Transmission Friction Element Apply Time Range/Performance
The P273A code indicates that the transmission control module (TCM) has detected that a specific friction element (such as a clutch or band) is taking too long to apply or is not applying within the expected performance range. This can be caused by low transmission fluid, a worn friction element, or a hydraulic circuit issue. The TCM monitors the apply time and compares it to a calibrated value; if the time is outside the acceptable range, this code is set.
1. Most Common Causes
- Low or contaminated transmission fluid
- Worn or damaged friction element (clutch or band)
- Faulty transmission solenoid or valve body
- Internal hydraulic leak or blockage
2. Symptoms You Will Notice
- Check Engine Light or Transmission Warning Light on
- Harsh or delayed shifting
- Transmission slipping or overheating
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Check transmission fluid level and condition; top up or replace if necessary.
Step 3: Inspect wiring and connectors to the transmission solenoids and TCM.
Step 4: Perform a transmission pressure test and solenoid resistance test.
Step 5: If no external issues found, remove transmission pan and inspect for debris or worn friction material.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as the transmission may slip or fail, causing further damage. Have it diagnosed as soon as possible.
How much does it cost to fix?▼
The cost varies depending on the root cause. A simple fluid change may cost $50-$150, while replacing a solenoid or valve body can be $200-$600. Major transmission repairs can exceed $1,500.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.