Q: 2005 Jeep Wranler Sport - showing P0700 code - how do I differentiate betwen a PC or transmision problm>

asked by on July 21, 2017

Code P0700 (as well as codes 1604, 0073 and 0613) are coming up on my 2005 Jeep Wrangler Sport. The automatic gears sometime stick in second gear. Can you advise whether it sounds like it is a PCM or transmission problem and how do I find out which one it is? How would I test a PCM to see if its working or, alternatively are there any test for the transmission that would prove the PCM is faulty and not the actual gearbox? Many thanks, Heidi

My car has 100000 miles.
My car has an automatic transmission.

Check Engine Light is on Inspection $94.99 - $114.99 Get a Quote

Hi there. P0700 is set when the PCM detects a malfunction in the transmission control system. This malfunction causes the vehicle to set a Check Engine Light and trigger a failsafe mode. Once the failsafe mode is set it will remain until the fault is repaired or normal operation is detected. The best way to determine whether this is a TCS malfunction or due to mechanical or electrical glitches is to have a professional mechanic come to your location to complete a check engine light inspection. When they arrive, they can download all stored codes and manually test all systems to pinpoint the root issue.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Car squeaks when going over bumps.
I would start by having your suspension system inspected by a YourMechanic technician. It is possible that one of your ball joints or tie rods had dried up. The technician will use an automotive stethoscope to find the source of...
Advice on which type of gas to use
If you look at your fuel gage, it will say "premium fuel only". The vehicle was designed to only run on this fuel. If you try and run the lower grade fuels, you will run the risk of damaging the...
Why wont my car start?
You should try testing the battery (https://www.yourmechanic.com/article/how-to-check-a-car-battery)first. Verify it's good and at least 75% charged. Because your car has a PassKey theft deterrent system, a faulty ignition lock cylinder (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-lock-cylinder) can cause this on your '95 Monte Carlo. There should...
Ac compressor clutch isn't engaging on high fan speed setting while it engages on the prior three fan speeds which are all slow.
The blower not working is most likely due to a fault with the blower resistor. When you go to high blower speeds the A/C may disengage the compressor if the cycling switch cycles or the high pressure switch gets over...
Car stalls after water pump, timing belt, plugs, valves replacements
Many different systems can cause a stalling malfunction on your vehicle. The most common are a fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement), spark plugs (https://www.yourmechanic.com/services/spark-plugs-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), wiring fault or a crank (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement)/cam sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement). If the timing belt (https://www.yourmechanic.com/services/timing-belt-replacement)...
Yukon Denali Sun Roof Leak Repair
Yes, it is possible to replace just the rubber seal without replacing the entire sunroof. This can be a tricky process to replace. I would suggest having a certified expert, like one from YourMechanic, come to your home to inspect...
Changed catalytic converter, no lights on dashboard, but codes for catalytic converter & O2 sensor still remain
Hello. If you have changed these parts and if the check engine light is not on but the codes remain then you should drive the vehicle for a while. it can take about 500 miles for them to clear. If...
Car won't start with a new battery, but it starts when I hook it up with jumper cables.
This problem may be due to a faulty starter relay or a bad ground connection. As you may know, the starter relay directs power from the battery to the starter. When the starter relay does not function correctly, in some...
Charging
Hello, It sounds like you may have faulty voltage regulator that may not be allowing the alternator to charge the battery properly. The voltage regulator is a unit that regulates the charging of the battery by the alternator (https://www.yourmechanic.com/services/alternator-replacement) and...

Related articles

A Buyer’s Guide to the 2012 Jeep Grand Cherokee
Though Though the Jeep Grand Cherokee is not a new model, it got a complete redesign in 2011, and the 2012 Jeep Grand Cherokee saw even more improvements. While other SUV manufacturers have sat on their laurels, Jeep has done...
2012 Jeep Grand Cherokee vs. 2012 Dodge Durango: Which One Should I Buy?
Medium to large SUVs are a fun class of vehicles: plenty large enough for moving people around, but if you really want to get out there in the mud and have some fun, they are still good for that type...
Top Five Selling Cars in Colorado in 2012
Colorado Colorado offers a varied climate depending on where drivers are located. Those in lower elevations see plenty of sunshine all year, while those in the mountain areas can see as much as 300 inches of snow. Due to this,...