20 Most Recent
Questions & Answers
What's your problem?Home > Cars &
Generic OBD Error Code Details for P0798
Pressure Control Solenoid "C" Electrical
What does this mean?OBD Code P0798refers to
The Engine Control Module (ECM) uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical troubles of the shift solenoid valves and valve body.
SymptomsPossible sumptoms of OBD code P0798
- Engine Light ON (or Service Engine Soon Warning Light) - Shift shock
CausesPossible causes of OBD code P0798
- Low transmission fluid level - Dirty transmission fluid - Faulty pressure control solenoid valve - Pressure control solenoid valve harness or connectors - Pressure control solenoid valve circuit is open or shorted The Error code is generally activated on detection of the following conditions: The P0798 is triggered when the ECM detects an open or short circuit in shift solenoid valves
on Oct 15, 2012
Changing the plugs
Please use this for reference only since I have a 1996 C 220.
On the top center of the motor is a cover over the spark plugs. Remove
the cover and you should see your plug wires. Obviously just unplug
wires and remove the plugs. However I did not have a spark plug wrench
the held the plug so I had to put the plug into the wire and slightly
twist the plug into the opening. I then removed the wire again and used
the wrench to tighten. Only do one plug at a time obviously.
on Jul 02, 2008
Trouble with car
Phantom coolant level warning which turned out to be erroneous. No problem found and no catastrophic meltdown. Just the inconvenience of having to take it into the dealer to be checked.
on Jun 27, 2008
Not finding what you are looking for?