HOW CAN I REFLASH A CHERROKEE 4.0 PCM I HAVE IT FOR A 2002 DAKOTA 3.9

asked 2 times>?
Gen 1.
there is no 97, , 97 is july 2 1997 made for1998 year
the wiki tells you that
and the 42RE is there not mated to 3.9L V6 , + 4wd
the PCM will not allow other transmissions.
for sure v8
https://en.wikipedia.org/wiki/Dodge_Durango

no you can not mix these up, the PCM will never allow that.
Transmissions42RE 4-speed - 5.9 L V8


Transmissions

42RE 4-speed TorqueFlite automatic - 3.9 L V6
45RFE 4-speed RFE automatic (2000–2002) - 4.7 L V8
545RFE 5-speed RFE automatic (2003) - 4.7 L V8
44RE 4-speed TorqueFlite automatic - 5.2 L V8
46RE 4-speed TorqueFlite automatic - 5.9 L V8

No. I don't know if the 46RE transmission from the 5.9L Durango will bolt up to the 4.7L in the Dakota (I don't think it will), but more importantly, the Dakota controls its current 45RFE transmission electronically, and the powertrain control module (PCM) in the Dakota controls the transmission through a transmission control module (TCM). Even if you could mechanically get the 46RE installed behind the 4.7L in the Dakota, you'd have to do a lot of major modifications to the electronics to get it to work properly.

Have you changed the ignition switch or PCM recently? The PCM is expecting to receive a signal through the PCI bus that a valid key has been inserted into the ignition switch and read by the SKIM (sentry key immobilizer module) attached to the ignition switch. You need to have the PCM programmed (by the dealer or someone who has a DRB Scan Tool - factory type scan tool), to let it know that you do not have the SKIS (system) installed in your Dakota.

This is a plug and play computer but they reflash them for the VIN# and current mileage if digital speedometers

1. Clean the throttle body bore of carbon deposits using an approved cleaner and a clean rag.

2. Road test to reset the idle learn, recheck.

3. If the same, reflash the PCM, road test.

with no bus, that is power to or from the pcm. try wiggling the 3 plugs at the pcm with the key on. if you see lights change, or hear the bing, that would most likely be the pcm.

Symptom:

P-0753 TRANS 3-4 SHIFT SOLENOID/TRANS RELAY CIRCUITS

When Monitored and Set Condition:

P-0753 TRANS 3-4 SHIFT SOLENOID/TRANS RELAY CIRCUITS

When Monitored: Continuously with the key on.

Set Condition: This code is set if the voltage detected on the 3-4 Shift Solenoid Control

Circuit at the PCM is different than the expected voltage.

POSSIBLE CAUSES

FUSED B(+) FEED TO THE TRANS CONTROL RELAY OPEN

3-4 SOLENOID WIRING HARNESS INTERMITTENT DEF

3-4 SOLENOID WIRING HARNESS OBSERVABLY DEF

SHIFT SOLENOID CONTROL CIRCUIT OPEN

SHIFT SOLENOID CONTROL CIRCUIT SHORT TO GROUND

SOLENOID AND HARNESS DEF (SOLENOID CONTROL CKT)

TRANSMISSION RELAY OUTPUT CIRCUIT OPEN

TRANSMISSION RELAY OUTPUT CIRCUIT SHORTED TO GND

PCM DEF (3-4 SOLENOID/TRANSMISSION)

PCM DEF (TRANS 3-4 SOL/TRANS RLY CKT)

POWERTRAIN CONTROL MODULE DEFECTIVE

POWERTRAIN CONTROL MODULE DEFECTIVE

POWERTRAIN CONTROL MODULE DEFECTIVE

SOLENOID AND HARNESS DEF (SOLENOID PACK CONN)

TEST COMPLETE
TRANSMISSION CONTROL RELAY DEFECTIVE

It is just behind the headlight on the driver side. However I belive 2002 was the first year that the transmission computer and the engine computer where just one computer.

Replace the mass air flow meter.

It is more likely the solenoid, the PCM is very seldom the problem, about 3% of the time to be exact.