P0755 on Dodge: How to Diagnose & Fix
Shift Solenoid B Malfunction
2 Dodge models · 2 documented issues · $300-$3,500 repair
P0755 on Dodge by model: symptoms, diagnosis and fix
The 42RLE 4-speed automatic in V6 Chargers suffers from solenoid failures and corrosion in the 10-pin solenoid harness connector. It causes slipping, harsh shifts, limp mode, and P0750/P0755/P0760/P0765 codes. On some 2006 Chargers with the 42RLE, the cup plug that retains the park pawl anchor shaft may be improperly installed, which can keep the transmission from reaching Park (DaimlerChrysler recall 05V460).
Common Symptoms
- Slipping gears
- Harsh shifts
- Transmission stuck in limp mode
- P0750/P0755/P0760/P0765 codes
- Speed limited to 40 mph in limp mode
How to Fix
Install the new-design 42RLE 10-pin connector (a dealer wiring repair) and replace the solenoid pack. Verify the park pawl recall has been completed. Use ONLY Mopar ATF+4 (68218058AC).
Sources for this issue (1)
The 42RLE 4-speed automatic suffers from solenoid pack failures and corrosion in the 10-pin connector. Causes slipping, harsh shifts, and limp mode.
Common Symptoms
- Slipping gears
- Harsh shifts
- Transmission stuck in limp mode
- P0750/P0755 solenoid codes
How to Fix
Replace solenoid pack and 10-pin connector. Use ONLY Mopar ATF+4 (68218058AC). Change fluid every 30,000 miles.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- 42RLE solenoid pack / block assembly, cross-referencing 04800171AA and 05143151AA
Replace after wiring, connector, pressure and scan-data diagnosis isolates the solenoid block Fitment: Product application explicitly lists 2007-2011 Nitro RWD/4WD with 42RLE Live direct US transmission-parts product page when checked
- Mopar ATF+4 fluid
Correct fluid for pan/filter/solenoid service Fitment: Use the 42RLE service fill and level procedure Live Mopar direct-product page when checked
Sources for this issue (2)
P0755 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0755 mean on a Dodge?
P0755 stands for "Shift Solenoid B Malfunction." This code means the transmission control module commanded shift solenoid 'B' but did not see the expected electrical response, indicating an electrical fault in that solenoid or its circuit. Shift solenoids are small electrically-operated valves inside the automatic transmission that route pressurized fluid to engage the correct gears at the right time. When the computer detects an open, short, or out-of-range signal on solenoid B's circuit, it flags this code. You may notice harsh or wrong-gear shifts, the transmission stuck in one gear, or 'limp' mode. On Dodge it is documented across 2 models: Charger, Nitro.
What are the most common causes of P0755?
The most common causes of P0755 are: Failed or stuck shift solenoid B, Damaged, shorted, or corroded solenoid wiring/connector, Low or dirty/contaminated transmission fluid, Clogged transmission filter or fluid passages, Valve body wear or internal hydraulic fault, Faulty transmission control module (TCM), Internal transmission mechanical wear. The specific cause varies by vehicle.
How much does it cost to fix P0755 on a Dodge?
Published repair estimates on Dodge range from $300 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.