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post #1 of 4 (permalink) Old 07-11-2016, 02:14 AM Thread Starter
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Transmission problem

2007 Jeep Commander V6 turbo Diesel (OM642) with quadradrive ii here in Australia.
After a long drive towing a van, stop at home and then restart the engine to get 'service 4wd system' error straight away. No need to flip the low range, I get this error soon as I turn ignition on.

Checked codes and get - P0700 'Transmission Control System Malfunction' and U0114 'Lost Communication with four-wheel drive clutch control module'.


Any help would be appreciated.....!
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post #2 of 4 (permalink) Old 07-11-2016, 09:57 AM
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Check for blown fuses, at least it is something easy you can do yourself. When I've seen "Lost Communication" codes, its either because the module was removed or a fuse is blown to the module disabling it.
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post #3 of 4 (permalink) Old 07-12-2016, 07:42 PM Thread Starter
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So I have checked every single fuse on the vehicle - all Ok
I have tried the fuse pull for the N23 trick - did not work.
I have checked 12 and 5 volts at the plug into the solenoid - Ok
I have check 12 volts going into the FDM - all Ok
I have taken out the selector PC board and cleaned it - all Ok


Can it simply be the solenoid drive itself not engaging or working at all?
Is there a way to check these units for proper operation?
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post #4 of 4 (permalink) Old 07-14-2016, 09:01 PM Thread Starter
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Is there anyway of checking the correct operation of the actuator in or out of the vehicle?
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