Tech Tip: Dodge Has A P2767 Code With Transmission In Limp In Mode – UnderhoodService

Tech Tip: Dodge Has A P2767 Code With Transmission In Limp In Mode

If you encounter a Dodge with a P2767 trouble code set, check the wiring between the transmission and the transmission control module. Make sure the #2 signal wire is not open, shorted to ground, or shorted to any other circuit. If the wiring checks OK, raise all four wheels off the ground, start the vehicle and place the shifter in drive. While lab scope testing the #2 signal wire, obtain second gear. When the transmission is in second gear, there should be a 5-volt square wave pattern being produced by the #2 sensor. If not, replace the sensor.

Applies To:
2006 300 3.5L
2006-’07 300 5.7L
2006-’07 Charger 3.5L
2006-’08 Charger 5.7L
2009 Grand Cherokee 3.7L
2006 Magnum 5.7L

Customer Concern:
P2767 trouble code (Torque Conv Clutch Press Ctrl Solenoid Ctrl Circ Range/Perf) is setting. Transmission is in limp in mode.

Potential Causes:
Lead Frame or Transmission Wiring

Tests/Procedures:
1. Check the wiring between the transmission and the transmission control module. Make sure the #2 signal wire is not open, shorted to ground, or shorted to any other circuit.

2. If the wiring checks OK, raise all four wheels off the ground, start the vehicle and place the shifter in drive. While lab scope testing the #2 signal wire, obtain second gear. When the transmission is in second gear, there should be a 5-volt square wave pattern being produced by the #2 sensor. If not, replace the sensor.

Tech Tips:
The speed sensors are sold as a complete assembly, which may be called the “lead frame” or ­possibly the “electrohydraulic control unit.”

Courtesy of Identifix.

You May Also Like

New Oil Specifications

Many 0W16 oils have a new donut certification mark on the bottle called API SN-PLUS and SN-PLUS Resource Conserving.

You may have noticed that some Toyota and Honda four-cylinder vehicles require SAE viscosity 0W16 oil. You may also have noticed it in the catalog pages or on the shelves of your oil supplier. The oil really stands out – the last number is strange because it does not end in a five or a zero. 

ECM Damage

Engineers have devised two strategies that can be called the “immune system” for the electrical system.

Voltage Drop Testing

The measurement of voltage is like the speed of the traffic.

Spark Plug Fouling

Understanding why spark plugs get dirty.

Why Alternators Are Subject To Ripple Voltage

The alternator produces an AC current that must be converted into DC current by way of a rectifier.

Other Posts

Deciphering Engine Misfire Codes

When the fuel/air mixture ignites, many factors must be met to pass a misfire monitor.

Hybrid Vehicle Fluid Maintenance

There are opportunities your shop can’t pass up just because the car or SUV has a hybrid badge on the back.

Reflashing Power Supplies

A power supply to keep the system voltage consistent is a required piece of equipment to perform a reflash procedure.

Today’s Fuel Pressure Diagnostics

Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals