance (Bank 1, Sensor 1)
my guess is this is the first scan in 10 years. and all those codes
are antique? reset the PCM and drive and see the codes that
are real for NOW.
(all cars do that after writing them all down as you did)

2125 (not in my usa FSM oddly)
but googling finds one diesel here.
Throttle/Pedal Position Sensor/Switch "E" Circuit

that is all i can do , with
NO COUNTRY STATED
NOR which of 5 ENGINES USED .
sorry !

p0340 cam shaft position sensor malfunction,P0700 Transmission Control System Malfunction, P0703 Torque Converter/Brake Switch B Circuit Malfunction,
P1652 P 1 6 5 2 OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering O2 Sensor Heater Circuit Malfunction Turbocharger Boost Sensor A Circuit Low Crankshaft Position Sensor A Circuit Low Input

You're in LIMP MODE, the system is preventing any further damage to your car by limiting the speed insisting that you see a service center ASAP.

I see a P0702
17086/P0702/001794 Contents [hide]

• 1 17086/P0702/001794 - Transm. Control Module Electrical Malf. (SAE) or Control Module Defective (VAG)
  • 1.1 Possible Symptoms
  • 1.2 Possible Causes
  • 1.3 Possible Solutions

17086/P0702/001794 - Transm. Control Module Electrical Malf. (SAE) or Control Module Defective (VAG) Possible Symptoms

• Malfunction Indicator Light (MIL) active

Possible Causes

• Control Module faulty

Possible Solutions

• Replace Control Module

Hello,
need somebody to explain me,how to repair my jeep grand cherokee that this default code P1242. The is heavy, diffcult to move forward, after using the drb3 i found this dtc in pcm system and transmission system.
many thanks!

P0700 Transmission Control System Malfunction
P0730 Incorrect Gear Ratio
P0620 Generator Control Circuit Malfunction
P1130 Not found
P0340 Camshaft Position Sensor Circuit Malfunction

P0702 Transmission control system electrical

CODE PO702 TRANSMISSION CONTROL SYSTEM ELECTRICAL.POSSIBLE CAUSE WIRING OR TCM. / CODE PO836 FOUR WHEEL DRIVE SWITCH CIRCUIT MALFUNCTION. / CODE P2310 IGNITION COIL D PRIMARY CIRCUIT, CIRCUIT HIGH, INJECTOR CYLINDER 1 IMPLAUSIBLE SIGNAL./ CODE P240D MANIFOLD ABSOLUTE PRESSURE SENSOR B, TC SYSTEM RANGE PERFORMANCE PROBLEM.POSSIBLE CAUSE INTAKE EXHAUST LEAK,HOSE CONNECTIONS MAP SENSOR FAULTY. HAVING TOO MANY CODES COULD BE FAULTY PCM.

Hello my friend from Italy. I have exactly the same problem. Since it happened to you 1 year ago, I hope you solved the problem. Can you tell me what was the solution. Please write to me at: . Thx

Transmission Control System Electrical=P0702 code,
Have you talked to a jeep dealer yet,
Ask if there are any TSB's on this problem.
Technical Service Bulletins from Jeep when they find and solve different complaints.
What ever is doing this is a soft code,A soft code is one that will clear it's self with the cycle of the key to off then on and code goes away,But have them check history codes to see if it is there.it sounds like it is going into limp mode,this feature is when the computer sees a transmission falt it wont up shift,so you don't harm the tranny,but will let you limp to a shop to get repaired.have you ever noticed the speedometer going to 0 then this happens?
that would be the output sensor.