Mystery transmission problems: When the code doesn’t match the complaint
This one was a learning experience for me, and I hope my journey will help others if they run into this same scenario. A 2012 Nissan Quest with a 3.5L engine and the RE0F09B transmission came into our shop with the complaint that the CEL was on, there was a loss of power and the
Fixing JF011E primary pulley pressure sensor issues
A 2.4L Dodge Caliper using a JF011E CVT2 transmission developed a problem with the Primary Pulley Pressure sensor. A low circuit error code P0842 was pulled from the TCM. The sensor ground and 5-volt wiring circuits were checked and verified as good. The signal wire was then inspected and was also verified as good. There
JF015E CVT sensor blues and red
In past articles in the “Technically Speaking” series, it has been pointed out how easy it is for the primary pulley exciter ring fingers to bend while working on a JF015E continuously variable transmission (as seen in figures 1, above, and 2, below). Ironically, these fingers can become bent while fixing a compromised secondary speed
Nissan RE0F11A CVT transmission speed sensor codes, part 2
The complaint All Nissan vehicles using the RE0F11 (CVT7) CVT Transmission may have a complaint of P0715 “Input Speed Sensor A Circuit” stored after overhaul. (They may also have the complaint of P2765 “Input Speed Sensor B Circuit” stored, as seen in our other article). The cause The input speed sensor “A” exciter wheel is
Nissan RE0F11A CVT transmission speed sensor codes, part 1
The complaint All Nissan vehicles using the RE0F11 (JF015E-CVT7) CVT Transmission may have a complaint of P2765 “Input Speed Sensor B Circuit” stored. (They may also have the complaint of P0715 “Input Speed Sensor A Circuit” stored after overhaul, as seen in our other article). The cause The input speed sensor “B” exciter wheel is
Recalibrating Nissan CVT8
Over the last decade and a half, the industry has become very familiar with the Nissan/Jatco CVT. The market has been flooded with these affordable commuter and passenger cars providing impressive fuel economy. It is partly achieved through the efficiency of these transmissions, but they also have become known for failing within 100,000 miles. These
Neglected Nissan
I came to care for this 2007 Nissan Altima that would go into limp mode with transmission codes.
CVT Operation – Part II
Just like step type transmissions, CVT’s, come in various models some more difficult to diagnose and repair than others. Time and effort however need to be spent becoming familiar with the transmission types. The more that are tackled, the easier they should become to service.
CVT Operation – Part I
Transmission technicians have always needed to adapt to changing transmission architectures. This not only applies to step type transmissions but to the CVT (continuously variable transmission). The current volume of CVT models on the road today dictate that a shop must not refuse to do the work. Technical information and product availability continue to improve
Update: CVT Program Video
CVT diagnosis and repair has become increasingly difficult due to the computer controls.
Transtar Introduces Reman Subaru CVT Unit
Transtar Industries, Inc. has announced the availability of a CVT unit for 2012-2019 Subarus (p/n TR690 & TR580). The unit price across all models is 55-60% of the dealer shop price. Transtar offers an 18-month, 18,000-mile warranty with a $250 labor coverage. All critical components are replaced during the reman process and are dyno tested.
Hot Potato
After vehicle tossed from one shop to another, TCM replaced and vehicle returned to owner.
