This bulletin applies to 2013 Dodge Dart vehicles equipped with a 1.4L engine and the C635 manual transmission. The customer may indicate that they feel an A/C engagement bump during acceleration when ambient temperature is above 90 degrees Fahrenheit, along with a lack of power.
The fix involves selectively erasing and reprogramming the PCM with new software. The wiTECH software level must be at release 13.02 or higher to perform this procedure.
Install a battery charger to ensure that battery voltage does not drop below 13.02 volts or rise above 13.5 volts during the flash.
The following must be performed once the PCM has been reflashed:
a. Select PCM from Vehicle View.
b. Select the Misc. Functions Tab.
c. Set the parking brake and start the engine.
d. Select the “Clear Mis-fire TLC” function and verify that the Misfire TLC has been cleared.
e. Select the “Monitors drop down list and select “OBDII Monitors”.
f. Select the “Mis-fire Mon SWC” screen.
g. While watching the Mis-fire Mon SWC screen, allow the engine to warm up until the coolant temp has reached 140 degrees F.
h. Once coolant temp has reached 140 degrees, perform a 6,000 rpm wide open throttle stab and let rpm return to idle.
i. Verify that the Mis-fire monitor status on the Mis-fire Mon SWC screen has changed from “Waiting” to “In Progress”. If 6000 RPM was not achieved, perform Step H again.
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