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P1CB1 Powertrain · manufacturer code
P1CB1 fault code: what 8 Fiat owners reported
P1CB1 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition belongs to the carmaker and is not in the generic OBD-II list. What it meant in practice is below, from 8 complaints owners filed with NHTSA. Updated November 9, 2026.
- 8owner reports
- 1car model
- 0mention a crash
- 0mention a fire
- 2014–2014model years
Which cars get code P1CB1?
Every model whose owners mentioned P1CB1 in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.
Where does P1CB1 show up?
By brand
- Fiat8
Component the owner filed it under
Is there a recall for P1CB1?
The others concern the component owners file this code under (Power Train) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.
Power Train: Automatic Transmission: Control Module (Tcm/Pcm/Tecm) Chrysler (FCA US LLC) is recalling certain 2014 Fiat 500L vehicles. The Powertrain Control Module (PCM) software calibration maybe incorrect, limiting the engine to idle speed and torque even when accelerator pedal is fully pressed.
2014 Fiat 500L. Full risk and remedy on each car's report.
Power Train: Automatic Transmission Chrysler Group LLC (Chrysler) is recalling certain model year 2014 Fiat 500L vehicles manufactured April 5, 2013, through January 22, 2014. In certain temperatures, moving the transmission shift lever may have a delayed effect or no effect on selecting a transmission gear.
2014 Fiat 500L. Full risk and remedy on each car's report.
What happened when owners saw P1CB1?
8 of the 8 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
CAR CONTINUES TO HAVE SHIFTING GEAR ISSUE. WENT TO A MECHANIC WHO DID A DIAGNOSTIC TEST ON IT AND THE RESULTS ARE: Transmission Error Messages U0415 and P1CB1 and OBDII Codes ($03) shows the same error message as Transmission P1CB1 Manufacturer Specific. the closest Chrysler Dealership is unable to perform anything on this vehicle as they no longer are licensed for the Fiat Software. Hence, they are unable to inform me if this is covered by Fiat or if this is something that I need to fix out of pocket. Seeing that the 214 Fiat 500L does have a Power Train-Automatic Transmission Control Module and Power Train: Automatic Transmission (moving the transmission shift lever may have a delayed…
…" P1CB1-00 Gear Shift Actuator 1 Engage Failure" code stored. The car would not move while in reverse in the dealership parking lot when I went to up pick it up after repairs. I put my foot on the brake and called Gary to come out. He came out, sat in the car and I showed him that car was in reverse but would not move. He exited the car after turning it off. I saw three failed attempts to move the car while i waited for my ride home. VALENTI ALFA ROMEO FIAT in Hartford CT. " No codes stored at this time. .. Unable to duplicate." " Based on symptoms the customer has described the next logical step would be [to] replace ... $4200 parts $1600 labor plus tax. Customer declined repairs at this…
The Gear Shift Module is failing. It does not change gears from park to reverse or drive saying "gear unavailable". Service engine lite comes on and the red transmission symbol appears. I feel unsafe driving when this happens. I took it to a friend who is a mechanics and his diagnostic tool showed "P1CB1 gear shift activator 1 engage failure". This problem occurs with other customers complaints with this Fiat 500L model. I have to go to dealer and get this problem corrected because it is not safe to drive with the gears shift unresponding. I can image the bill I will be face with after all this.
THIS MORNING I GOT INTO THE CAR EVEN TRIED TO PUT IT INTO DRIVE BUT IT SAID SHIFT BACK TO NEUTRAL THEN TO REVERSE OR FORWARD. I TRIED JUST LIKE IT SAID AND IT STILL CONTINUED THROW THE ERROR. AFTER LIKE THREE OR FOUR TIMES IT SKIPPED FIRST GEAR AND SHIFTED TO SECOND GEAR BUT THE CAR JERKED AS SOON AS I STEPPED ON THE PEDAL. I TURNED IT OFF FOR ABOUT AN HOUR AND THEN TRY IT AGAIN AND I HAD THE SAME PROBLEM. THIS TIME I PUT IT INTO REVERSE AND ACTUALLY WENT IN REVERSE, THEN IT ALLOWED ME TO GO INTO FIRST GEAR. I CHECKED THE CHECK ENGINE LIGHT CODE AND IT THREW A P1CB1 CODE WHICH INDICATED IT WAS SOMETHING TO DO WITH THE TRANSMISSION. I'M TRYING TO MAKE AN APPOINTMENT WITH THE DEALERSHIP BUT…
…ON 9/30/19 I TOOK IT TO THE FIAT DEALER IN MAPLE SHADE, NJ, WHERE THEY TOLD ME AT 35,000 MILES THE TRANSMISSION WOULD NOT ENGAGE (P1CB1 GEAR SHIFT ACTUATOR FAILURE) AND NEED TO BE REPLACED. BUT WHEN THE INSURANCE ADJUSTER GOT THERE HE COULD NOT REPLICATE THE ISSUES SO THEY WOULD NOT COVER A NEW TRANSMISSION. FIAT CUSTOMER SERVICE OFFERED NO ASSISTANCE EVEN THOUGH THE ISSUES WITH THIS YEAR MAKE/MODEL ARE WELL-KNOWN.
