P0755 on Chrysler: How to Diagnose & Fix
Shift Solenoid B Malfunction
3 Chrysler models · 3 documented issues · 3 critical · $250-$4,500 repair
P0755 on Chrysler by model: symptoms, diagnosis and fix
The 41TE (A604 Ultradrive) four-speed automatic used behind the 3.3L and 3.8L V6 in 1996-2007 Town & Country vans is the single most-reported failure on the nameplate. Clutch material and worn friction debris circulate in the fluid, plug the small feed passages in the valve body and pump, and starve the planetary gearsets of lubrication. The result is a burned front/rear clutch pack or a shattered planetary carrier. Owners commonly report the failure preceded by a stuttering or repeated 1-2 shift, delayed forward/reverse engagement with a double bump, and limp-in (second gear only). Aggravating factors documented on the owner forums include use of generic ATF instead of Chrysler ATF+4, a missed 30k-mile fluid service, and a weak/AC-ripple-producing alternator or a bad output shaft speed sensor signal confusing the TCM. This is the 4-speed unit and is a separate story from the later 62TE 6-speed used from 2007 on.
Common Symptoms
- Repeated stutter or flare on the 1-2 shift
- Delayed engagement into Drive or Reverse with a hard bump
- Stuck in second gear (limp-in mode)
- Whine or growl that changes with road speed
- Burnt-smelling, dark ATF with clutch material in the pan
- Speedometer drops out along with the shift fault
How to Fix
There is no recall. Confirmed hard-part failure requires a rebuilt or remanufactured 41TE with an updated valve body and upgraded clutch/planetary components; a fluid-and-filter service alone will not save a unit that is already slipping. Preventively, forum consensus is a drain-and-fill with genuine ATF+4 every 30,000 miles (a pressure flush on a neglected high-mileage unit is often what pushes it over the edge), plus verifying charging-system ripple and the OSS/ISS speed sensor signals before condemning the transmission - electrical faults mimic mechanical failure on this unit.
Sources for this issue (3)
The 41TE (A604) automatic transmission is prone to solenoid pack failure causing erratic shifting, limp mode, and harsh engagement. The 41TE was one of the first fully electronic automatic transmissions and reliability suffered.
Common Symptoms
- Harsh shifting
- Stuck in 2nd gear (limp mode)
- Delayed engagement
- Slipping between gears
How to Fix
Replace solenoid pack assembly and fluid filter. Use only ATF+4 fluid. The updated solenoid pack from Mopar addresses the original design weaknesses. A full transmission rebuild may be needed if internal damage has occurred.
Sources for this issue (1)
The rear-mounted 42LE (A606) automatic can drop into limp-in (fail-safe) mode when the electronic shift solenoid pack develops internal faults. Symptoms are the transmission locking into a single gear (commonly 2nd, or only 1st and reverse) until the ignition is cycled, often accompanied by a check-engine/transmission light. This is distinct from the fluid-overheating and AutoStick harsh-shift issues: here the solenoid pack itself (or its wiring/connector) is the root cause and typically sets solenoid-performance codes.
Common Symptoms
- Transmission stuck in one gear (limp mode)
- Only 1st and reverse available after warm-up
- Harsh or no upshift with warning light
- Fault clears after ignition off/on
- No torque-converter lockup
How to Fix
Scan for codes and confirm with pressure/solenoid tests before parts replacement. Replace the shift solenoid pack (reman Mopar A606/42LE solenoid pack, PN 4539766) along with a fresh filter and correct ATF; cycling the ignition off/on temporarily clears limp mode as a get-home measure. Verify the transmission connector and internal wiring harness are not the fault before condemning the pack.
What you need to diagnose it
The repair instructions explicitly call for reading stored codes. Use a scanner that can read the named code families before choosing a repair.The recommended scanner supports these code families; confirm your exact year, model and module coverage before buying.
ANCEL AD310 Classic OBD-II Scanner
Read & clear engine (P) codes
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Reading and clearing the code is DIY work. Module replacement or reprogramming is not — most modules are VIN-programmed, so a new one does nothing until a shop codes it to your car. Check for an open recall or service bulletin before buying anything.
Sources for this issue (1)
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 Chrysler?
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 Chrysler it is documented across 3 models: Town & Country, Cirrus, Prowler.
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 Chrysler?
Published repair estimates on Chrysler range from $250 to $4,500 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.
Looking for P0755 on a different make?
View P0755 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.