P0193 is a generic OBD-II code that can occur in the Jeep Wrangler. It indicates that your Wrangler’s fuel rail pressure sensor is sending a signal to the PCM that is above its normal operating range (in terms of voltage value). While P0193 is a generic code (it has the same meaning for any vehicle … Read more
P1128 is a manufacturer-specific troubled code. In the case of the Jeep Wrangler, it indicates that the engine did not enter “closed-loop” fueling on the bank 1 side. If any other codes appear with P1128, start with them since this code does NOT indicate what has caused the engine not to go into closed-loop operation. … Read more
P0523 is a standard OBD2 trouble code that can occur in the Jeep Wrangler. In layman’s terms, it indicates the signal from the oil pressure sensor is higher than its normal operating range (in terms of voltage). P0523 is generic (it has the same definition for all vehicles), repair steps will depend on your Wrangler’s … Read more
P0705 is a very common transmission-related trouble code that can occur in the Jeep Wrangler. In layman’s terms, it means that your Wrangler can’t tell what gear you’ve selected, which can have some real consequences on how it drives. It’s most likely caused by a bad Transmission Range Sensor (TRS), but there are other causes … Read more
Chrysler-made vehicles, such as the Jeep Wrangler, commonly use an oil pump with a high-pressure mode and a low-pressure mode. P06DD is stored in the PCM’s (powertrain control module) memory when the engine is stuck in low-pressure mode. P06DD is a very common code to find in the Wrangler. P06DD can be caused by a … Read more
Daytime running lights (or DRL) are specialized lights that come on when your Jeep Wrangler’s regular headlights are turned off. Their purpose is to make it easier for other drivers to see you, theoretically decreasing the odds of getting into an accident. If your Wrangler’s DRL warning light is on, the powertrain control module (commonly … Read more
P2271 is a generic DTC trouble code that can affect the Jeep Wrangler. It indicates that the oxygen sensor located on bank 1 in the second position is continuously sending voltage with a value that is too rich. There are oxygen sensors on both sides of the catalytic converter. The “upstream” one is used for … Read more
P2279 is a generic OBD-II code. It indicates there is a vacuum leak coming from your Jeep Wrangler’s air intake system. While P2279 is a generic code (it has the same definition for the Wrangler as it would any other vehicle made after 1996), repair steps will vary based on model year and engine. The … Read more
P0605 is a relatively rare OBD-II trouble code that can occur in the Jeep Wrangler. It indicates that PCM (powertrain control module) is not passing its ROM (read-only memory) self-test when you turn the ignition on. While P0605 is a generic code (it has the same meaning for any car or truck), it is most … Read more
P0116 indicates that your Jeep Wrangler’s engine coolant temperature sensor is sending a signal to the PCM (powertrain control module) that is outside of its normal operating range (in terms of voltage). While P0116 is a generic OBD2 code (it has the same definition for any car or truck), it has the same basic causes … Read more