Question about 2002 Chrysler PT Cruiser
Did the On board diagnostic system check. The 2 codes that came up were P1684 and P0700. What do theses codes mean?
Hi Rich Stuck,P0700 means Transmission Control System (MIL Request),P1684 means Battery Disconnected within last 50 starts.More read Diagnostic Trouble Code Table ,hope it can help you.
Posted on May 20, 2014
DTC P1684 means Battery Disconnected within last 50 starts
DTC P0700 if the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700
Posted on Dec 08, 2012
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Posted on Jan 02, 2017
P0700 - Transaxle Control System Fault
The P0700 code is for information only and the next step is to check for transaxle codes in the Transaxle Control Module (TCM). So you'll have to have the dealer or another qualified shop/technician pull the transaxle codes from the TCM and go from there.
P0740 - Torque Converter Clutch Circuit Malfunction
P0601 - Internal Control Module Memory Check Sum Error
What does that mean?
Basically that means that there is an interal fault in the Powertrain Control Module (PCM). There have been many reported PCM failures on Chrysler/Dodge products although it is possible for this to happen on any vehicle. In Dodge/Chrysler products, a P0601 trouble code means that a serial communication failed inside the computer at least 6 times.
Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light. Typically the engine runs fine, gauges work, etc.
A code P0601 in most cases means the PCM has gone bad. This is possibly due to a short-circuit inside the PCM. Or, if you disconnect the wires/connector from the PCM while the battery is still connected, that may also cause this code.
With a P0601 OBD-II trouble code, the most common fix is to replace and reprogram the PCM. In a few cases the dealer may be able to reflash the PCM and get it working. But more than likely the PCM will need to be replaced and reprogrammed (we recommend you take it to a dealership for this). The good news is it *may* be covered under your emmissions warranty. So even if you're out of bumper-to-bumper warranty or powertrain warranty, check your warranty guide or dealer to see if this is covered.
Other people have reported that they cleared the code only for it to return again and again. Keep in mind that most shops can replace the PCM but not all can program it.
Posted on Jun 02, 2010
the PO700 code is a generic transmission code. You would need access to a proper scan tool to check for transmission codes. However if you speedo isnt working, it sounds as though you have a bad output speed sensor. This part runs about 60.00 from the dealer, and is fairly easy to install. No speed signal will put the transmission into limp mode, and keep it stuck in 2nd gear.
Posted on Nov 17, 2009
302 is misfire on cylinder 2. Please see my tip at http://www.fixya.com/cars/r6715318-causes_gasoline_engine_misfires .
1684 is battery disconnected, which you caused when you disconnected it--you can ignore that. You probably have an intermittent misfire. Please follow my troubleshooting steps and let me know if you have questions.
Posted on Dec 01, 2010
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