Engine Coolant Bypass Valve Position Sensor Circuit Low
Table of contents
P26A6 DODGE Possible Causes
- Faulty Coolant Three Way Valve Sensor
- Coolant Three Way Valve Sensor harness is open or shorted
- Coolant Three Way Valve Sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P26A6 DODGE?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P26A6 DODGE code
The cost of diagnosing the P26A6 DODGE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P26A6 DODGE Description
The primary purpose of transmission thermal management system is to keep the Transmission fluid of the 8 speed Transmission at its optimal operating temperature range. This is accomplished by directing coolant flow not required for cabin heat to the Thermal Management Unit (TMU) located on the left hand side of the Transmission which transfers heat from the engine coolant to the transmission oil fluid. Coolant flow is directed by means of the Coolant Three Way Valve located upstream of the cabin heater coolant supply. The coolant that is sent from the Coolant Three Way Valve warms the transmission fluid in order to get it up to the ideal operating temperature range quicker.
The Coolant Three Way Valve is supplied Battery voltage and a ground circuit. The Coolant Three Way Valve position is electrically controlled using a 12 volt PWM high side signal from the Powertrain Control Module (PCM). The PCM will send a PWM signal of 25% or 75% to the Coolant Three Way Valve, depending on whether the coolant is desired to be directed to the Heater Core or the TMU. The Coolant Three Way Valve has an internal position sensor that sends a signal back to the PCM. The sensor operates as a typical three wire sensor which has a 5-Volt Supply circuit, Signal circuit, and Return circuit.