P0713 Toyota
The Diagnostic Trouble Code (DTC) P0713 for Toyota vehicles indicates a Transmission Fluid Temperature (TFT) Sensor “A” Circuit High Input.This means the Powertrain Control Module (PCM) has detected an abnormally high voltage signal from the TFT sensor, often due to an open circuit or high resistance.
Common Symptoms:
- Illuminated Check Engine Light (CEL).
- Harsh or erratic shifting.
- Activation of “limp” mode, restricting gear usage to protect the transmission.
- Transmission may be locked out of higher gears to prevent potential damage.
Potential Causes:
- Faulty transmission fluid temperature sensor.
- Damaged or corroded wiring/connectors in the sensor circuit.
- Open or shorted circuit within the TFT sensor wiring.
- Issues with the PCM (rare).
Diagnostic Steps:
- Examine the TFT sensor and associated wiring for signs of damage, corrosion, or disconnection.
- Sensor Testing: Use a multimeter to measure the resistance of the TFT sensor.Compare readings to manufacturer specifications to determine if the sensor is functioning properly.
- Circuit Testing: Check for continuity in the wiring between the sensor and the PCM to identify any open or short circuits.
- Scan Tool Analysis: Utilize an OBD-II scanner to monitor real-time data from the TFT sensor, verifying if it aligns with expected temperature readings.
Repair Solutions:
- Replace the TFT Sensor: If found faulty during testing.
- Repair or Replace Wiring/Connectors: Address any identified issues in the sensor’s circuit.
- PCM Inspection: In rare cases, if all else fails, the PCM may need evaluation or replacement.
Addressing the P0713 code promptly is crucial to maintain optimal transmission performance and prevent potential damage.If you’re not experienced with automotive diagnostics and repairs, it’s advisable to consult a qualified technician to accurately diagnose and resolve the issue.
For a visual guide on fixing the P0713 code in Toyota vehicles, you may find the following video helpful:
P0710 P0712 P0713 Toyota – U151F Automatic Transaxle
p0713 transmission fluid temperature sensor location
The Transmission Fluid Temperature (TFT) Sensor for Toyota vehicles is generally located within the transmission itself, as part of the transmission valve body or integrated into the transmission wiring harness. Its exact placement depends on the specific model and transmission type. Below is a general guide:
Common Locations:
- Inside the Transmission Pan:
- The TFT sensor is often mounted on or near the transmission valve body.
- Accessing it typically requires removing the transmission pan.
- Integrated into the Wiring Harness:
- On some models, the TFT sensor is integrated with the transmission wiring harness connected to the valve body.
- External Location (Less Common):
- In rare cases, the sensor might be mounted externally near the transmission casing.
Steps to Locate the Sensor:
- Consult the Vehicle Manual:
- Refer to the repair or service manual for the specific Toyota model to identify the exact location.
- Inspect the Transmission Wiring Harness:
- Trace the wiring harness connected to the transmission for the sensor’s location.
- Remove the Transmission Pan (if needed):
- For internal sensors, the transmission pan must be removed to access the valve body and sensor.
- Look Near the Valve Body:
- The TFT sensor is often near or attached to the valve body, identifiable by its small size and electrical connector.
Tools Required:
- Socket set and ratchet
- Screwdrivers
- Jack and jack stands
- Transmission fluid (for refilling)
- Transmission pan gasket (if removed)
If you’re unsure about performing this repair, consult a professional technician to ensure proper diagnosis and replacement of the sensor.