Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPLYMOUTH1997PROWLER V6-3.5L VIN FREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSDESCRIPTION AND OPERATIONDIAGNOSTIC TROUBLE CODESTROUBLE CODE DESCRIPTIONS$22 (P1782) - 2-4 PRESSURE SWITCH SENSE CIRCUIT
1997 Plymouth Prowler V6-3.5L VIN F
$22 (P1782) - 2-4 Pressure Switch Sense Circuit
1997 Plymouth Prowler V6-3.5L VIN FSECTION $22 (P1782) - 2-4 Pressure Switch Sense Circuit
Name of code: $22 (P1782) - 2-4 Pressure Switch Sense Circuit
When monitored: Whenever the engine is running.
Set condition: This code is set if the 2-4 pressure switch is open or closed at the wrong time in a given gear (see chart below).
Theory of operation: The Transmission system uses three pressure switches to monitor the fluid pressure in the L-R, 2-4, and OD elements. The pressure switches are continuously monitored for the correct states in each gear as shown below.
Transmission Effects: If the 2-4 pressure switch is identified as closed in P or N, the code will immediately be set and normal operation will be allowed for that given key start. If the problem is identified for 3 successive key starts, the MIL will illuminate and the transmission system will go into relay open limp-in mode.
If the 2-4 pressure switch is identified as being closed in 1st or 3rd gear and was not identified as being closed in P or N, then 2nd gear or 4th gear will be substituted for 1st or 3rd gear depending on throttle angle and vehicle speed. A short period of time after the gear substitution, the transmission will return to normal operating mode. If the transmission is shifted back into 1st or 3rd gear through normal operation, and the 2-4 pressure switch remains closed, 2nd or 4th gear will be substituted briefly and then resume normal operation. If four gear substitutions occur in a given key start, the MIL will illuminate and the transmission system will go into relay open limp-in mode.
Possible causes:
- If code 35(P1791) is present, ignore code 22(P1782) and perform code 35(P1791) diagnostic procedures -
- 2-4 pressure switch sense circuit open or shorted to ground between TCM and solenoid pack * 2-4 pressure switch sense circuit shorted to battery
- Solenoid pack defective
- Transmission overheated - Excessive regulator valve leakage in valve body causing high line pressure which results in 2-4 solenoid blow-off in 1st or 3rd gear. May require new valve body if it happens only when hot.
- Loose valve body bolts
- Plugged filter - internal transmission or torque converter failure * Defective TCM
When monitored: Whenever the engine is running.
Set condition: This code is set if the 2-4 pressure switch is open or closed at the wrong time in a given gear (see chart below).
Theory of operation: The Transmission system uses three pressure switches to monitor the fluid pressure in the L-R, 2-4, and OD elements. The pressure switches are continuously monitored for the correct states in each gear as shown below.
Transmission Effects: If the 2-4 pressure switch is identified as closed in P or N, the code will immediately be set and normal operation will be allowed for that given key start. If the problem is identified for 3 successive key starts, the MIL will illuminate and the transmission system will go into relay open limp-in mode.
If the 2-4 pressure switch is identified as being closed in 1st or 3rd gear and was not identified as being closed in P or N, then 2nd gear or 4th gear will be substituted for 1st or 3rd gear depending on throttle angle and vehicle speed. A short period of time after the gear substitution, the transmission will return to normal operating mode. If the transmission is shifted back into 1st or 3rd gear through normal operation, and the 2-4 pressure switch remains closed, 2nd or 4th gear will be substituted briefly and then resume normal operation. If four gear substitutions occur in a given key start, the MIL will illuminate and the transmission system will go into relay open limp-in mode.
Possible causes:
- If code 35(P1791) is present, ignore code 22(P1782) and perform code 35(P1791) diagnostic procedures -
- 2-4 pressure switch sense circuit open or shorted to ground between TCM and solenoid pack * 2-4 pressure switch sense circuit shorted to battery
- Solenoid pack defective
- Transmission overheated - Excessive regulator valve leakage in valve body causing high line pressure which results in 2-4 solenoid blow-off in 1st or 3rd gear. May require new valve body if it happens only when hot.
- Loose valve body bolts
- Plugged filter - internal transmission or torque converter failure * Defective TCM
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.