…I MANAGED TO GET MY CAR HOME AND TO THE DEALERSHIP THE NEXT MORNING WHERE THEY DIAGNOSED THE TCM AS BAD (CODE P1CB1). IT COST ME $1,221.51 TO FIX! THERE WAS A COMPLETED GEAR SHIFT MODULE RECALL (NHTSA # 14V-103) IN MARCH 2014 AND A COMPLETED REPROGRAM POWERTRAIN CONTROL MODULE RECALL (NHTSA # 17V-192) IN MARCH 2017. FIAT HAS FAILED MISERABLY TO FIX THIS TRANSMISSION ISSUE AND THERE'S STILL REPEATED PROBLEMS AND COMPLAINTS. THEY DID NOTHING FOR ME WHEN I CONTACTED THEM! IT IS A SAFTEY ISSUE! DOES SOMEONE HAVE TO DIE BEFORE THIS IS RECALLED? BECAUSE I COULD HAVE!
WHILE DRIVING IN DOWNTOWN SEATTLE TRAFFIC, GEAR WOULD NOT SHIFT INTO 1ST OR 3RD GEARS. IT WOULD ONLY MOVE FROM 2ND TO 4TH, THEN, TO 6TH. HAD TO PULL OVER, SWITCH OFF THE CAR, WAIT ABOUT 10 MINUTES. THEN, AS I TURNED THE CAR BACK ON, IT WAS WORKING AS IF NOTHING HAPPENED. THAT HAPPENED 3 TIMES, ALREADY: AT THE BEGINNING OF MAY, THEN ON MAY 22ND AND, THEN, ON MAY 31ST (LAST TIME IT HAPPENED, SO FAR). TOOK THE CAR TO THE FIAT DEALERSHIP (IN RENTON, WA) ON JUNE 04TH AND THEY SAID IT THE TCM IS ATTEMPTING TO ACTUATE THE GEAR SHIFT 1ST-3RD AND IT FAILS TO REACH THE TCM REQUESTED ENGAGEMENT POSITION. THERE IS AN ERROR CODE FOR THAT: P1CB1-00-GEAR SHIFT ACTUATOR 1 ENGAGE FAILURE. THEY SAY THE COST…
I'VE HAD MY 2014 500L IN TO THE DEALER MULTIPLE TIMES BECAUSE IT WOULD NOT SHIFT INTO GEAR AFTER STARTUP. OF COURSE THEY NEVER DUPLICATE THE PROBLEM WHEN THEY HAVE IT. TODAY WHILE DRIVING I STOPPED AT A RED LIGHT AND PUT THE CAR IN NEUTRAL. WHEN THE LIGHT TURNED GREEN I PUT IT IN DRIVE AND IT WOULDN'T GO INTO GEAR. DASH LIT UP WITH TRANSMISSION AND CHECK ENGINE LIGHTS. AFTER ALTERNATING BETWEEN PARK AND DRIVE A FEW TIMES I FINALLY GOT IT TO GO BUT ONLY HAD GEARS 2,4,6. AFTER GETTING TO A SAFE PLACE I TURNED IT OFF AND WAITED A FEW MINUTES. UPON RESTART ALL WAS BACK TO NORMAL AND TRANSMISSION WORKED SMOOTHLY. DEALERSHIP PULLED A CODE (P1CB1) BUT WILL NOT REPLACE TRANSMISSION UNDER THE CURRENT…
P1CB1: questions drivers ask
What does code P1CB1 mean?
P1CB1 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition depends on the carmaker and is not in the generic OBD-II list. 8 owners reported it to NHTSA, most often for the Fiat 500L (8); their reports describe what happened.
Which cars get code P1CB1 most often?
In NHTSA owner complaints, P1CB1 is mentioned most for the Fiat 500L (8), across 1 model and model years 2014 to 2014. Popular models collect more reports because more of them are on the road.
Is there a recall for code P1CB1?
No NHTSA recall text names P1CB1 directly. 2 recalls on the cars that report this code concern the same component owners name most (Power Train); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P1CB1?
Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.
How this page was made
CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P1CB1. Manufacturer codes have no public standard definition, so CarHooq shows only what owners reported. Nothing here is a diagnosis. More answers: the fault code FAQ. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 9, 2026. How CarHooq reports are made.
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