P2752: Intermediate Shaft Speed Sensor C Circuit Intermittent
The P2752 code indicates an intermittent signal from the intermediate shaft speed sensor C, which monitors the rotational speed of the intermediate shaft in the transmission. This sensor is critical for proper transmission shift timing and torque converter lockup. An intermittent circuit issue can cause erratic transmission behavior, such as harsh shifting or slipping, and may lead to reduced fuel efficiency. The problem often stems from wiring faults, connector corrosion, or a failing sensor.
01. Most Common Causes
- Faulty intermediate shaft speed sensor C
- Damaged or corroded wiring/connectors
- Intermittent electrical connection due to vibration
- Transmission fluid contamination affecting sensor
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission slipping or delayed engagement
- Reduced fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data to capture conditions when the code set.
Step 2: Visually inspect the sensor and wiring harness for damage, corrosion, or loose connections.
Step 3: Test sensor resistance and compare to manufacturer specifications; replace if out of range.
Step 4: Check for intermittent shorts or opens by wiggling the harness while monitoring sensor signal with a multimeter or oscilloscope.
Step 5: Clear codes and test drive to verify repair; if code returns, inspect transmission control module (TCM) for faults.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances with this code, as intermittent sensor failure can cause unpredictable transmission behavior, potentially leading to transmission damage or unsafe driving conditions.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for parts and labor, depending on whether the sensor or wiring needs replacement. Diagnostic fees may add $50-$100.