tranny on 2005 dodge ram 1500 5.7l hemi not shifting


Asked by Aug 11, 2015 at 11:11 PM about the 2005 Dodge Ram 1500

Question type: Maintenance & Repair

immediately after I hit pothole tranny not working.rpms reved .I changed the cooler filter and primary screen.fluid was clean.just bam after pothole ,codes came up po700..po888..I BEEN ASKIN FOR HELP ON THIS SITE FOR WEEK AND NO ANSWER. I REALLY NEED HELP ..PLEASE ..THANKYOU

1 Answer


Check your transmission control module, The bump may have jarred the connection. The transaxle Control Module (TCM) monitors the malfunction of sensors and actuators relating to transaxle control. When the TCM detects a malfunction with the control, a signal is send to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code and it means the TCM detected a malfunction with the transaxle controls. Secondly the p0888 code is also letting you know about a possible short within the TCM, Inadequate Transmission Control Relay Output voltage can also cause DTCs P0846, P0869, P0871, P0876 or P0988 to set. This does not indicate an internal transmission or solenoid TRS problem. Repairing the P0888 fault should also eliminate the related DTCs. This code is set when less than 3 volts are present at the Transmission Control Relay Output (switched battery) terminals at the Powertrain Control Module (PCM), when the PCM is energizing the relay. So... Check your connections. If all is good replace your TCM and you should be up and running.

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